fixing a gpu...like putting your hand in side the mouth of a lion..my thoughts..it needs very patience and stable mind..you did it because u are that brave..keep it up.
Hi Anna, This is an amazing video. So educational and incredibly interesting. I'm surprised you don't have more views on it. Also, was saddened to hear you had to go through a serious medical issue. Hopefully all is good now but please take care of yourself. Looking forward to the next video. Thanks!!!
I wanted to thank you for this video as I have a gtx 970 that has done the same thing and working on it. I took tons of heat. Keep up the videos and thank you once again.
Yes to both. It is the NCP81062 driver and I tried to remove the bottom inductor to get better access for the voltage mod but it cracked before I was able to desolder it so I gave up and glued it back together. Forgot to mention it in the video.
I have a 970 with a similar burned mosfet… was unable to fix it! If you have any interest I would be happy to send it to you as either a donor card or for you to try and fix! Interesting video and definitely a tough repair!
You can send me a Mail and we can talk about what you did so far and I might be able to help so you don't have to send it. If not I'd definately give it a try myself. physicistanna.yt@gmail.com
Hi, i dont know if you noticed but the last choke from up to down has a crack. Maybe thats a cause for the coil whine or maybe even power draw in 1 single connector.
I have a short in the power connector. But all the MOSFETs are checking out good. What else could it be? I am a noob so forgive me if I am lost. Gigabyte GTX1060 6GB died when lightning hit my home and took out a handful of electronics.
Hi Anna , I have GTX 1050ti mini 2gb. Now it's not working and when I check up9509 is getting hot , pgood pin has showing 3.3v ....what can be wrong here ??
Apologies but I fail to understand the power reading issue. GPU-Z can show PCIE power, 6pin power and 8pin power. PCIE draws 75W but then what's going on with the 150W extra? What does two power rails mean, taking power from the 6pin and 8pin?
Hi Corvus, thanks for your comment. So GPU-z displayed 75W from the pci-e slot which is totally fine and withing spec. However GPU-z also displayed 150W on one of the two 6 pin power connectors and 0W on the other one. For one this power draw is way too high which made me not completely trust the reading at this point and the 0W draw on the other 6 pin power connector made it worse as I expected it to work. Two of the four power rails going to the GPU (each "rail" being a synchronous buck converter) are connected to the first 6 pin power connector and the other two to the left 6 pin power connector. There are two issues at hand here, for one a power draw that was way out of spec and two no power draw on one of the 6 pin connectors which I assumed worked. In reality the 0W reading was true but the power draw I still can't explain. In the end a simple swap of all mosfet drivers would have resulted in the card being fixed. Preparing for the last video I made a mistake setting up and I bricked it. I don't know how or if I should actually make another video as it now does no longer work. The power delivery does work but the chip is destroyed, I am so sad.
@@PhysicistAnna Hello Anna, I'm sorry this reply took so long. I just finished repairing my own 970 after watching your and other similar videos, they were very helpful and I'm very appreciative for the effort! The issue seemed to be the same, a faulty driver that burned a mosfet; replaced both. Sorry to hear about the way your project ended. What made the chip brick? When I test my GPU I will give an update on the situation.
I currently have an AMD RX 5700XT which doesn't provide a video signal. When booting from the integrated graphics the card does show up in Windows device manager but upon installing the AMD driver the system just freezes either during the installation or during the bootup after the installation. The card gets warm and fans do start to spin so i don't think it might necessarily be a power issue. I was able to reflash the BIOS a couple of times but to no avail. I'm now wondering if the actual GPU chip might be broken or it might be another component which might make this card repairable. I'm just not 100% sure what to look for.
Sounds like you did not properly reinstall your drivers. Just to deinstall and reinstall in windows doesn't help. You need to boot into safe mode and use a specialised programm to get rid of all drivers and their leftovers. After that a normal install should solve the issue. However by flashing the gpu bios there is now another point of a potential failure and if reinstalling the drivers the way I described did not work it is highly likely due to your gpu bios. Bios doen't only have to line up with the card type but also manufacturer and sometimes specific batch. What I can say is that there is no physical damage that can cause this behavior.
Ad53 okay when installing the graphics card driver the windows crash or get stuck is the GPU won’t support heavy loads you may have a short on Pcie 3.3V rail just one way to find out is injecting voltage if GPU gets hot fast is one memory controller inside the is bad that’s why you still able to use as display only
Hi can u help me in diagnosing gtx 750 its nit working and check the pci connection there is a short in 3.3v pins in gpu can u tell more details where to check more
Unfortunately that's a kind of damage I don't know about. However, considering that 3.3V is used for the logic of the gpu, meaning for the main controller IC for example I'd measure if it is shorted. Otherwise it could be any of the passives used around the main controller IC. If there is no obvious, visual damage its pretty hard to diagnose. However if it's not the main controller it could be memory related. The memory has its own dedicated power delivery and maybe dedicated controller IC. Besides that there are numerous op amps that could have failed. Pretty hard to tell from afar.
@@assetexpert1198 Thats a tough one. It can be as simple as a broken display output (have you tried another one?), memory related or yor gpu chip itself might be broken. And thats just what I can think of right now.
@@PhysicistAnna it doesn't seem to be detected by my desktop. i did try it and still no 1070 in my device manager. fans are on the rgb lighting is on but no display and i cant see a gtx 1070 on my desktop
Hey anna, i love your last video about this, i was searching someone to help me out. But i got ur video.. can you please help me out just want to ask little about my gpu gtx 950 acx 2.0
If you accept viewer donations I have several cards I was not able to diagnose/fix and would love to actually find out what is wrong , I'd be shipping from the USA , and would cover associated cost
You can send me a mail and we can talk about what you did so far. Maybe I can help and you don't have to send them away. If not I would definately give it a try. physicistanna.yt@gmail.com
fixing a gpu...like putting your hand in side the mouth of a lion..my thoughts..it needs very patience and stable mind..you did it because u are that brave..keep it up.
Hi Anna, This is an amazing video. So educational and incredibly interesting. I'm surprised you don't have more views on it. Also, was saddened to hear you had to go through a serious medical issue. Hopefully all is good now but please take care of yourself. Looking forward to the next video. Thanks!!!
I wanted to thank you for this video as I have a gtx 970 that has done the same thing and working on it. I took tons of heat. Keep up the videos and thank you once again.
damm i wanted to see the ending of the journey, first time i use the bell icon
Glad you are getting better and I hope you stay better!!!
Love the 4K footage. Is that bottom inductor cracked at 5:33? And what is the model of the mosfet driver?
Looks like 81062 marking from your previous video, which would be NCP81062. Only possible with the footage
Yes to both. It is the NCP81062 driver and I tried to remove the bottom inductor to get better access for the voltage mod but it cracked before I was able to desolder it so I gave up and glued it back together. Forgot to mention it in the video.
I have a 970 with a similar burned mosfet… was unable to fix it! If you have any interest I would be happy to send it to you as either a donor card or for you to try and fix! Interesting video and definitely a tough repair!
You can send me a Mail and we can talk about what you did so far and I might be able to help so you don't have to send it. If not I'd definately give it a try myself.
physicistanna.yt@gmail.com
Its two months passed away, waiting for your more videos. You were doing good, please make more videos :(
Excellent!!! Thank you. 👍👍
i Love u and your explanation so educational and interesting for me
When u remove mosfets plug in card and apply external power to gpu and vram filter capacitors to check is it worth repairing.
Do you mean while it is being run by the computer?
what is the product for the mosfet drivers you replaced?
Hope you’re doing well now
Thermal camera shows shorts. You can also use rubbing alcohol 90%+ and see where it evaporates from fastest.
take care of yourself and stay healthy😷
Thank you very much, will do!
Hi, i dont know if you noticed but the last choke from up to down has a crack. Maybe thats a cause for the coil whine or maybe even power draw in 1 single connector.
Can you explain what you mean by changing the switching frequency? Is this a reprogramm on the GPU firmware?
I changed the switching frequency of the buck converter by changeing the corresponding resistor.
Can you post the video to the complete explanation in this video's description please?
what mosfet can i use on my gpu?
I need a sm4373 ct73e , does the ct73e matter when im ordering a mosfet?
I have a short in the power connector. But all the MOSFETs are checking out good.
What else could it be? I am a noob so forgive me if I am lost. Gigabyte GTX1060 6GB died when lightning hit my home and took out a handful of electronics.
So where does one acquire parts for things like this?
Hi Anna , I have GTX 1050ti mini 2gb. Now it's not working and when I check up9509 is getting hot , pgood pin has showing 3.3v ....what can be wrong here ??
Apologies but I fail to understand the power reading issue. GPU-Z can show PCIE power, 6pin power and 8pin power. PCIE draws 75W but then what's going on with the 150W extra? What does two power rails mean, taking power from the 6pin and 8pin?
Hi Corvus, thanks for your comment.
So GPU-z displayed 75W from the pci-e slot which is totally fine and withing spec. However GPU-z also displayed 150W on one of the two 6 pin power connectors and 0W on the other one. For one this power draw is way too high which made me not completely trust the reading at this point and the 0W draw on the other 6 pin power connector made it worse as I expected it to work. Two of the four power rails going to the GPU (each "rail" being a synchronous buck converter) are connected to the first 6 pin power connector and the other two to the left 6 pin power connector. There are two issues at hand here, for one a power draw that was way out of spec and two no power draw on one of the 6 pin connectors which I assumed worked. In reality the 0W reading was true but the power draw I still can't explain. In the end a simple swap of all mosfet drivers would have resulted in the card being fixed. Preparing for the last video I made a mistake setting up and I bricked it. I don't know how or if I should actually make another video as it now does no longer work. The power delivery does work but the chip is destroyed, I am so sad.
@@PhysicistAnna Hello Anna, I'm sorry this reply took so long. I just finished repairing my own 970 after watching your and other similar videos, they were very helpful and I'm very appreciative for the effort! The issue seemed to be the same, a faulty driver that burned a mosfet; replaced both.
Sorry to hear about the way your project ended. What made the chip brick?
When I test my GPU I will give an update on the situation.
my evga geforce gtx 950 says invalid format and the screen goes blank how to fix it?
pls part 2!!!!
Almost done filming :)
I just want to ask, how to get the exact mosfet?
New fan:)
Great👍🏻👍🏻👍🏻👍🏻 great👏🏻👏🏻👏🏻👏🏻👏🏻 great👌👌👌👌👌👌👌million tnanks😍😍😍
I currently have an AMD RX 5700XT which doesn't provide a video signal. When booting from the integrated graphics the card does show up in Windows device manager but upon installing the AMD driver the system just freezes either during the installation or during the bootup after the installation. The card gets warm and fans do start to spin so i don't think it might necessarily be a power issue. I was able to reflash the BIOS a couple of times but to no avail. I'm now wondering if the actual GPU chip might be broken or it might be another component which might make this card repairable. I'm just not 100% sure what to look for.
Sounds like you did not properly reinstall your drivers. Just to deinstall and reinstall in windows doesn't help. You need to boot into safe mode and use a specialised programm to get rid of all drivers and their leftovers. After that a normal install should solve the issue. However by flashing the gpu bios there is now another point of a potential failure and if reinstalling the drivers the way I described did not work it is highly likely due to your gpu bios. Bios doen't only have to line up with the card type but also manufacturer and sometimes specific batch. What I can say is that there is no physical damage that can cause this behavior.
Ad53 okay when installing the graphics card driver the windows crash or get stuck is the GPU won’t support heavy loads you may have a short on Pcie 3.3V rail just one way to find out is injecting voltage if GPU gets hot fast is one memory controller inside the is bad that’s why you still able to use as display only
Hi can u help me in diagnosing gtx 750 its nit working and check the pci connection there is a short in 3.3v pins in gpu can u tell more details where to check more
Unfortunately that's a kind of damage I don't know about. However, considering that 3.3V is used for the logic of the gpu, meaning for the main controller IC for example I'd measure if it is shorted. Otherwise it could be any of the passives used around the main controller IC. If there is no obvious, visual damage its pretty hard to diagnose. However if it's not the main controller it could be memory related. The memory has its own dedicated power delivery and maybe dedicated controller IC. Besides that there are numerous op amps that could have failed. Pretty hard to tell from afar.
@@PhysicistAnna can u share your email or telegram so i can send you pics of pcb and have a look i did physical inspection nothing is damaged
Sure send me a mail of both front and back and I'll take a look. physicistanna.yt@gmail.com
Great
got a question. how to determine MOSFET product no to order online? thank you
Data sheet
@@graphicscardtech3167 thank you so much
@@graphicscardtech3167 i got 2 gtx 1070 that fans are on but no display
@@assetexpert1198 Thats a tough one. It can be as simple as a broken display output (have you tried another one?), memory related or yor gpu chip itself might be broken. And thats just what I can think of right now.
@@PhysicistAnna it doesn't seem to be detected by my desktop. i did try it and still no 1070 in my device manager. fans are on the rgb lighting is on but no display and i cant see a gtx 1070 on my desktop
Hey anna, i love your last video about this, i was searching someone to help me out. But i got ur video.. can you please help me out just want to ask little about my gpu gtx 950 acx 2.0
Thanks! :D send me a mail and describe the issue and I'll try to help. physicistanna.yt@gmail.com
Ok i will mail u tonight.
If you accept viewer donations I have several cards I was not able to diagnose/fix and would love to actually find out what is wrong , I'd be shipping from the USA , and would cover associated cost
You can send me a mail and we can talk about what you did so far. Maybe I can help and you don't have to send them away. If not I would definately give it a try.
physicistanna.yt@gmail.com
can you fix my gpu?
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