A lot of people use Prime95 to test their cpu overclock...a google search will probably bring up a place to download it from.

A looping timedemo of Quake 3 is a good stability test. I find that it is a better vid. card stability test than, say, a looping 3Dmark 2k benchmark. For some reason, if I clock my GF2Ultra too high, ...

The move follows reports of stability problems, such as random crashes and errors, particularly during demanding gaming scenarios. The issues were largely attributed to motherboard settings that ...