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Package:Memtest86+
Memtest86+
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Memtest86+ is an application that sends random bits of data through RAM to detect errors. Memtest86+ can find if your memory, memory socket, motherboard, or bios settings are bad.
Installation
root # emerge memtest86+
Configuration
Memtest86+ needs to be loaded upon boot, so bootloader entries need to be setup for memtest86+
Tips
Testing individual sticks in individual sockets will determine if the chip or socket has problems. If each chip, and each socket are fine individually advance testing to include more chips until the motherboard is full.
Once all the chips are working fine in single thread mode, test the chips in smp mode by quickly pressing f2 at the start of the test.
Failures
Locations of failures can be determined via hex addresses.
To load DMA information:
c 6
This will produce an output similar to this:
DIMM0 00000000000 - 000ffffffff DIMM1 00100000000 - 001ffffffff