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CPU errors? (feddit.nl)

submitted 11 hours ago* (last edited 4 hours ago) by lemmyvore@feddit.nl to c/linux@lemmy.ml

16 comments fedilink hide all child comments

I'm trying a new CPU in my PC (Ryzen 5500GT) and I'm seeing:

Sporadic kernel panics during boot.
Random .ko.zst module files (different one each boot) complaining that ZST decompression failed checksum.
Random .so's failing to find a symbol and causing programs to crash/fail to start.
Started a stress-ng sequential session at 5s per stressor and it hung up after a dozen stressors. Couldn't ctrl-c it and also ps didn't work anymore. 😅

Funny thing is, other than that the system runs fine (when it boots, that is).

Switched back to my old CPU (that's the only change in the machine) and all of these things stopped.

That CPU that's doing that is defective, correct? Just double-checking I'm not missing anything else.

I've reset BIOS between CPU swaps and left it at defaults. Could default settings cause a CPU to act like this?

Edit: cooling is good, all temps (chipset, CPU etc.) are in the 30's C in idle, CPU went up to 75C when stressed. Have a tower cooler (Scythe Kotetsu) with a 120mm fan.

I'm also adding some voltage readings I took from sensors while the problematic CPU was installed:

Vcore: 840mV
+3.3V: 3.31V
+12.0V: 12.10V
+5.0V: 5.01V
VSOC: 780mV
VDDP: 900mV
DRAM: 1.21V
3VSB: 3.29V
VBAT: 3.26V

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[–] sga@lemmings.world 3 points 11 hours ago (1 children)

can you give more details about your system, what kernel you are using what distro? also, have you tried testing a live boot usb to do testing, and also (I am presuming that you changed motherboard, and kept rest same) can you replace 1 part at a time and check.

Usually random breakages mean memory or power errors, and even different modules breaking can be caused by corrupt storage (maybe the readheads of hdd are broken, or if ssd, something something something, maybe broken/damged contacts). But you say going back to older cpu fixed this. Can you check what speed does your menory work at, sometimes, stable ram speeds depend on cpu, maybe you had it lower/higher for older cpu (usually lower than stable is not issue, higher is the issue), or maybe, your newer cpu is drawing more power, or you have some kind of faulty contact and some stray currents are developing on your motherboard. A fey more details would be really helpful

[–] lemmyvore@feddit.nl 1 points 4 hours ago

All hardware is the same, I'm trying to upgrade from a Ryzen 3100 so everything should be compatible. Both old and new CPU have a 65W TDP.

I'm on Manjaro, everything is up to date, kernel is 6.12.17.

Memory runs at 2133 MHz, same as for the other CPU. I usually don't tweak BIOS much if at all from the default settings, just change the boot drive and stuff like "don't show full logo at startup".

I've add some voltage readings in the post and answered some other posts here.