Always, always use memtest86
This week my workstation started freezing and BSOD’ing. I ignored it for a few days until today it finally corrupted my registry.
I spent a few hours restoring the registry from a restore point only to stop at a STOP 0×7E or 0×08E bluescreen.
It turns out I skipped the religious memtest86+ (http://www.memtest.org/) check when I bought this machine. Wierd, I always make sure to run it on all my servers, but somehow managed to forget to do it on my workstation. Now, with 1GB less RAM and two days work lost, I think I’ll never forget it again.