PCI slots can eliminate GPUs.
PCI slots can eliminate GPUs.
I've repaired several computers before, but this one was tricky. I worked with a basic Acer model that was overheating. He tried moving the fan but unplugged it when the machine was on and seemed to have a problem. The computer shut down completely, then restarted but wouldn't post and emitted a beep code. It turned out the GPU was damaged—it had a PCI e power connection and was shot. I found a replacement card (Rx 580) and used it for a full day; it worked perfectly. Even after two hours, the other card was dead when I tried it again. I’m wondering if the PCI e port might be affecting these cards now, especially after the fan issue. I thought the power supply was fine since the original card used PCI e power, but the new one switched to an 8-pin design. I have a PSU tester from Amazon ready to verify the power supply. Any advice?
I hope you have a multimeter. Otherwise, nothing I write here will make sense. Look at the voltage reading on the PCIe slot (you can also try stress testing the CPU while measuring). https://en.wikipedia.org/wiki/PCI_Express#Pinout disassemble one of the broken graphics cards and check for shorts (along with a visual check). This video can help you get started if you don’t have much experience with electronics. https://www.youtube.com/watch?v=iD6P8A6Cc94 Check the PSU rails voltages https://www.smpspowersupply.com/connectors-pinouts.h