The PC shut down during a game and is no longer booting up, even though the CPU debug light remains on.
The PC shut down during a game and is no longer booting up, even though the CPU debug light remains on.
Hello everyone,
Yesterday my newly built Gaming PC stopped working after a month. At first, when I started using it, it would occasionally crash with a BSOD. The system was stable otherwise, but it would freeze once per session—usually while idle—and then restart itself most of the time. I thought the RAM might be the cause, so I disabled the XMP profile to try and improve stability. After a couple days, it crashed again, which made me reconsider.
I decided to enable MSI AfterBurner and monitor the PC temperatures while playing Forza Horizon 5. About an hour in, the game suddenly shut down with a random click sound—possibly from the PSU. It then powered back on by itself, but without showing any display. All fans, including CPU, GPU, and case, were spinning, and the EZ Debug CPU stayed active.
The PC details are:
Model: MSI Z370 A-PRO
CPU: Intel i7-8700k (overclocked to 4.4GHz)
GPU: XFX Radeon RX 6650 XT
RAM: Crucial Ballistix 16GB (2 x 8GB) DDR4
Power Supply: 650W SHARKOON WPM Gold Zero
I’m really hoping it’s just a problem with the board I got from a friend or the CPU, which I bought new but used under warranty. I’m worried about power supply failure and plan to switch to a Corsair PSU soon. I’ve already tried reseating RAM, using only one stick, turning off and plugging back in after two days, re-seating the GPU, and even trying to boot without it. No burning smell was noticed at the time.
Welcome to the forums, newcomer!
PSU: 650W SHARKOON WPM Gold Zero
Consider obtaining a stable PSU with 650W capacity for the entire system to determine if the problem improves.
The EZ Debug CPU has been running continuously.
If the issue stems from the motherboard or BIOS, try placing your processor on a verified working board and observe if POST occurs.
I'll definitely give it a shot right away and keep working on this. It's interesting I was impressed by Sharkoon's reputation during my search for a PSU, but I'm sure I'll switch to Corsair eventually.
There was a Reddit post recently where people joked about someone's Sharkoon going boom. I agree with Lutfij about trying a new power supply. It seems like a simple fix. Also, welcome to the forums!
I just wanted to let everyone know I accidentally came across this post. I didn’t really expect it to happen, as it seems unlikely. However, the CPU actually failed without any clear reason. Testing the PSU confirmed everything was fine, and installing an i5 8600k resolved the issue.