The mosfet is a P-Channel. I repaired one today. The shorted cap in my case was near the hdmi ports. If you place a N-Channel the pc still works because of the internal diode of the mosfet but you see the 0,6V drop source/drain.
It would've been nice if you'd replaced that cap, it was right next to a power supply. In the future that PSU may fail. Probing with an oscilloscope on a PSU input without the input cap mounted you can observe big voltage spikes like 5v in magnitude. (depends on PSU PWM frequency). Those spikes are attenuated fast on the rail after a distance of 3-4cm of cooper track but it will harm that local PSU, or analog audio amplifier if is somewhere near by. Having an oscilloscope can make you understand that no cap is on a board for no reason.
Thank uou fir this video, for mine just last night i noticed the 2nd HDMI port stopped working, the one futher away from power port, no signal 😢, please what can i do, i got this March this year
Okay so gaming can wear it out? I have one with eGPU setup, adapter through nvme2 SSD slot, extra PSU for the external AMD 6600xt. It is now having trouble starting up, may take a couple minutes of jiggling with the ac adapter
You can pretty much do it without an egpu, as long as you make concessions. I'm currently enjoying Cyberpunk 2077 on mine: low/med settings, 1080p, locked to 30 for smoothness. It actually looks quite nice, and plays surprisingly well.
Daaamn, I can't find out how to disassemble similar mini pc correctly. Came here to check it but this part is skipped and characterized as painful. Any tips?
Hi Sorin. I have an x60s and got a fan error, laptop turning on got picture... But I dont have original heatsink and fan because I destroyed them in a DIY project and its expensive to replace. Problem is I tried multiple fans from multiple laptops allingning the pins exactly with original. Coolers are working but still got that error and laptop shuts down. You think they have a chip on original cooler that communicates with the motherboard? Preventing me using other coolers?
My Minisforum UM790 Pro overheated after 15 months of heavy use. I saw sparks come from the side. I am making a possibly futile effort to get help from the company.
This video is confuising me. I've been working with this motherboard for about 3 days the board is shorted and the second Imput mosfet was dead, same as Sorin video, so far I can't find the shorted component because unfotunatelly I don't have a thermal camera, so I'm still dropping almost a botle of alcohol on it with no luck so far. But what is driving me crazy is that the Imput Mosfets from factory are TPC8031 which according with the data sheet they are N CHANNEL Mosfet and I get 4 Volts at both gates after I replaced the second one, but I'm undersanding that Sorin says they are P CHANNEL MOSFET 😒
It is P channel (is a Chinese FET). Gate voltage is measured between Source and Gate. Having 19v on Souce and 4v on the Gate that means the gate voltage is -15v. If it was a N channel, on the gate should be around 24v for TTL level N channel FET(24-19=5v), and 31v for a normal N channel FET(31-19=12v).
Thank you, teacher, but those 1st 2nd mosfet are going to take me crazy, every time I say I understand them, and now, the mosfet is getting hot because it is good, and those 24V at the gate 😅
In a circuit the part that have the biggest resistance it will get hot. Normally a FET like that has an internal resistance of about 0.05 ohm. The second FET being shorted he injected 19v on the FET's driver and this in turn raised the voltage on the good FET gate raising his internal resistance. (being a P channel). And for the part with 24v, Sorin though that the FET is a N channel. Voltage of a FET gate being measured between Source and Gate, and for a N channel TTL it would've been 24-19=5v. In reality it was a P channel: 4-19=-15v (negative voltage)
@@stefanputureanu9296 where's the -15v ? He measured it was like 4.7V . Please explain why the voltmeter showed 4.7V instead of -15v, also does FET stand for Mosfet or it is a transistor I understand Moset is a transistor but usually we call it Mosfet, is it different than laptop mosfet ?
Hello, I have a Minisforum NAB 6 that's experiencing a power issue. When it does turn on, it shuts off after a while-sometimes after an hour, and other times after 3 or 4 hours. It then takes several days before I can turn it back on. Could you assist with this problem? I'm located in the U.S. and am willing to ship it to you. Please let me know.
@@Trustsimo07 I bet most of the minis make noise with high loads and in hot rooms. This is why I'll choose very well, and I always consider modding to make it near silent. Is there a chance HP and DELL choose well sized heatsinks and fans to control noise? vs. other mini PC brands. There's a lot of variation in the mini pc spectrum when it comes to CPU power as well...
@@laboratorioassembler Is a Chinese one for sure, hard to find a pdf for this one. Chinese parts usually use existing part numbers but they have nothing in common with the real ones.
Doesn't matter if he did know. He is teaching people that would normally replace a good Mosfet for nothing. The one getting hot was the good one. The second one was short. And the cap was short.
What is to learn from this video? Well..... I learned if you remove a shorted mosfet the new one will just jump right in place no soldering needed, tadaaaa! lol jk I really enjoy your videos, Thank You!
The noisy fan is at the top part haha I'm a fan of passive cooling, airjets, and big silent fans. Modding is always an option, until manufacturers catch up and technology gets even more efficient and advanced. Manufacturers usually always make it smaller, so that it makes either noise and/or thermal throttles, instead of just using a decent oversized heat sink and fan... This makes more sense for a laptop, but for a mini PC? It's still about cutting costs. Silence lovers are forgotten.
of course, capacitors getting bad because they're not needed and getting bored... 🤦♂ i mean, is it SOO hard to get a SMD cap book and fuckin replace it and not being dodgy? i repair so many old boards from the 2000s with capacitor plague... maybe it's enough to just remove them instead of recap... seems the manufacturers put those components just because they have too many in stock...🙄
A pity you edited out the replacement of the mosfet as it was essential to understand in this repair it was actually a p-channel io an n-channel mosfet ! You probably first fitted an n-channel and it was not working. Please also replace the capacitor, it is there for a reason! Goodbye...
Nice repair and saving the customer's pc.
The mosfet is a P-Channel. I repaired one today. The shorted cap in my case was near the hdmi ports.
If you place a N-Channel the pc still works because of the internal diode of the mosfet but you see the 0,6V drop source/drain.
Engineers like you are rear. Usually people throw away those. Thank you for sharing
Thank you very much our teacher SORIN. thank you for all
great video sorin and a lot of useful info for us laymen .....
It would've been nice if you'd replaced that cap, it was right next to a power supply. In the future that PSU may fail. Probing with an oscilloscope on a PSU input without the input cap mounted you can observe big voltage spikes like 5v in magnitude. (depends on PSU PWM frequency). Those spikes are attenuated fast on the rail after a distance of 3-4cm of cooper track but it will harm that local PSU, or analog audio amplifier if is somewhere near by. Having an oscilloscope can make you understand that no cap is on a board for no reason.
Generalissimo Sorin sending poor capacitor to the gulag 😪
In the next video, part 2.
Normally he replace the cap with Apple 🦆 one but not in this video 😊
Would you need to identify the capacitor? Schematic etc
@@Dohcoms A 10uF from any laptop main power rail will do.
It's a really capable light gaming machine too.
Great video!
Nu trebuie inlocuit si condensatorul mic?
Sorin, thank you for the video! Can you please share the exact types of the replaced components? Thx!!
he dont reply, very sad
i learn alot from you. Thank you
I need to replace that exact same mosfet. What part number do i need to buy?
❤I love this man , your very interesting, and hard working, thanks for your hard work buddy 👍.
Thank uou fir this video, for mine just last night i noticed the 2nd HDMI port stopped working, the one futher away from power port, no signal 😢, please what can i do, i got this March this year
Nice one sorin❤thanks for sharin
super merci
So good I watched it twice
Sorin saving caps for future 😂
Très bien !
Good job mate 👍
Okay so gaming can wear it out? I have one with eGPU setup, adapter through nvme2 SSD slot, extra PSU for the external AMD 6600xt. It is now having trouble starting up, may take a couple minutes of jiggling with the ac adapter
Nice one Sorin ❤
Very good job
I bet you can game off that if you use the PCI card to a video card. Probably work fairly well
You can pretty much do it without an egpu, as long as you make concessions. I'm currently enjoying Cyberpunk 2077 on mine: low/med settings, 1080p, locked to 30 for smoothness.
It actually looks quite nice, and plays surprisingly well.
When I use the a working correct power pack it doesn't work when I use a lower power cable the blue lights up can u help or can I post it to you
Daaamn, I can't find out how to disassemble similar mini pc correctly. Came here to check it but this part is skipped and characterized as painful. Any tips?
did you ever find anything to help you remove the board? I need help ASAP
@@therhetorician4683 kind of a lame video without the board removal instructions.
Hi Sorin. I have an x60s and got a fan error, laptop turning on got picture... But I dont have original heatsink and fan because I destroyed them in a DIY project and its expensive to replace. Problem is I tried multiple fans from multiple laptops allingning the pins exactly with original. Coolers are working but still got that error and laptop shuts down. You think they have a chip on original cooler that communicates with the motherboard? Preventing me using other coolers?
Hi.. can you please provide the details of the MOSFET which was replaced
I admire your repair and diagnostic skills, but it bothers me that you never bother to replace fuses or capacitors.
I wonder if they plugged in the wrong power plug and caused that failulre.
My Minisforum UM790 Pro overheated after 15 months of heavy use. I saw sparks come from the side. I am making a possibly futile effort to get help from the company.
Sir can you teach me exactly how you open it?
how do you remove the board i struggle with it
Good job...
Come to Besiktas,Sorin...
This video is confuising me. I've been working with this motherboard for about 3 days the board is shorted and the second Imput mosfet was dead, same as Sorin video, so far I can't find the shorted component because unfotunatelly I don't have a thermal camera, so I'm still dropping almost a botle of alcohol on it with no luck so far. But what is driving me crazy is that the Imput Mosfets from factory are TPC8031 which according with the data sheet they are N CHANNEL Mosfet and I get 4 Volts at both gates after I replaced the second one, but I'm undersanding that Sorin says they are P CHANNEL MOSFET 😒
(TPC8031) Is this the n channel mosfet that he replaced? I got little confused at the end, P or N Channel?
N I think
It is P channel (is a Chinese FET). Gate voltage is measured between Source and Gate. Having 19v on Souce and 4v on the Gate that means the gate voltage is -15v. If it was a N channel, on the gate should be around 24v for TTL level N channel FET(24-19=5v), and 31v for a normal N channel FET(31-19=12v).
Salut Sorin, scuze de interventie, dar se aude un "tziuit" in fundal, poate ai poti sa remediezi in video-urile viitoare. Mersi !
nice one!
Yeah, thanks for showing us how to take the board out of the case that was very informative😠
Thank you, teacher, but those 1st 2nd mosfet are going to take me crazy, every time I say I understand them, and now, the mosfet is getting hot because it is good, and those 24V at the gate 😅
In a circuit the part that have the biggest resistance it will get hot. Normally a FET like that has an internal resistance of about 0.05 ohm. The second FET being shorted he injected 19v on the FET's driver and this in turn raised the voltage on the good FET gate raising his internal resistance. (being a P channel).
And for the part with 24v, Sorin though that the FET is a N channel. Voltage of a FET gate being measured between Source and Gate, and for a N channel TTL it would've been 24-19=5v. In reality it was a P channel: 4-19=-15v (negative voltage)
thank you very much @@stefanputureanu9296
@@stefanputureanu9296 where's the -15v ? He measured it was like 4.7V . Please explain why the voltmeter showed 4.7V instead of -15v, also does FET stand for Mosfet or it is a transistor I understand Moset is a transistor but usually we call it Mosfet, is it different than laptop mosfet ?
64 gigs of ddr5 wow
Ryzen 9 what a beast
But not powerfull as you thinking
@@NvArya why?
Removing a cap with hot station......it's a good sign, instead of snapping with tweezers, so lets hope to it back some caps LOL......hmmmmmmmmm😊
Hello, I have a Minisforum NAB 6 that's experiencing a power issue. When it does turn on, it shuts off after a while-sometimes after an hour, and other times after 3 or 4 hours. It then takes several days before I can turn it back on. Could you assist with this problem? I'm located in the U.S. and am willing to ship it to you. Please let me know.
👍👍
wow, that was Ryzen 9? amazing
I don't think it's silent, it's got a fan on the back :)
Those mini pc are very silent, I have 3 HP prodedk 2 i3 and 1 pentium Gold, there have a fan and can’t hear there fan at all.
@@Trustsimo07 I bet most of the minis make noise with high loads and in hot rooms. This is why I'll choose very well, and I always consider modding to make it near silent.
Is there a chance HP and DELL choose well sized heatsinks and fans to control noise? vs. other mini PC brands. There's a lot of variation in the mini pc spectrum when it comes to CPU power as well...
How can I fix a Lenovo yoga 11e can not turn on bt it show blue light on the fn button and f1,f4 show red light
👌👌👍👍
Does anyone have any idea what MOSFET code he used?
My UM690 died the same way. Hoping Im still within warranty. Cant access any of my data. Frustrating
Sorin next time check short between gate and drain of the mosfet.
ahhh sorin we want wire on that mosfet, we dont need that mosfet
🥰
How come you already had replacement mosfet?Which means you knew about faulty component before vid :D
Every P channel FET from any laptop will do 😉
@@stefanputureanu9296not common P channel... but probably can be found on some donor board
@@laboratorioassembler Is a Chinese one for sure, hard to find a pdf for this one. Chinese parts usually use existing part numbers but they have nothing in common with the real ones.
Doesn't matter if he did know. He is teaching people that would normally replace a good Mosfet for nothing.
The one getting hot was the good one. The second one was short. And the cap was short.
What is to learn from this video? Well..... I learned if you remove a shorted mosfet the new one will just jump right in place no soldering needed, tadaaaa! lol jk I really enjoy your videos, Thank You!
The noisy fan is at the top part haha
I'm a fan of passive cooling, airjets, and big silent fans.
Modding is always an option, until manufacturers catch up and technology gets even more efficient and advanced.
Manufacturers usually always make it smaller, so that it makes either noise and/or thermal throttles, instead of just using a decent oversized heat sink and fan...
This makes more sense for a laptop, but for a mini PC? It's still about cutting costs. Silence lovers are forgotten.
I love the LOL
Hello🤝👍👍👍👏👏👏👏👋👋👋👋👋
Can I cut the bottom? I'm sick of all of these mini screwdrivers lol
There is no hot glue or proper calibrated wire. Unlucky day.😀
scared me when you popped off the CPU cooler...all that liquid metal cooling....they've had a bad time of that oozing all over the place
There is some kind of beeping annoying sound in the background.
Noice
A nice fix, couple that to an external graphics card and if bought cheap faulty a bargain
What causes these failures? How to avoid them? Build your own instead of made in china no brand MB's?
The only benefit of a mini pc is that it is small.
of course, capacitors getting bad because they're not needed and getting bored... 🤦♂
i mean, is it SOO hard to get a SMD cap book and fuckin replace it and not being dodgy?
i repair so many old boards from the 2000s with capacitor plague... maybe it's enough to just remove them instead of recap... seems the manufacturers put those components just because they have too many in stock...🙄
A pity you edited out the replacement of the mosfet as it was essential to understand in this repair it was actually a p-channel io an n-channel mosfet ! You probably first fitted an n-channel and it was not working. Please also replace the capacitor, it is there for a reason! Goodbye...
Maybe he takes a lot of time looking for same MOSFET . So he forgot to record it.
Still more upgradable than a Mac - lol -.
How do you remove the board ive been trying to fix my pc but the power button doesnt work