Hi, yet another p95 failure question. I have a new build using an 8700k at stock settings (with Enhanced Turbo disabled) on a msi Meg ace mb, 32 gb (2x16) vengeance lpx 3200 with xmp enabled, with a noctua d15 cooler. PSU is seasonic focus plus platinum 750. GPU is an older msi 1060. Everything new except the GPU. System passes every test except p95 blend or large FFTs. Version is 29.8b3. The same result occurs with xmp or at the default spd settings. I have even tried downclocking the cpu, turning off turbo entirely, etc.
I’ve run memtest86 many times, usually using sequential CPU enabled, and all but twice it passed the tests with zero errors. The times it failed it found four errors, at two addresses, which were consistent between the two tests. What is weird is I have run this same test many times since those errors and it always passes now.
When p95 fails, it’s a round off error, and only 1 of the 12 workers actually stops - the other 11 happily continue indefinitely just fine. Temps usually in the high 50s, and never get above mid 70s for any of the p95 torture tests. The fails are on random workers and not at consistently times or consistent tests.
It does pass a large FFT if I limit the amount of memory to 25000 instead of the default it chooses - that test has been running for a couple hours now just fine.
Before I start trying to RMA components, is this more indicative of a ram, cpu or mb issue? What else can I try to narrow down?
If it matters I have done some OC experiments on this machine but nothing excessive, and never witnessed any issues (other than p95 fails).
This is a complete part list: https://pcpartpicker.com/list/JhvxD2
Thanks!
I’ve run memtest86 many times, usually using sequential CPU enabled, and all but twice it passed the tests with zero errors. The times it failed it found four errors, at two addresses, which were consistent between the two tests. What is weird is I have run this same test many times since those errors and it always passes now.
When p95 fails, it’s a round off error, and only 1 of the 12 workers actually stops - the other 11 happily continue indefinitely just fine. Temps usually in the high 50s, and never get above mid 70s for any of the p95 torture tests. The fails are on random workers and not at consistently times or consistent tests.
It does pass a large FFT if I limit the amount of memory to 25000 instead of the default it chooses - that test has been running for a couple hours now just fine.
Before I start trying to RMA components, is this more indicative of a ram, cpu or mb issue? What else can I try to narrow down?
If it matters I have done some OC experiments on this machine but nothing excessive, and never witnessed any issues (other than p95 fails).
This is a complete part list: https://pcpartpicker.com/list/JhvxD2
Thanks!