I have been using MemTest86 4.3.7 to test my system memory but although it knows there are 8 CPI cores, it will only test 4 (I asked it to cycle through all and left it testing for 13 hours). using UFEI mode and MemTest86 5.1, it will only test 1. I think the BIOS is up-to-date but also, MemTest86 4.3 should handle as many as 64 CPUs.
I'm especially interested in this since my backup software is complaining about memory issue but when testing with 4 CPU cores, it doesn't find anything.
Read disk E: at position 188412067840 failed. Image file is corrupted. Decompression failed. Check system memory for errors
motherboard MSI Z68A-GD55 G3 CPI i7-26000 "4 cores / 8-way multitask processing"
Any suggestions? Thank you!
31 Answer
You only have 4 physical cores, so only 4 cores will be tested.
Windows will show you 8 cores, as there are 4 physical cores, and 4 virtual HyperThreading cores.