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Faulty processor?

Question asked by 19hba66 on Dec 9, 2019
Latest reply on Dec 10, 2019 by misterj

When running Prime95 stress-test on a non-OC Ryzen 3600 system, 6 threads return fatal error and stops with the following message on Worker #1, 4, 7, 8, 11 and 12:
#1
[Dec 9 10:55] Worker starting
[Dec 9 10:55] Beginning a continuous self-test on your computer.
[Dec 9 10:55] Please read stress.txt. Choose Test/Stop to end this test.
[Dec 9 10:55] Test 1, 31000 Lucas-Lehmer iterations of M9537183 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 11:00] Test 2, 31000 Lucas-Lehmer in-place iterations of M9437185 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 11:02] FATAL ERROR: Rounding was 2922748011, expected less than 0.4
[Dec 9 11:02] Hardware failure detected, consult stress.txt file.
[Dec 9 11:02] Torture Test completed 1 tests in 6 minutes - 1 errors, 0 warnings.
[Dec 9 11:02] Worker stopped.
#4
[Dec 9 10:55] Worker starting
[Dec 9 10:55] Beginning a continuous self-test on your computer.
[Dec 9 10:55] Please read stress.txt. Choose Test/Stop to end this test.
[Dec 9 10:55] Test 1, 31000 Lucas-Lehmer iterations of M9537183 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 11:00] Test 2, 31000 Lucas-Lehmer in-place iterations of M9437185 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 11:02] FATAL ERROR: Rounding was 3.598465873e+011, expected less than 0.4
[Dec 9 11:02] Hardware failure detected, consult stress.txt file.
[Dec 9 11:02] Torture Test completed 1 tests in 6 minutes - 1 errors, 0 warnings.
[Dec 9 11:02] Worker stopped.
#7
[Dec 9 10:55] Worker starting
[Dec 9 10:55] Beginning a continuous self-test on your computer.
[Dec 9 10:55] Please read stress.txt. Choose Test/Stop to end this test.
[Dec 9 10:55] Test 1, 31000 Lucas-Lehmer iterations of M9537183 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 10:59] Test 2, 31000 Lucas-Lehmer in-place iterations of M9437185 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 11:01] Self-test 480K passed!
[Dec 9 11:01] Test 1, 7000000 Lucas-Lehmer in-place iterations of M83839 using FMA3 FFT length 4K.
[Dec 9 11:02] FATAL ERROR: Rounding was 0.5, expected less than 0.4
[Dec 9 11:02] Hardware failure detected, consult stress.txt file.
[Dec 9 11:02] Torture Test completed 2 tests in 6 minutes - 1 errors, 0 warnings.
[Dec 9 11:02] Worker stopped.
#8
[Dec 9 10:55] Worker starting
[Dec 9 10:55] Beginning a continuous self-test on your computer.
[Dec 9 10:55] Please read stress.txt. Choose Test/Stop to end this test.
[Dec 9 10:55] Test 1, 31000 Lucas-Lehmer iterations of M9537183 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 11:00] Test 2, 31000 Lucas-Lehmer in-place iterations of M9437185 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 11:02] Self-test 480K passed!
[Dec 9 11:02] Test 1, 7000000 Lucas-Lehmer in-place iterations of M83839 using FMA3 FFT length 4K.
[Dec 9 11:02] FATAL ERROR: Rounding was 0.5, expected less than 0.4
[Dec 9 11:02] Hardware failure detected, consult stress.txt file.
[Dec 9 11:02] Torture Test completed 2 tests in 6 minutes - 1 errors, 0 warnings.
[Dec 9 11:02] Worker stopped.
#11
[Dec 9 10:55] Worker starting
[Dec 9 10:55] Beginning a continuous self-test on your computer.
[Dec 9 10:55] Please read stress.txt. Choose Test/Stop to end this test.
[Dec 9 10:55] Test 1, 31000 Lucas-Lehmer iterations of M9537183 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 10:59] Test 2, 31000 Lucas-Lehmer in-place iterations of M9437185 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 10:59] FATAL ERROR: Rounding was 0.5, expected less than 0.4
[Dec 9 10:59] Hardware failure detected, consult stress.txt file.
[Dec 9 10:59] Torture Test completed 1 tests in 4 minutes - 1 errors, 0 warnings.
[Dec 9 10:59] Worker stopped.
#12
[Dec 9 10:55] Worker starting
[Dec 9 10:55] Beginning a continuous self-test on your computer.
[Dec 9 10:55] Please read stress.txt. Choose Test/Stop to end this test.
[Dec 9 10:55] Test 1, 31000 Lucas-Lehmer iterations of M9537183 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 10:59] Test 2, 31000 Lucas-Lehmer in-place iterations of M9437185 using FMA3 FFT length 480K, Pass1=384, Pass2=1280, clm=1.
[Dec 9 10:59] FATAL ERROR: Rounding was 0.5, expected less than 0.4
[Dec 9 10:59] Hardware failure detected, consult stress.txt file.
[Dec 9 10:59] Torture Test completed 1 tests in 4 minutes - 1 errors, 0 warnings.
[Dec 9 10:59] Worker stopped.

All cores temperature max out at 95°C.
In a second run Worker #1, 4, 7, 11 and 12 errors, but #8 keeps going.
Is this indication of a faulty processor?

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