DIMM (Pro edition)/chip-level (Site Edition) error detection on limited number of hardware platforms.As this test is experimental, it shall be disabled by default.
The motivation for this test came from discovering a defective RAM module that did not produce errors when accessed via the CPU, but failed when files were read from disk via DMA. This test exercises the disk controller's DMA hardware to perform memory access, bypassing the CPU.
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.