
Memtest86 only detects physical errors in your system memory, but cannot fix any errors. You can read a description of each of the test sections here. MemTest86 executes a series of numbered test sections to check for errors and there should be 0 errors. How many errors in Memtest86 are acceptable? Memtest86 will load your CPU up to 100% during testing, because data read or written to RAM will pass through the CPU, but it should not harm your processor or RAM.

MemTest86 boots from a USB flash drive and tests the RAM in your computer for faults using a series of comprehensive algorithms and test patterns. No, MemTest86 is a memory-only testing tool for x86 and Arm PCs.
