Check out the CPU found in the other PC in the dumpster, the best one yet!: th-cam.com/video/mK8WrWCavW0/w-d-xo.html And UPDATE: The machine also has a secure TPM crypto chip in it, nice!
The power connector has three connections: Vcc, Ground and Sense. Sense is the middle connector, ground is in the two contacts you already identified. The Vcc contacts are facing the ground contacts on the middle plastic part. They are a bit hidden. These Lenovo chargers are not smart. They have a specific resistance connected between the sense and ground so the device knows how much power it can draw or if it wants to run at all.
@@EEVblog Yeah, that's what I said. Ground are the two outer contacts and the Vcc contacts are attached to the middle plastic part and facing the ground contacts.
@@EEVblog The diagram you showed was technically right. The VCC is pointing to the contacts on the inside of the connector and the ground is the outside of the connector. superuser.com/questions/1246823/lenovo-trim-yellow-rectangular-power-adapter :)
@@EEVblog You were looking at a Lenovo Laptop some years ago i think? or some other Lenovo product, it used their old style of power plug but it's the same deal, and it also caused a headache for you there.
left a comment but, check out PCunlocker . bootable tool you can put on usb and get access to change any user password and make them local and stuff. Great for dumpster diving.
Allow me to jump in and defend this AC jack for a moment. These rectangular jacks were originally found on the T*4*-series of Lenovo laptops as a replacement to the barrel jack. They have a greater shear resistance comparatively to the barrel jacks of yore due to the increased soldered area to the circuit board and the reduced height, making them much sturdier and harder to rip off than a barrel jack. These days, we have USB C, and it's all nice and standard :)
I hadn't considered the increased soldered area but I feel like they could just as easily have made a stronger barrel connector. Like they barely save maybe 2.5mm on this construction just to make a ton of accessories useless, for a port that is electrically identical to the old one.
@@Nukle0n they made a better barrel connector before that and it was big and ugly. the slim tip truly is the best power connector when it comes to high power draw. anything below 100w luckily gets usb C now.
I have an L390 Yoga with USB C :) loving it, Powerdelivery lets me charge via my truck's 12v and phone's power bank. Saw this on my buddy's cheapo laptop with that and honestly not too bad, better than the barrel on my old dell
4:27 ... If you look closely, the icon above the power jack shows "-" on the outer ring, "+" on the inner ring and then there's the dot in the middle for the centre sense pin.
I think I'll try and use this as a large screen capture drawing tablet. My Microsoft surface is messy for this, but this has the perfect 1920x1080 screen capture area, the touch screen, and support for a 2nd monitor to use for recording monitoring.
That's a cool idea. I'm picturing it attached to something much like one of those adjustable drawing table that swings from vertical to horizontal. For software to improve the touch usability I know Epson has a drawing suite meant for their line of IR projectors for smartboard functionality. I don't recall it being locked down given it was meant to be compatible with all the proprietary software from earlier smartboard mfgs. Thinking about it I might have to try it myself on one of those 2 in 1 laptop/tablets.
The best way to clear up space and clean Windows would be to get a USB with Windows 10 and blow away the old stuff, there will be a partition with a OEM recovery image that will take up a fair bit of space on the drive that is not needed as well. Win 10 OEM activation is all in the BIOS so no keys to worry about either.
Its probably got another ram slot on the back side of the motherboard. if you actually plan on using it, integrated graphics benefits greatly from having dual channel memory. if you have another 8gb sodimm ram stick laying around it would be worth it to throw in there.
Dave -- I know I'm being paranoid, but: computer found in the dumpster room? Might be worth a fresh install out of concern for malware/etc on the machine? Even if not done maliciously, the previous owner may have been lax about things (and Norton obviously isn't much use.) I'd personally be pretty hesitant to put any serious data on there. At least use a different password?
Came for the title, stayed for the enthusiasm! Your positivity is contagious, Dave! That little walk-through on removing the OS password was an unexpected bonus :) Keep-em comin', mate!
@@ThePlacehole Ah, so it's from the good old days, where one could pwn windows with big enough ping packet, certain vector image and just by browsing folders with links in them in general :)
The shop I used to work at back in college ended up with some early aio machines and what a nightmare it was for me and the owner as the machines were such junk.
A windows 10 reinstall would have been better, the key is built in. UEIF or whatever that acronym is. When installing windows, it attempts to trick you to get a Microsoft account, but you have to keep telling it to piss off. I will be done with Windows if they ever force that.
@@RickyX64 What "drivers", there is nothing to it. Its not like the days of old. That's why windows physical memory size is so massive, from the libraries. Either way, any real nerd would have a SSD with Linux ready to go. Also, I went to try Arch linux, turns out, its not so straight forward lol. No wonder people flex with it. I shall too.
Most issues I run into in Australia with computer problems when I fixed computers was them running slow. I always discovered it was one of three issues; Windows was corrupt (and windows 10 corrupts easily), conflicting security software or bloatware, usually in the form of free software attached to downloads. Also, there is that other issue with the 2018 build of Windows 10, you literally have to reinstall windows if you want to version update past it, because it has a bugged updater.
@@foxdavion6865 Or the 4th one - the users browsing habits arent terribly good, and you end up removing 15 toolbars from I.E. (because they're not smart enough to use a real browser) and then wait as MBAM or similar antimalware software removes the 13,000 PUP's from the machine. Boom instant speed demon again :)
That connector is a special Lenovo one, like the big round one. They used the round one until 3rd gen und the square one until 8th or 9th gen. Since then they use USB-C.
I love that you showed off this hack. It's one of my favorites. It's funny that since the XP days, they not only didn't fix this simple hack but made it easier where you don't even need to boot from a disk or thumb drive.
The Lenovo plug has 3 connectors, the center pin, the inside of the "shroud" and the outside. The center data for the computer to communicate with the power supply, find out what model it is, etc, althought it's not a DRM thing where it doesn't work if it doesn't detect something, but this is how it was even on their old connector, they just changed the shape of it, and I believe you struggled with this on another occasion with a Lenovo laptop.
there's huge risk you are forgetting; the touchscreen drivers. They aren't standard yet so Windows didn't have them in repository. If you just reinstall Windows without checking first then I'm afraid you won't find out the screen is a touchscreen at all.
@@xponen It would seem likely that the touchscreen driver was available to download... maybe from some fancy web of sites that covered the whole wide world.
@@jmonsted you are right, it is probably on Distributor's website, but the scary thing is that the OEM might not upload their driver & configurations online instead pass it on to Distributor to upload it online. In a good example we have Intel who provides driver on their website while the Distributor customise the driver and re-upload it on their website, but for other OEM they do not provide a website for download and the Distributor might not either or just didn't update them.
BigJoe_Buster The only thing that’s secure from the manufacturer is Apple’s encryption at the boot level. MS just fails hard. Even their hardware bitlocker encryption is trivial to circumvent. This type of security is always difficult though since you have physical access. On Macs, if you have physical access to get past boot you can reset the password from the restore mode without any screwing around.
@@Alexlfm Yep, all Macs have FileVault enabled by default (quite nice too, the T2 chip handles all encryption). And starting with Catalina, Macs have the same activation lock as iPhones (so if your laptop is stolen, it's basically a brick to them since it'll need the iCloud account details to reset).
Physical access defeats all security short of an encrypted drive. But with a more secure OS on the drive you'd have to boot a different OS to bypass the security.
Hey Dave - a general remark to these items & also to your laptop videos: ALWAYS the heatpipes go dirty over the time and it's a nightmare to clean them. The ability to remove heat always lowers over time. The plates that distribute the heat from the pipe to the air are so close by - they can only collect dust. So I suggest, if you already open such a case, remove the ventilator and remove the dust / mold between the ventilator and the heatpipe - for example by vacuum cleaner. When ever I opened a used laptop - the heatpipe exhaust always was completely dirty.
I really had a struggle when I came across those big yellow barrel connectors on the far left at 5:04. They also have a center pin, but it was not connected in my case. There are two seperate tubes in the outer "ring" and the inner one was positive...
You'll love those square connectors Dave, especially if you have any other Lenovo gear. They were standard for several generations of Lenovo hardware, before being replaced by USB-C. You can get the power adapters for peanuts from a place like eBay, or hell, you might be able to beg some if you have any local enterprises that use Lenovo gear - they'll have totes overflowing with them! edit as I watch the video: Yeah, they're bidirectional and can be inserted either way.
That "GC-0700 (Samsung)" marking is showing what plastic the mold is intended to be used with. There are several vendors making a "GC-0700" ABS/PET mix, but they have some variation in characteristics and so for the best part quality you want to run production using the same plastic the test shots were done with.
@Dave instead of 'hard shut down', at the login screen, you could connect a keyboard and mouse; click on the power icon, hold down shift on the keyboard and click restart.
Excellent find, congratulations! I still use 10 year-old processors with excellent performance, let alone something so new like this. It is quite hard to understand how this would end up in a dumpster - hopefully it is a simple case of novelty that wore off. That or venture capital that flooded towards one of the startups/companies of your building. If it wasn't for Windows 10... :D
Reminds me of when I scored a HP Color Jet CP1515n printer with half-full toner cartridges during a roadside council-cleanup. The printed image in colour was not entirely spot even after re-alignment procedures. Somehow, two years after hefting it home, the alignment came good, so it really became wiinner-winner-chicken dinner fodder.
PSU tips are available for laptops to convert older Lenovo DC barrel connectors to that rectangular style - or at least look very similar. They're only a dollar or so. "Thinkpad PSU plug " would be a good search term to try in Ebay - but carefully sheck the pics to make sure it's the same.
Note for non-Australian viewers: "Gone Walkabout" is an Aussie expression for going away for a holiday/vacation. It has its origins with the habit of some Australian natives of working for a while then wandering their traditional lands for a while before perhaps coming back to work some more.
If you are reselling, it is MUCH better to leave them on. Same as factory screen protectors on multimeters, etc. It's there to protect the screen, so let it do it's job.
that unit uses a 20V adapter. the center pin is a identifier pin.. which uses a resistor in the plug to determine the wattage of the PSU 65Watt = 285 Ohm to ground 90Watt = 548 Ohm to ground. Also wanted to note... putting 20V into that center pin you take a 50/50 risk of blowing the sense circuitry
That was pretty cool. I dumpster dived a Windows 7 medium tower PC about 4 years ago that was sitting on the side of the road by a used car dealership. It worked fine nothing wrong with it at all, I didn't even have to bypass the password as it was totally unprotected. I slicked the docs, added me as administrator and deleted the other users. As you say, "In like Flinn". Ok what does that even mean dave? Thanks for sharing it was fun. - Oh here's a novel business idea for you folks in huge complexes. Go to the companies and offer to sale their old equipment for 10% of the sale price. They don't have to lift a finger. If they don't want to do that, sneak your request to the person who dumps their trash. You'll get the latest junk without missing a thing. Best Wishes & Blessings. Keith Noneya
In the U.K. people steal stuff and quickly put it in a bin, so that they cannot be stopped with it if the police are quickly on to the theft. They return later to collect the item when any police activity dies down. This happened to some carpenters working at a mates house... their tools were taken from their van, but they were quickly found by searching nearby bins... and apparently a bloke on a bike nearby was looking a bit pissed of they were found.
@@PaftDunk no, he doesn't have the factory default driver for the touchscreen and the pop-up camera, it would render them useless or function inappropriately.
@@PaftDunk For sure, plus you don't want all the previous persons garbage software on there and who knows what viruses/malware is hiding on it. Boot off Windows 10 USB, diskpart, "clean", install. Done. Clean.
@@xponen That's not too hard to fix: either the drivers will be fetched through windows update, or a simple search for the model number will bring you to a page where you can download them.
@@VisibleReality Window updates did not and will not include the driver's OEM tools used to configure the driver, eg: for calibrating Windows tablet's sensor, such as orientation (up down left right). Also a Touchscreen driver have same name but different resolution depending on model being used on; eg: the difference in resolution, the place to put OEM button for tablet. In camera devices there's also variation; like an Imaging system is host to a modular camera with its own driver, better install the right one in sequence.
Welcome back Dave, good to see you back on it. Looking forward to the fence controller diagnosis and fix, interested to see what kind of voltage and (milli?)amperage it kicks out.
There is an more easy way to get in recovery mode, when you are at the login screen hold SHIFT an pres on the Restart button hold shift until you are in recovery
I usually use the regedit trick instead, you plug a Win10 recovery USB stick into your PC (really just the standard Win10 installer), boot up to it, press 'shift+f10' after going a couple of steps in, type 'regedit', load the c:\windows\system32\etc\system.dat hive into the registry, and change some stuff, basically this: winaero.com/blog/reset-windows-10-password-without-using-third-party-tools/ Really handy thing to do, either way works though.
Dave, look closely at the barrel jack pictogram. It clearly shown that the powered terminals are outer shell, inner shell and not the center pin. The big-ass DC-jacks in your assortment is the same. The big hollow casing is co-axial and the center pin is not current carrying (it's too thin)
Thanks for the password reset cmd tip. That's exactly what I needed today for a laptop and it work the first time, unlike yours witch had a Microsoft account :)
That command prompt "hack" /exploit was fantastic. XD "Defense in depth", Microsoft might have once had an uncle who may have had a dog, who might have heard of it.
17:53 -- "And yes, I really do find this stuff in the dumpster! I have to keep saying this!" A few years ago you made a video about a $250k Oscilloscope you'd "found in the dumpster." When I asked you whether or not it was actually some kind of "wink wink, nudge nudge" promotional video for the manufacturer, you outright called me an idiot for thinking it was _ever_ even possible that you _could_ have found something like that in the dumpster, implying everyone is just supposed to _know_ when you're showing a legitimate dumpster diving score versus a product some company offered to send you for a review that you knew would make for a good video (which, in my opinion, is a wholly valid reason to make a video -- if the content is good and you're honest about its nature, why shouldn't you make a little extra money). Naturally, after you said something to me, I got literally hundreds of comments from people calling me stupid, openly wondering how I'd survived long enough to ask you that question. Now you're here saying, _"Yes, I really do find this stuff in the dumpster! _*_I have to keep saying this!"_* You're a brilliant person, Dave, and you make excellent content, but you _know_ why people question the legitimacy of content like this. Congrats on the new PC regardless.
Just check the date. If it's April 1st (or March 31st in the western hemisphere) then you can assume that it's bunk. Personally I hate April fools jokes but I don't resent others for having their fun.
The machine i'm using now was tossed curbside (in the snow!), the original hard disk was infested with malware (the reason why it was thrown out), so formatted it. Since I don't use windows regularly, I just put linux mint on it. Quad core, manufacturer said it was 'limited to '8GB RAM' however, now it's got 24GB. Turns out said limits are hogwash. It was made around 2009, 11 years ago. Works with the latest windows 10, works with any open source software distribution.
I've supplied Lenovo's for years and on the whole found them to be robust. Nov 19 I replaced 5 AiO's for an office supplied back in 2012. Only reason for the replacement was the FSB wasn't fast enough to justify an SSD (had gone to W10 and did a test). The AiOs are being sold on as they are still good enough for light / domestic duties.
Why go through all this complicated renaming of the files, when you could just reset PC to the factory condition through that same troubleshooting menu?
You read the label on top of the power port wrong. The negative goes to the "C" , to +ve goes to the "Circle" and the center dot is not connected to anything.
Dave, that's not a positive center icon. For 2 wire power you'd have an icon with a solid dot in the center. What this icon indicates (and I agree the icon doesn't match the jack) is an outside shield negative an inner ring positive and a center pin. This is similar to the Dell power jack for laptop, which also has a center pin to indicate power pack power available.
I don't know how dumpsters everywhere have computers, TVs, game consoles, almost everything you can find at an electronics store while all I see in the dumpsters around me are rotten peels, plastic bags, used diapers and all that rotten shit, plastic bags, styrofoam, etc... The only things other than that are old broken CRTs which people have already "stolen" the yokes from the picture tubes and their power cords.
Алексей Рукин should have used the copy command instead of rename. Microsoft’s next update will check hashes of executables and block those not originally installed.
yeet "published 1 minute ago" edit: the hdmi port might be an input, have seen a lot of AIO pcs that double as an external screen for your laptop or other device
That's true. The HDMI port on many AIOs is more often an input, rather than an output. It means you can run two PCs but use the same screen for both. There might be a selection for the HDMI input in the setup - Internal/External/Auto. Some people prefer to do that rather than run a virtual machine for the second platform because it's technically a lot easier, plus it can also be handy for occasional use stuff like a media box or a R.Pi. Only AIOs with quite a decent graphics sub-system will have an *output* capable of running a second screen - higher end Asus etc.
My college has some Dell AIOs from about mid 2018/2019 and on the back there is a HDMI connector for input and on the side next to the brightness controls is a button to switch the display input so its more likely that the HDMI input is so that the PC can be used as a secondary monitor when the PC becomes outdated. It may also be that Lenovo (or any other manufacturer of AIOs) just take a generic display panel that they would normally be using in a standalone monitor and then integrate its controller board into the PC's Motherboard and the Windows Operating system in order to lower cost which is probably why almost no AIOs have any Linux Drivers or at least to any of my knowledge.
To reset passwords there are multiple bootable ISOs out there. You can put them on a Ventoy drive and directly boot them. By doing that, you don't have to change the file names.
o0julek0o if you know someone who works at a dump or an electronics recycling centre... people dump some insane crap. I live in the country and a nearby tip got an electrician I know to test a bunch of electronics they wanted to resell. Including an I9 a bunch of laptops and PCs from the last few years and a Gas Chromatograph which still sells for $20000 on ebay. They also had a bunch of workshop equipment and pretty much the only thing that failed was a 3 phase welder. Everything that passed worked. As far as I know They just chucked any storage on the computers and their office computer which was running Windows XP is now a fancy I7 all in one so I suspect they found uses for everything they didn’t want to sell.
It's definitely broken, it's infested with some sort of malware called windows 10. Luckily, the fix is pretty easy, you just need to install Linux on it.
Nice score!, you can actually go into Windows Advanced mode by holding down shift and click power button on windows login and restart the computer, hold down shift, you don't have to start computer 3 times :)
That power connector is the same one that Lenovo uses for their laptops. It's actually not so bad when you consider it's standard across their hardware ecosystem.
In Windows 10 Home setup there is a way to NOT use a Online account. Option 1) Disconnect LAN cable before the dialoge window about user accounts show up, now you can use a local account. Option 2) type 1234 where it asks for email adress/username. It will trigger 'activation by phone' but also displays the option for an offline account
"It's got speakers, it's got core i5 7th gen, it's got USB, it's got Ethernet". You left out that it probably has a BIOS supported root kit too! Lenovo was found to be putting root kits in their BIOS so you can't prevent or remove them, thereby giving them a backdoor into your system.
I came to campus one morning with a homemade big ass powerbank that could charge laptops. I took a look at my friend's lenovo and figured "alright 19V center positive". It fried the entire computer immediately. Turns out the center pin is connected _without so much as a series resistor_ to an analog input on the chipset. You have no idea how lucky you got
Actually that symbol on the back shows two rings and a center pin. The outer ring is negative, the inner ring is positive and the center pin isn't connected. The PC should turn on but show a warning about a mismatched power adaptor without the center pin.
The original owners probably had a power supply (cable?) crap out and although it apparently could produce the 20v, the power good signal pin actually didn’t have any connection so they never suspected the PC itself to be unaffected.
You can also change passwords using a bootable Win 10 USB stick then also use Ease of Access. It's pretty much the same thing only it gets you to the command prompt faster.
Those jacks are more robust than a barrel jack test, it does have a sense, The only thing these need after a few years is fresh thermal compound and a dust out - ram wise some have a single slot others have 2 with the other slot on the back of the pcb
4500 passmark for 15W is very good for 24/7. I've been trying to find something like this for years to make a secure dedicated server rack terminal / monitoring frontend. Unfortunately can't find anything inexpensive.
Check out the CPU found in the other PC in the dumpster, the best one yet!: th-cam.com/video/mK8WrWCavW0/w-d-xo.html
And UPDATE: The machine also has a secure TPM crypto chip in it, nice!
run o&o shutup, you can disable alot more of that windows 10 rubbisch telemetry
Would resetting the PC from the recovery/startup options work? That options leaves the OS but deletes all user data.
EEVblog or you’re raiding the “eviction” dumpster in your business park.
@@Damicske Nope, you cant, suricata still picks it up even if you disable everything.
@EEVblog Install that junk without internet and it will allow local account.
The power connector has three connections: Vcc, Ground and Sense. Sense is the middle connector, ground is in the two contacts you already identified. The Vcc contacts are facing the ground contacts on the middle plastic part. They are a bit hidden.
These Lenovo chargers are not smart. They have a specific resistance connected between the sense and ground so the device knows how much power it can draw or if it wants to run at all.
@@EEVblog Yeah, that's what I said. Ground are the two outer contacts and the Vcc contacts are attached to the middle plastic part and facing the ground contacts.
@@EEVblog The diagram you showed was technically right. The VCC is pointing to the contacts on the inside of the connector and the ground is the outside of the connector. superuser.com/questions/1246823/lenovo-trim-yellow-rectangular-power-adapter :)
@@EEVblog You were looking at a Lenovo Laptop some years ago i think? or some other Lenovo product, it used their old style of power plug but it's the same deal, and it also caused a headache for you there.
I had another look, and yeah, it's almost impossible to see those inside contacts. That makes bodging something really hard.
EEVblog That looks a lot like the lenovo thinkpad laptop charger connector. Edit: I see you already found that out
*attempts to hack the user password*
Lenovo: I'm sorry Dave, I'm afraid I can't do that.
Dave , open the B(ack) door ..... I am sorry HAL, I cannot do that .
Kon-boot: Challenge accepted.
th-cam.com/video/qDrDUmuUBTo/w-d-xo.html
@@wolfz9146 very bad english , I have , I was thinking all my life is the "B" door , and not the bay ... funny
left a comment but, check out PCunlocker . bootable tool you can put on usb and get access to change any user password and make them local and stuff. Great for dumpster diving.
I wish I had one of those Magic dumpsters
No kidding, can't even find deals on stuff this modern on local classifieds most of the time where I am let alone for free.
If I had access to that dumpster room ....
Well, let's just say finding a home for things would be my challenge - and one of those things would be me.
If I had access to that dumpster room I'd have a side hustle in used PCs and test gear on ebay -- no foolin'.
You'd be able to make a living on all that stuff
I would install a camera to get latest updates for that dumpster.
You are trying to say you are homeless in the most confusing way or what..?
@@a51mj12 I am not homeless - but that might change if I bring more stuff home than I have already :-D
Allow me to jump in and defend this AC jack for a moment.
These rectangular jacks were originally found on the T*4*-series of Lenovo laptops as a replacement to the barrel jack.
They have a greater shear resistance comparatively to the barrel jacks of yore due to the increased soldered area to the circuit board and the reduced height, making them much sturdier and harder to rip off than a barrel jack.
These days, we have USB C, and it's all nice and standard :)
I have a ThinkPad that has one of those and the weird thing is that it also had a barrel Jack
I hadn't considered the increased soldered area but I feel like they could just as easily have made a stronger barrel connector. Like they barely save maybe 2.5mm on this construction just to make a ton of accessories useless, for a port that is electrically identical to the old one.
i dont have usb c charging on my p1 because its too damn powerful. It will charge with PD but it wont be able to reach full power without a slim tip.
@@Nukle0n they made a better barrel connector before that and it was big and ugly. the slim tip truly is the best power connector when it comes to high power draw. anything below 100w luckily gets usb C now.
I have an L390 Yoga with USB C :) loving it, Powerdelivery lets me charge via my truck's 12v and phone's power bank. Saw this on my buddy's cheapo laptop with that and honestly not too bad, better than the barrel on my old dell
4:27 ... If you look closely, the icon above the power jack shows "-" on the outer ring, "+" on the inner ring and then there's the dot in the middle for the centre sense pin.
I came here to point that out too. The icon is a correct representation! 😀
I think I'll try and use this as a large screen capture drawing tablet. My Microsoft surface is messy for this, but this has the perfect 1920x1080 screen capture area, the touch screen, and support for a 2nd monitor to use for recording monitoring.
That's a cool idea. I'm picturing it attached to something much like one of those adjustable drawing table that swings from vertical to horizontal.
For software to improve the touch usability I know Epson has a drawing suite meant for their line of IR projectors for smartboard functionality. I don't recall it being locked down given it was meant to be compatible with all the proprietary software from earlier smartboard mfgs. Thinking about it I might have to try it myself on one of those 2 in 1 laptop/tablets.
The best way to clear up space and clean Windows would be to get a USB with Windows 10 and blow away the old stuff, there will be a partition with a OEM recovery image that will take up a fair bit of space on the drive that is not needed as well. Win 10 OEM activation is all in the BIOS so no keys to worry about either.
@@michaeljames1893 I just killed the Norton Backup files and some other stuff and it has 177GB free now. Plenty.
Its probably got another ram slot on the back side of the motherboard. if you actually plan on using it, integrated graphics benefits greatly from having dual channel memory. if you have another 8gb sodimm ram stick laying around it would be worth it to throw in there.
Dave -- I know I'm being paranoid, but: computer found in the dumpster room? Might be worth a fresh install out of concern for malware/etc on the machine? Even if not done maliciously, the previous owner may have been lax about things (and Norton obviously isn't much use.) I'd personally be pretty hesitant to put any serious data on there. At least use a different password?
Came for the title, stayed for the enthusiasm! Your positivity is contagious, Dave! That little walk-through on removing the OS password was an unexpected bonus :) Keep-em comin', mate!
(enters console)
c:\override all security
Are you sure? Y
All security overriden. Welcome Superuser.
I almost can't believe they still havent fixed it though... That's about a 20yo exploit...
@@ThePlacehole Ah, so it's from the good old days, where one could pwn windows with big enough ping packet, certain vector image and just by browsing folders with links in them in general :)
Classic Windows✨
@@ThePlacehole Its not a bug but a feature
@@ThePlacehole they dont have to fix it, if you have access to the physical stuff you can do more than just removing the password or adding a user :3
well - that was a classic horror movie opener - "I've found this aio computer in the dumpster and there's nothing wrong with it!"
The shop I used to work at back in college ended up with some early aio machines and what a nightmare it was for me and the owner as the machines were such junk.
Windows exploitation with Dave, now on SECVblog
A windows 10 reinstall would have been better, the key is built in. UEIF or whatever that acronym is. When installing windows, it attempts to trick you to get a Microsoft account, but you have to keep telling it to piss off. I will be done with Windows if they ever force that.
I was impressed, but I would've just fetched and dumped the drivers onto my Windows 10 installer flash drive and done a clean install...
@@RickyX64 What "drivers", there is nothing to it. Its not like the days of old. That's why windows physical memory size is so massive, from the libraries. Either way, any real nerd would have a SSD with Linux ready to go. Also, I went to try Arch linux, turns out, its not so straight forward lol. No wonder people flex with it. I shall too.
@@Wtfinc Most newer (non-OEM) motherboards do require their network adapter drivers to be installed first :)
@@rkan2 OEM Shmo-EE-Em lol, no big deal. easy 3min job to find all, what, two drivers u would need. like u said, network, an likley touch.
Wait, wait, wait... Avast AND Norton?! BAHAHAHA No wonder you found this thrown out!
Haha agreed.... 😁
Most issues I run into in Australia with computer problems when I fixed computers was them running slow. I always discovered it was one of three issues; Windows was corrupt (and windows 10 corrupts easily), conflicting security software or bloatware, usually in the form of free software attached to downloads. Also, there is that other issue with the 2018 build of Windows 10, you literally have to reinstall windows if you want to version update past it, because it has a bugged updater.
Windows huuuh
Jerry Dodge yeah,like a finding two turds in a diamond.
@@foxdavion6865 Or the 4th one - the users browsing habits arent terribly good, and you end up removing 15 toolbars from I.E. (because they're not smart enough to use a real browser) and then wait as MBAM or similar antimalware software removes the 13,000 PUP's from the machine. Boom instant speed demon again :)
That connector is a special Lenovo one, like the big round one. They used the round one until 3rd gen und the square one until 8th or 9th gen. Since then they use USB-C.
"I'm sorry Dave, I'm afraid I can't do that."
I love that you showed off this hack. It's one of my favorites. It's funny that since the XP days, they not only didn't fix this simple hack but made it easier where you don't even need to boot from a disk or thumb drive.
The Lenovo plug has 3 connectors, the center pin, the inside of the "shroud" and the outside. The center data for the computer to communicate with the power supply, find out what model it is, etc, althought it's not a DRM thing where it doesn't work if it doesn't detect something, but this is how it was even on their old connector, they just changed the shape of it, and I believe you struggled with this on another occasion with a Lenovo laptop.
Seems like it'd been easier to just reinstall windows and get a nice clean install with none of the old user's crap.
That is what I'd do once I saw it was at least attempting to boot- wipe everything and reinstall
Yeah, though I would have been installing Linux instead. Still not quite sure how I should be organising things with multiple drives, though.
there's huge risk you are forgetting; the touchscreen drivers. They aren't standard yet so Windows didn't have them in repository. If you just reinstall Windows without checking first then I'm afraid you won't find out the screen is a touchscreen at all.
@@xponen It would seem likely that the touchscreen driver was available to download... maybe from some fancy web of sites that covered the whole wide world.
@@jmonsted you are right, it is probably on Distributor's website, but the scary thing is that the OEM might not upload their driver & configurations online instead pass it on to Distributor to upload it online. In a good example we have Intel who provides driver on their website while the Distributor customise the driver and re-upload it on their website, but for other OEM they do not provide a website for download and the Distributor might not either or just didn't update them.
The Positive doesn't actually point at the center, it points at a circle around the center, between the center and the outer circle.
Today I learned that windows password security is even worse than I thought it was.
BigJoe_Buster The only thing that’s secure from the manufacturer is Apple’s encryption at the boot level. MS just fails hard. Even their hardware bitlocker encryption is trivial to circumvent.
This type of security is always difficult though since you have physical access. On Macs, if you have physical access to get past boot you can reset the password from the restore mode without any screwing around.
@@Alexlfm Yep, all Macs have FileVault enabled by default (quite nice too, the T2 chip handles all encryption). And starting with Catalina, Macs have the same activation lock as iPhones (so if your laptop is stolen, it's basically a brick to them since it'll need the iCloud account details to reset).
Physical access defeats all security short of an encrypted drive. But with a more secure OS on the drive you'd have to boot a different OS to bypass the security.
@@hanelyp1 That will stall them for at least 2 minutes
@@Alexlfm How is Bitlocker trivial to circumvent?
You did it backwards... You forgot to tear it apart before turning it on 😁
Hey Dave - a general remark to these items & also to your laptop videos:
ALWAYS the heatpipes go dirty over the time and it's a nightmare to clean them. The ability to remove heat always lowers over time. The plates that distribute the heat from the pipe to the air are so close by - they can only collect dust.
So I suggest, if you already open such a case, remove the ventilator and remove the dust / mold between the ventilator and the heatpipe - for example by vacuum cleaner.
When ever I opened a used laptop - the heatpipe exhaust always was completely dirty.
I really had a struggle when I came across those big yellow barrel connectors on the far left at 5:04. They also have a center pin, but it was not connected in my case. There are two seperate tubes in the outer "ring" and the inner one was positive...
Most laptops connectors with centre pin are like that.
Its actually quite a nice connector, survived many years of abuse on all my thinkpads.
I got one of these machines with an i7 from the dumpster about 6 months ago! Use it every day. It’s very nice.
Plug: Tyco 2129334, Socket: 2129345, Drawings and models are available
You'll love those square connectors Dave, especially if you have any other Lenovo gear. They were standard for several generations of Lenovo hardware, before being replaced by USB-C. You can get the power adapters for peanuts from a place like eBay, or hell, you might be able to beg some if you have any local enterprises that use Lenovo gear - they'll have totes overflowing with them!
edit as I watch the video: Yeah, they're bidirectional and can be inserted either way.
That "GC-0700 (Samsung)" marking is showing what plastic the mold is intended to be used with. There are several vendors making a "GC-0700" ABS/PET mix, but they have some variation in characteristics and so for the best part quality you want to run production using the same plastic the test shots were done with.
"NSA Spy enabled" got me 😂🤣
@Dave instead of 'hard shut down', at the login screen, you could connect a keyboard and mouse; click on the power icon, hold down shift on the keyboard and click restart.
On how I screamed… Apparently on some cheaper Lenovo laptops the center (ID) pin is connected directly to superIO and putting 20V across it kills it.
No zeners, sidacs or suppressors???
@@watchmakerful Nothing, just straight trace to SMC, I blown one myself. Fortunately new preprogrammed chip was just $15 or $20 delivered.
That is what happen to me I guess, did the same like Dave with a lenovo laptop (with same connector) and a smoky smell arose. Be careful kids. ;-)
Excellent find, congratulations! I still use 10 year-old processors with excellent performance, let alone something so new like this. It is quite hard to understand how this would end up in a dumpster - hopefully it is a simple case of novelty that wore off. That or venture capital that flooded towards one of the startups/companies of your building.
If it wasn't for Windows 10... :D
What's wrong with Windows 10?
Esse Vbe tá em todos os lugares, KKK
Nothing, if you don't have a computer.
Windows 10 is fine, but please keep on using unsafe 11 years old Windows 7. There's other OS if you don't wanna be part of Microsoft's rat race.
@@Nukle0n more safety is Debian than bloody Windows.
Reminds me of when I scored a HP Color Jet CP1515n printer with half-full toner cartridges during a roadside council-cleanup. The printed image in colour was not entirely spot even after re-alignment procedures. Somehow, two years after hefting it home, the alignment came good, so it really became wiinner-winner-chicken dinner fodder.
PSU tips are available for laptops to convert older Lenovo DC barrel connectors to that rectangular style - or at least look very similar. They're only a dollar or so. "Thinkpad PSU plug " would be a good search term to try in Ebay - but carefully sheck the pics to make sure it's the same.
I really like how you patched that modular synth system
Note for non-Australian viewers: "Gone Walkabout" is an Aussie expression for going away for a holiday/vacation. It has its origins with the habit of some Australian natives of working for a while then wandering their traditional lands for a while before perhaps coming back to work some more.
Thanks dave for peeling the protective covers off. I was starting to sweat and shake while I watched.
If you are reselling, it is MUCH better to leave them on. Same as factory screen protectors on multimeters, etc. It's there to protect the screen, so let it do it's job.
that unit uses a 20V adapter. the center pin is a identifier pin.. which uses a resistor in the plug to determine the wattage of the PSU 65Watt = 285 Ohm to ground 90Watt = 548 Ohm to ground.
Also wanted to note... putting 20V into that center pin you take a 50/50 risk of blowing the sense circuitry
Damn, it's April already??? How time flies eh? :P
That was pretty cool. I dumpster dived a Windows 7 medium tower PC about 4 years ago that was sitting on the side of the road by a used car dealership. It worked fine nothing wrong with it at all, I didn't even have to bypass the password as it was totally unprotected. I slicked the docs, added me as administrator and deleted the other users. As you say, "In like Flinn". Ok what does that even mean dave?
Thanks for sharing it was fun.
- Oh here's a novel business idea for you folks in huge complexes. Go to the companies and offer to sale their old equipment for 10% of the sale price. They don't have to lift a finger. If they don't want to do that, sneak your request to the person who dumps their trash. You'll get the latest junk without missing a thing. Best Wishes & Blessings. Keith Noneya
The video title should be "How to hack into a Windows 10 computer"
In the U.K. people steal stuff and quickly put it in a bin, so that they cannot be stopped with it if the police are quickly on to the theft. They return later to collect the item when any police activity dies down. This happened to some carpenters working at a mates house... their tools were taken from their van, but they were quickly found by searching nearby bins... and apparently a bloke on a bike nearby was looking a bit pissed of they were found.
10:48 even with Windows 10 Home 1909, just click "I don't have internet" and it'll let you make an offline account ;)
He should have fresh installed... More effort bypassing the password.
@@PaftDunk no, he doesn't have the factory default driver for the touchscreen and the pop-up camera, it would render them useless or function inappropriately.
@@PaftDunk For sure, plus you don't want all the previous persons garbage software on there and who knows what viruses/malware is hiding on it. Boot off Windows 10 USB, diskpart, "clean", install. Done. Clean.
@@xponen That's not too hard to fix: either the drivers will be fetched through windows update, or a simple search for the model number will bring you to a page where you can download them.
@@VisibleReality Window updates did not and will not include the driver's OEM tools used to configure the driver, eg: for calibrating Windows tablet's sensor, such as orientation (up down left right). Also a Touchscreen driver have same name but different resolution depending on model being used on; eg: the difference in resolution, the place to put OEM button for tablet. In camera devices there's also variation; like an Imaging system is host to a modular camera with its own driver, better install the right one in sequence.
Welcome back Dave, good to see you back on it. Looking forward to the fence controller diagnosis and fix, interested to see what kind of voltage and (milli?)amperage it kicks out.
I cannot believe someone would throw that out, it's really nice! Damn throwaway society is ruining the planet.
...and unfortunately that "Damn throwaway society" is running the planet.
@@DejanTesic Soap opera! I use to do that on some live seminars. This guy is full of it!
There is an more easy way to get in recovery mode, when you are at the login screen hold SHIFT an pres on the Restart button hold shift until you are in recovery
I usually use the regedit trick instead, you plug a Win10 recovery USB stick into your PC (really just the standard Win10 installer), boot up to it, press 'shift+f10' after going a couple of steps in, type 'regedit', load the c:\windows\system32\etc\system.dat hive into the registry, and change some stuff, basically this: winaero.com/blog/reset-windows-10-password-without-using-third-party-tools/
Really handy thing to do, either way works though.
Ray Herring reminds me of the day when Win2K could be bypassed by an original boot CD, which was patched. How life has come full circle, eh?
I bought my missus one of those machines early last year. It's been a great machine. I'm sure Mrs EEVBlog would enjoy it.
"I don't have the proper power supply for this, lets jam wires in it's butt" :D
That's a pretty standard Lenovo plug, used on a lot of their laptops.
Yesterday I felt lucky when I found a Casio fx-82 in a dumpster....
Dave, look closely at the barrel jack pictogram. It clearly shown that the powered terminals are outer shell, inner shell and not the center pin. The big-ass DC-jacks in your assortment is the same. The big hollow casing is co-axial and the center pin is not current carrying (it's too thin)
Thanks for the password reset cmd tip. That's exactly what I needed today for a laptop and it work the first time, unlike yours witch had a Microsoft account :)
That command prompt "hack" /exploit was fantastic. XD "Defense in depth", Microsoft might have once had an uncle who may have had a dog, who might have heard of it.
17:53 -- "And yes, I really do find this stuff in the dumpster! I have to keep saying this!"
A few years ago you made a video about a $250k Oscilloscope you'd "found in the dumpster." When I asked you whether or not it was actually some kind of "wink wink, nudge nudge" promotional video for the manufacturer, you outright called me an idiot for thinking it was _ever_ even possible that you _could_ have found something like that in the dumpster, implying everyone is just supposed to _know_ when you're showing a legitimate dumpster diving score versus a product some company offered to send you for a review that you knew would make for a good video (which, in my opinion, is a wholly valid reason to make a video -- if the content is good and you're honest about its nature, why shouldn't you make a little extra money). Naturally, after you said something to me, I got literally hundreds of comments from people calling me stupid, openly wondering how I'd survived long enough to ask you that question.
Now you're here saying, _"Yes, I really do find this stuff in the dumpster! _*_I have to keep saying this!"_*
You're a brilliant person, Dave, and you make excellent content, but you _know_ why people question the legitimacy of content like this.
Congrats on the new PC regardless.
That was April's Fools Day
Just check the date. If it's April 1st (or March 31st in the western hemisphere) then you can assume that it's bunk. Personally I hate April fools jokes but I don't resent others for having their fun.
That's a cool workaround to get command prompt/superuser access
Man, I wish I could find the dumpsters you dive in... Geeez
The machine i'm using now was tossed curbside (in the snow!), the original hard disk was infested with malware (the reason why it was thrown out), so formatted it. Since I don't use windows regularly, I just put linux mint on it. Quad core, manufacturer said it was 'limited to '8GB RAM' however, now it's got 24GB. Turns out said limits are hogwash. It was made around 2009, 11 years ago.
Works with the latest windows 10, works with any open source software distribution.
I don't need this computer but I'm still jealous xD
Dude I still use a 4th gen intel CPU in my machine and I cherish it like a treasure
@@gez_4515 I have AMD Ryzen 3700X and RTX2080Ti
@@Arek_R. good for you. I have an i7 4770k, and an RTX 2060
@@gez_4515 Well, i7-4770k and RTX 2060 is pretty plentiful for 1080p gaming usage. So, Good for you too mate!
@@kgh0010 tbh I ordered a 3800x 2 days ago xD
I've supplied Lenovo's for years and on the whole found them to be robust. Nov 19 I replaced 5 AiO's for an office supplied back in 2012. Only reason for the replacement was the FSB wasn't fast enough to justify an SSD (had gone to W10 and did a test). The AiOs are being sold on as they are still good enough for light / domestic duties.
Why go through all this complicated renaming of the files, when you could just reset PC to the factory condition through that same troubleshooting menu?
To see if there was any data left on the device such as a crypto currency wallet or something else
Hackermen
You read the label on top of the power port wrong.
The negative goes to the "C" , to +ve goes to the "Circle" and the center dot is not connected to anything.
Yep he didn't look...Plus even if he did i doubt it would have started with that 100 ohm in series...
Daves new years resolution. Become an expert windows computer hacker :-P
LOL, that's about my limit.
Dave, that's not a positive center icon. For 2 wire power you'd have an icon with a solid dot in the center. What this icon indicates (and I agree the icon doesn't match the jack) is an outside shield negative an inner ring positive and a center pin. This is similar to the Dell power jack for laptop, which also has a center pin to indicate power pack power available.
What a scavenger! I love it. :-)
No need to fiddle with 3 power off during boot to get into recovery. Simply power it on, then on the login screen click reboot while holding shift.
Wow you just found great PC with 23" monitor. Great.
I don't know how dumpsters everywhere have computers, TVs, game consoles, almost everything you can find at an electronics store while all I see in the dumpsters around me are rotten peels, plastic bags, used diapers and all that rotten shit, plastic bags, styrofoam, etc...
The only things other than that are old broken CRTs which people have already "stolen" the yokes from the picture tubes and their power cords.
Don't forget to put cmd.exe back :-D
Алексей Рукин should have used the copy command instead of rename. Microsoft’s next update will check hashes of executables and block those not originally installed.
take out the fan and clean the heatpipe fins, they usually get lint there
reason for throwaway was probably Norton license expired :)
Nice seeing a TH-camr that's still has appreciation for things not like some that destroy good stuff for no reason
yeet "published 1 minute ago"
edit: the hdmi port might be an input, have seen a lot of AIO pcs that double as an external screen for your laptop or other device
That's true. The HDMI port on many AIOs is more often an input, rather than an output. It means you can run two PCs but use the same screen for both. There might be a selection for the HDMI input in the setup - Internal/External/Auto. Some people prefer to do that rather than run a virtual machine for the second platform because it's technically a lot easier, plus it can also be handy for occasional use stuff like a media box or a R.Pi.
Only AIOs with quite a decent graphics sub-system will have an *output* capable of running a second screen - higher end Asus etc.
My college has some Dell AIOs from about mid 2018/2019 and on the back there is a HDMI connector for input and on the side next to the brightness controls is a button to switch the display input so its more likely that the HDMI input is so that the PC can be used as a secondary monitor when the PC becomes outdated. It may also be that Lenovo (or any other manufacturer of AIOs) just take a generic display panel that they would normally be using in a standalone monitor and then integrate its controller board into the PC's Motherboard and the Windows Operating system in order to lower cost which is probably why almost no AIOs have any Linux Drivers or at least to any of my knowledge.
It's both an input and output.
To reset passwords there are multiple bootable ISOs out there. You can put them on a Ventoy drive and directly boot them. By doing that, you don't have to change the file names.
I know the reason for throwing it out: screen is little bit dusty.
The smoky forest blaze which launched a thousand PCs.
Shift-F10 is a good key combination to press. It opens a shell in the setup, probably in the recovery too.
Dumpster dive pc that isn't 25 years old. Why doesn't this happen anywhere but where famous youtubers live?
o0julek0o if you know someone who works at a dump or an electronics recycling centre... people dump some insane crap. I live in the country and a nearby tip got an electrician I know to test a bunch of electronics they wanted to resell. Including an I9 a bunch of laptops and PCs from the last few years and a Gas Chromatograph which still sells for $20000 on ebay.
They also had a bunch of workshop equipment and pretty much the only thing that failed was a 3 phase welder. Everything that passed worked. As far as I know They just chucked any storage on the computers and their office computer which was running Windows XP is now a fancy I7 all in one so I suspect they found uses for everything they didn’t want to sell.
Holding down shift key while clicking 'restart' will also reboot to recovery options
It's definitely broken, it's infested with some sort of malware called windows 10. Luckily, the fix is pretty easy, you just need to install Linux on it.
The plastic middle of the power socket has the positive on the outside edges and the center is data if you put your glasses on and look close.
fastest I've clicked on a video in a while :)
Looking at the stats after release, I actually haven't seen this many views per minute in a long time.
David just happens to live in some kind of game where dumpsters are actually a magic place where all kind of hardware just spawns like in a game.
Nice score!, you can actually go into Windows Advanced mode by holding down shift and click power button on windows login and restart the computer, hold down shift, you don't have to start computer 3 times :)
This video reinforces my support for all laptops to come with at least a USB-C port as a standard charging port.
That power connector is the same one that Lenovo uses for their laptops. It's actually not so bad when you consider it's standard across their hardware ecosystem.
Incredible. For next Christmas I want a dumpster like Dave's.
In Windows 10 Home setup there is a way to NOT use a Online account.
Option 1) Disconnect LAN cable before the dialoge window about user accounts show up, now you can use a local account.
Option 2) type 1234 where it asks for email adress/username. It will trigger 'activation by phone' but also displays the option for an offline account
"It's got speakers, it's got core i5 7th gen, it's got USB, it's got Ethernet". You left out that it probably has a BIOS supported root kit too! Lenovo was found to be putting root kits in their BIOS so you can't prevent or remove them, thereby giving them a backdoor into your system.
I came to campus one morning with a homemade big ass powerbank that could charge laptops. I took a look at my friend's lenovo and figured "alright 19V center positive". It fried the entire computer immediately. Turns out the center pin is connected _without so much as a series resistor_ to an analog input on the chipset. You have no idea how lucky you got
You can also get into system recoveryby holding down shift whilst clicking on reboot in the power menu on the logon screen
just curious what do you do with all the computers you find?
Very nice demonstration of "if you have physical access to a machine, you own that machine"
That guys is addictive, really like his videos and enthusiasm.
Actually that symbol on the back shows two rings and a center pin. The outer ring is negative, the inner ring is positive and the center pin isn't connected. The PC should turn on but show a warning about a mismatched power adaptor without the center pin.
The original owners probably had a power supply (cable?) crap out and although it apparently could produce the 20v, the power good signal pin actually didn’t have any connection so they never suspected the PC itself to be unaffected.
Mrs EEV blog: Honey it's our anniversary, what do u have for me?
Dave: Dumpster Score Baby!!
You can also change passwords using a bootable Win 10 USB stick then also use Ease of Access. It's pretty much the same thing only it gets you to the command prompt faster.
The power connector is from 40-series ThinkPad. T440p brick might worth with that.
Those jacks are more robust than a barrel jack test, it does have a sense, The only thing these need after a few years is fresh thermal compound and a dust out - ram wise some have a single slot others have 2 with the other slot on the back of the pcb
4500 passmark for 15W is very good for 24/7.
I've been trying to find something like this for years to make a secure dedicated server rack terminal / monitoring frontend.
Unfortunately can't find anything inexpensive.