IBM PC/AT Model 5170: Saved from the trash 🔥
ฝัง
- เผยแพร่เมื่อ 25 มิ.ย. 2021
- The (in)famous IBM Personal Computer/AT Model 5170 was released in 1984. The 5150 may have kicked off the PC revolution and setup the architecture still in use today, the 5170 is the machine that really established what we use today. (With its 16 bit extensions to the architecture.) In this video, I took a look at this rescued machine and see if it even works, then go through and test out all the internal adapter cards. That happens with a little bang!
Part 1: This part
Part 2: • IBM PC/AT Model 5170: ...
Part 3: • IBM PC/AT Model 5170: ...
Adding 256k to the IBM EGA card:
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Hardcard Plus 20 Failure Analysis:
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It’s worth watching Adrian's videos just for the 'feel good' factor. If he has a success you share his excitement, anything blows up and you join in with his laughter.
50:12
"At least the computer will turn on now. Let's see what happ...."
The fact that a really experienced youtuber who does incredibly complicated repairs on CRT
"Yeah, I'd eat it if my blood sugar was low" -
I've found that you should leave the machine running with the hardcard installed and the Plus bios will often perform diagnostics in the background for a long time and get the drive working. I had two that I thought were dead and randomly left one running in the machine when I got distracted and returned much later to find it working. I did this with the second drive and had the same result.
"Alright, it's time to see if this works."
Well this was fun! A story about stiction. For Y2K we had to vet the ANCIENT PDP-11 that had been running the radiology department of a rather large hospital for DECADES. It was on all the time because it was so mission critical. That prevented an upgrade. We had to move the computer to a new location in the hospital, and were very loath to turn it off. So the computer and its backup power supply were put on a gurney and rolled to the new location while it was still running. Yes, bearing freeze from stiction is a very real thing.
The "ethernet" card is not actually ethernet, it's a 3270 emulation card, used to connect to IBM mainframe systems (S/360, Z/Series, AS/400 and such)
I can see this video really blowing up!
Who the hell dislikes charming content like this? It boggles the mind!
Tantalum capacitor: I have become death, destroyer of worlds.
I have one of those Hard Card 20 in my Ericsson Pc from -84. And I have to spin it manually on the inner disk with my finger to get it going! Haha.
I remember buying these new and working on them prior to sending them offshore. They only ran one piece of software on DOS 24/7 taking data from the drillfloor and presenting it to the Toolpusher in his office.
When I first started work (it was January 1988) my company had a PC AT in a locked room access only by an elite group of accountants and engineers. At night you could see the ATs eerie aura from the open office area. Ghostly.
Stiction is indeed the right term. Back in the day, we'd have to pull and drop the drive cages onto a bench (from 5 or 6 inches) for RS/6000s to combat stiction from drives that were off for too long (or after they'd cooled off after running 24/7). Our IBM and HP service people also used the word.
Saturday night, and one hour of
Adrian's Digital Basement is just perfect :)
That "network card" with the BNC connector looks like it could be a 3270 emulator card that would connect to a D/T 3274.
Is "It Freakin' Works!" a t-shirt or sticker yet?
The hardcard disc Sounds like the wheel of fortune when it spins down