Question: Looping Red Light on CPU followed by Green Display
Question: Looping Red Light on CPU followed by Green Display
I began experiencing issues with my desktop in December 2022. The computer would power on and off by itself, though it never occurred while I was using it. I took it to repair, and after testing the components, the technician identified the motherboard as the problem. I replaced it with an Asus Tuf gaming B560M and it stopped having issues. However, in December of last year, a similar situation happened again—while watching YouTube shorts, the screen went black, lost signal, restarted, and then the CPU LED changed from red to green, the DRAM LED turned yellow, followed by green and a successful boot. It seems there might be a RAM or motherboard issue. I suspect the processor is the culprit, possibly due to overheating during summer gaming sessions, especially when playing Call of The Hunter, where it reached 100°C and forced me to quit.
I disassembled cables, RAM, and GPU, and the desktop came back on. But then another problem emerged: whenever I moved the mouse or pressed the keyboard, the system would shut down and restart. I tried updating the BIOS to address this issue, hoping it wouldn’t get corrupted.
Current specs:
- Motherboard: Asus Tuf B650-M Plus
- Intel Core i9-10400F
- RAM: 8GB x2
- GPU: GeForce 1660 Super
- PSU: 560W
- Status: Desktop is dead, it doesn’t power on normally. During boot, the LED lights for CPU, RAM, VGA, and booting appear, but after a few seconds it turns off again. I’m planning to send it to a repair shop and will upgrade to an i7 processor, faster RAM, and a better cooler to enable CPU overclocking.
PSU is from Azza PSAZ 550W, I purchased it in 2019. A year ago I faced a minor issue—a motorized fault. The technician checked the PSU with a voltmeter and confirmed it was fine. However, you're correct; I plan to send it for repair soon, as it's no longer useful to share publicly.
The issue lies with this unit; it's a low-quality PSU, essentially poor quality. This also accounts for why your first build failed and the second one is also failing. If you don't replace the PSU, the third build will face the same outcome. I checked the label on your PSU and confirmed it isn't a 550W model—it's actually a 492W unit, which can handle the +12V rail at 41A. So, your PSU is of very poor quality, with misleading marketing and possibly containing defective components. No, that's not correct. To verify its performance under load, you'd need specialized test equipment, which is expensive. A basic multimeter won't provide useful results. It's similar to assuming a car runs well just because it starts at idle without testing the engine under stress. I recommend investing in a reliable PSU from brands like Seasonic, Vertex, PRIME, or Corsair in the 550-650W range. For further insight on your Azza unit, refer to this PSU tier list: https://forums. Your PSU falls into Tier D, whereas the suggested alternatives are all in Tier A.
I enjoy playing Apex Legends at 144 fps for extended periods, there have been no issues so far, and I plan to purchase another power supply, likely a gold-tier 650W unit.
Never experienced any issues? Then what went wrong with your first MoBo?
Why switch to an Asus TUF gaming B560M MoBo?
The poor quality PSU can produce voltages beyond specifications, which may harm components over time and lead to failure.
Well, PSU killing 2 MoBos is a major issue.
Not all PSUs are the same. Or even better, here are two options that fit your needs: semi-modular, 80+ Gold efficiency, and 650W capacity.
Check this out: https://pcpartpicker.com/products/compar...6h,cN26Mp/
Can you explain why Apevia PSU is around $55 while Seasonic PSU is nearly three times more expensive, at about $140?
Also, which of the two would you choose and why?