Memtest
If you need to check the ram on your machine and you happen to be running gentoo:
pddb-a01 linux # emerge -p memtest86 These are the packages that I would merge, in order: Calculating dependencies ...done! [ebuild N ] sys-apps/memtest86-3.0-r1
and then add this to grub.conf:
title=memtest kernel (hd0,0)/memtest86/memtest.bin
Reboot and the choose the memtest option.

Many thanks for this tip! Just what I’ve been searching for
Greets
norm
most linux install disks/live CDs seem to have this now – just type memtest when you are given the prompt