I've been helping a friend who had some GPU issues, so we suggested replacing his 9-year-old PSU before he invests in a new GPU. We installed the new Be Quiet Pure Power 12 M PSU and cleaned the entire setup. However, after reassembling everything, we found that none of the system fans (other than a few directly connected to the PSU) would run, the motherboard LEDs didn't light up, and we couldn't turn off the system from the power button. We received debug error codes 60 or 80, but they didn't give us any clear indication of the problem. When we reconnected the old Corsair CX750M PSU, everything powered on fine, but we had no video output and the same issue persisted even when we tried the onboard graphics without the GPU. We've already cleared the CMOS and tried booting with each RAM stick in various configurations. We did a thorough cleaning with paper towels, a vacuum, and brushes, and none of the pins appear damaged. His setup includes a Gigabyte GA-AX370 Gaming 5 motherboard, a Gigabyte RTX 3060 GPU, a Ryzen 9 5900X CPU, and 2x16GB HyperX Fury RAM. I'm starting to think the new PSU might be faulty, but the lack of video with the old PSU makes me worry that something else may have failed during our work. Any suggestions?
3 Answers
It sounds like you did a lot of troubleshooting already! But it's a good idea to double-check the new PSU connections. Sometimes the cables don't sit right in the motherboard or GPU. Have you checked if the PSU is fully compatible with your friend's setup? Also, those debug LEDs can be tricky — the 60 and 80 codes are generally related to memory issues or the motherboard not initializing properly. You might want to reseat the RAM and even the GPU just to be sure everything's snug. Good luck!
It's possible that the new PSU is DOA, especially if it’s not powering the components correctly. I'd recommend testing it in another system if you can, just to rule that out. As for the old PSU, the no video issue could indicate problems with the GPU or motherboard, especially if the debug codes are popping up. Also, are all the power connectors (like CPU and PCIe) properly connected?
You might want to check the power supply outputs using a multimeter if you have one. It's also worth ensuring that the 24-pin connector is firmly in place. Debug codes can vary by motherboard, so checking the manual for your Gigabyte board can help too. Sometimes a reset of the motherboard’s BIOS settings can clear weird statuses.
Yeah, I've had similar issues with my old motherboard too! It helps to try booting with a single stick of RAM. Sometimes one stick can cause problems if it’s not seated right.