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    Android 11 WiFi no throughput

    I have a Xiaomi Redmi note 8 pro which received the update to Android 11 about two weeks ago. For the most part it's a better experience - good enough at least for me not willing to go back to 10 - but I have massive issues with the WiFi connection. Basically every time I do "something" the...
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    Finding a short on a graphics card

    I have a Zotac 960 mini and a R9 280X from Asus with a short to ground - the 960 on vMem and the 280X on the upper two vCore phases. Since there is no visible damage on both cards i proceeded to hooking up my power supply and setting it to 0,9V/1,5V. After slowly increasing the current up to 10A...
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    GTX 1050 Ti extremely low memory resistance

    I have I a PNY 1050 Ti I want to repair - no visible damage or shorts on any voltage rails beside VMem. The resistance to GND is 1.2 ohms - probably a short I thought. Then I hooked my power supply up at 0.9V and slowly increasing the current but the GPU got hot and all memory modules as well...
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    Are BIOS chips interchangeable?

    I have a few GPUs with probably defective BIOS chips. Since they are different and I would like to not have every single eeprom chip in existence in stock in case I need them some time I was curious how far interchangeability goes. Can I just use any SPI eeprom with enough capacity for the bios...
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    Graphics card gets stuck on login screen

    I had a few cards on my hands by now with the same problem - crash on loading windows or login screen. Since I wasn't able to fix any of them I'm curious what can potentially cause this issue. I know about Vram damage, BGA damage, faulty BIOS installation or defective BIOS chip and of course die...
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    Windows is not recognized and not loaded

    I upgraded two old Dell optiplex 990 and basically threw everything out except the mainboard. After I finished and was about to install Windows but every time I tried it aborted saying "windows failed to start a recent hardware or software change might be the cause". I didn't think much of it...
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    Causes for GPU artifacts

    I have a Gainward GTX 770 Phantom with heavy static artifacts and already tried reflowing it which didn't help. Then I inspected the solder connections of the RAM chips and found one that was particularly stretched - fixing it also did not work. Now have a useless graphics card liying around and...
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    Can a graphics card run on different vram-chips

    I just accidentaly bought a gpu on eBay on which de owner had exchanged the ram-chip without me realizing in the offer. I dont think that in this case the card will work this way due to poor soldering and probably the wrong chip. This made me curious though and now im wondering - can a gpu...
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    Useful components for GPU repair to keep in stock

    I have started my own small "graphics card repair shop" in which i focus mostly on the generations between Kepler and Maxwell (AMD equivalents in this time periode as well) and would like to know if there are some components which are very comon and prone to breaking and therefor good to keep...
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    Does IRS4458 need 4.2V on VCC?

    I have a R9 Fury Nitro which doesn't get power on its gpu phases. All of these use Irs4458 and they are all connected to the 12v rail and gnd as well as the gpu but don't have any voltage on the output. My only two guesses are that either all of the mosfets are faulty or the controller. I was...
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    GPU is getting power but no image

    I have two graphics cards which are both getting power on their main and memory phases and become hot really quickly when powered on. That's why I concluded the their power supply ist working correctly but they still won't show an image. I'm new in the graphics card repair section and therefore...
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