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Old 2021-12-28, 14:25   #1
db597
 
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Jan 2003

2·103 Posts
Default Fatal error but Self-test passed?

I just built a new Ryzen 5800X and was stress testing it using 16 threads on P95 v29.4.
The log shows at 480K FFT there was a fatal error - the rest of the FFT sizes were all fine.
But after that it also shows the Self-test passed.
Any idea why it would show an error yet pass the Self-test on the next line?

Is 480K due to CPU or memory? If I understand correctly, 480K should be a memory issue?
The memory is running at 3600MHz C16, which is the official XMP rated speed.

Results.txt from P95 v29.4:
Code:
[Thu Dec 23 21:23:17 2021]
Self-test 480K passed!
FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
[Thu Dec 23 21:28:22 2021]
Self-test 480K passed!
Self-test 480K passed!
And it happened a second time on P95 v29.4:
Code:
[Tue Dec 28 21:54:46 2021]
FATAL ERROR: Rounding was 0.4983373283, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Running 480K FFT on P95 v30.7 for 12 mins didn't produce any errors:
Code:
[Tue Dec 28 22:24:27 2021]
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
[Tue Dec 28 22:30:23 2021]
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!
Self-test 480K passed!

Last fiddled with by db597 on 2021-12-28 at 14:32
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Old 2021-12-28, 14:27   #2
Xyzzy
 
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Aug 2002

37×229 Posts
Default

What happens if you run at the non-XMP (JEDEC) memory speed?

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Old 2021-12-28, 14:36   #3
db597
 
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Jan 2003

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Default

Quote:
Originally Posted by Xyzzy View Post
What happens if you run at the non-XMP (JEDEC) memory speed?

Haven't tested yet. It takes quite a while to get one of those fatal errors to appear.
Though whenever it happens it's always 480K FFT.
And it happened on P95 v29.4 but not v30.7 - at least not yet.
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