I agree with Bryan, I've rooted out quite a few bad memory
chips with this app.  There's also standalone bootable
images at:

http://www.memtest86.com/

Make sure you are able to verify at least some good memory
in the motherboard before you blame the memory though.
I've run across a few motherboards that tested good RAM
as bad because they had problems elsewhere.

-Russell


Bryan Murphy wrote:
 > All bootable Gentoo Linux cds come standard with memtest86 as a boot option.
 > It's a darn fine memory tester.
 >
 > I suggest giving that a shot before trying a hardware based solution.
 >
 > Thanks.
 >