Arch Linux

lnxgrl

Member

Registered: 2007-01-23

Posts: 6

Kernel panic - not syncing: Machine Check

My equipment: AMD 3500+ nforce4 DDR 400 Dual Channel running x86_64. Mobo is a ASUS A8N5X. Replaced the northbridge fan about 6 months ago.

Yesterday, rebooted my computer a couple of times, then shut it off for the night. Didn't do any updates yesterday. Was greeted with the following kernel panic this morning:

HARDWARE ERROR
CPU 0: Macine Check Exception:                        4 Bank 4: b200000000070f0f
TSC 1ae509bda4
This is not a software problem!
Run through mcelog --ascii to decode and contact your hardware vendor
Kernel panic - not syncing: Machine check

The TSC code changes each time I reboot. This panic happens after the file system check....the kernel recognizes all hard drives, pauses for about 10 seconds then panics.

I've run a memtest (via knoppix) and all was fine. Replaced video card and RAM (just in case) still same error. Checked for leaking capacitors.  I am not overclocking.

Anyone else experience this before or can point me into the right direction?

kumico

Member

Registered: 2007-09-28

Posts: 224

Website

Re: Kernel panic - not syncing: Machine Check

sounds like a cpu issue

mclang

Member

From: Finland

Registered: 2005-10-24

Posts: 79

Re: Kernel panic - not syncing: Machine Check

I have now occasionally this same problem.

The pc locks up unexpextedly. If I happen to be in console at that time, I see:
    CPU 0: Machine Check Exception: 00000000000004(+- a few zeros)
    Bank 4: b200000000070f0f
    Kernel panic - not syncing: CPU context corruption

After this the pc needs hard boot before booting succeeds. Soft boot results again into same error message just after "kinit" (have to check this). I just replaced my PSU because it stopped working. First I thought that the failed psu is to blame, but when same error happened again, it has to be something else. Memtest did run through several times without problems. I have following setup:
- Athlon 64 3000+
- MSI K8N Neo Platinum (Nforce3 250Gb)
- 2.6.24-ARCH

Does anybody have a clue whether this is CPU, motherboard or some other error? Can I pinpoint the the faulty part without trying new part in every place?

I don't want to get new computer altogether - it costs too much (I'm trying to save money for ps3)

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Duettaeánn aef cirrán Cáerme Gláeddyv. Yn á esseáth.