The computer stopped working and won't power up.
The computer stopped working and won't power up.
Hello, Im using a PC that i made 7 years ago. All was well untill a few ago. My PC started booting randomly and Today i Lost Power and PC won't turn back on "UNLESS" [I remove the GPU]. I've checked the PSU. Tested it via paperclip method with few fans attached to it. It worked. Seated the RAM in A1 and B1 slot. Mem Ok checks out OK. Is my GPU dead? It's can't be cuz it showed no sign of wear. No BSOD, No weird lines on display, it checked out Stressed test too. " AS SOON AS I TURN THE PC ON WITH GPU INSTALLED, THE FANS FLICK FOR LESS THEN A SECOND AND NOTHING STARTS" what's ur opinion? Below are the peripheral used. Corsair VS550 PSU Asus Strix GTX 970 AMD FX 8370 Corsair vengeance 8x2 16 GB 16Mhz RAM. Asus M5A97R2.0 Mobo.
one possible solution is a defective PSU that cannot supply sufficient power to the GPU and motherboard. When PSUs are designed this way, they may slightly increase voltage when they can't handle the current, causing the controller IC to become overvolted and reset. The typical controller IC used in such cases is TL494 or similar. If you test your PC with another PSU, I can walk you through opening and inspecting it, though this process is very risky even for experienced technicians. It's usually best to try a different PSU first. If you have a multimeter, let me know so I can guide you further on testing the GPU.
The speaker connectors are damaged. It could be a dead GPU or the power supply might not be able to manage the increased demand suddenly.
I made sure the voltage readings were accurate before anything else. I didn’t test the load, and opening the PSU isn’t safe because it contains capacitors. They retain charge, so I won’t attempt that for safety.
Smart guy, good decision, you're quite insightful for skipping this step. Now position your GPU ahead of you and set up your multimeter in diode mode. Attach the negative probe to the ground pin. Then, test each 12V connector individually. You should see a reading between zero and one. Depending on your multimeter model, diode mode may offer continuous readings or have its own built-in continuity feature. If touching the positive probe to the 12V pin causes a beep or a zero reading, it indicates a short circuit—your GPU is likely damaged and needs repair. Alternatively, you can verify if your PSU is faulty by connecting your multimeter to one of the 12V lines in the PSU, linking the remaining pins to the motherboard and GPU, and powering up the system. Wait for the situation to occur, then check the voltage on the 12V pin during that moment. A drop or an abnormal increase suggests insufficient current from the GPU due to a short or a weakened PSU caused by faulty capacitors. This issue is usually fixable unless the GPU has a serious problem. If you have any questions about what you did, feel free to ask for clarification.