I'm having trouble pinpointing the issue with my PC. On Thursday morning, I left it running and came back 30 minutes later to find a red CPU light and a yellow DRAM light on. I've tried reseating components, flashing the BIOS, and testing with two different motherboards, but I'm still stuck. I want to avoid throwing money at parts that might not be faulty, so I'm reaching out for advice on how to determine if it's a RAM, CPU, or PSU issue. Here are my components:
- CPU: Ryzen 5 9600
- GPU: 9060xt
- RAM: 2x16GB Crucial
- PSU: Mag A750GL PCIe5
The motherboards I've tried are:
- ASRock B850M Pro A WiFi
- Gigabyte B650 Eagle AX
- ASUS B650-A Gaming WiFi
3 Answers
Since you mentioned your PSU, CPU, and motherboard, we might want to dive into those. It sounds like there might be an issue there, but it’s tricky without more tests.
It's hard to say for sure without testing, but you might consider that your power supply could be defective. A faulty motherboard is also a possibility. If you have warranties on your parts, checking those might help you out. What specific hardware are you running?
Here are my specs: Ryzen 5 9600, 9060xt, Mag A750GL PCIe5, and 2x16GB Crucial.
Is your computer still operational despite the lights being on? That could give us more clues. Also, be sure to share your specifications when you can!
Unfortunately, it fails to post. The troubleshooting lights come on, but the monitor stays blank.

I've used three different motherboards, and I've been told a repair shop can't assume they're all defective.