Not stable at stock but stable at OC after CPU cooler change
Not stable at stock but stable at OC after CPU cooler change
Hi everyone,
I'm struggling to understand why my PC isn't stable after switching the CPU cooler. I changed from NH-U12S to NH-D15S and added an extra fan NF-F12 from the U12S. After running cinebench r20 and r23, I encountered application errors only on single-core tests, while multi-core tests worked fine. During gaming, it runs smoothly but eventually causes BSODs after a short time. This has been happening for about two days. Both COD Cold War and CS GO caused BSODs in those cases.
On another note, when I overclocked my CPU to 4.65 @ 3.125V, I stopped seeing crashes in cinebench (software issues) and was able to play games for hours without problems.
Last night, I tried removing one fan (the Y-cable was still connected, but I suspected some unusual current spikes since the fans aren't identical). I re-seated both RAM modules and ran memtest86 without XMP, and everything passed after four passes. After that, when I ran cinebench r23, it passed single-core tests, but failed on singlecore for r20 (with XMP enabled). I haven’t tried gaming without overclocking yet because it seems unstable, and I’m not sure what’s causing the issue.
Additional details: I built this PC myself. Over the past year, I upgraded from the stock cooler to U12S, added sleeved cables, and upgraded the CPU two weeks ago. I’ve been handling the inside of my PC a lot.
Main specifications:
- Windows 10 (latest version on SSD m2)
- Ryzen 7 5800X
- RTX 3080
- MSI B450 Gaming plus max (latest BIOS, Patch D beta)
- Corsair RM850x
- 2x8GB XPG Z1 DDR4 3200mhz (XMP enabled)
- 5 case fans total
- 2 SSDs (one SATA, one M.2 PCIe)
- 1 HDD (2.5") from an old laptop
Could I have misconfigured my CPU or motherboard after this change?
Thank you in advance!
It seems PBO resolved the problem (I've also disabled C-states now, though I believe it was mainly PBO). Up to now, I haven't encountered power-kernal errors, BSODs, or crashes without a BSOD during gameplay. Further investigation indicates this is likely a bios-related issue with PBO, and several Ryzen 5000 users are facing the same problem. I'll share an update soon, and hopefully it will help others in the future.
It seems PBO resolved the problem (I've also disabled C-states now, though I believe it was mainly PBO). Up to now, I haven't encountered power-kernal errors, BSODs, or crashes without a BSOD during gameplay. More research indicates this is likely a bios-related issue with PBO, and several Ryzen 5000 users are facing the same problem. I'll share an update soon, and hopefully it will help others in the future.
Updated: Currently playing stocks since. No problems encountered. The PBO issue was the cause as previously stated. This discussion has been resolved.