I have an athlon xp2200 (266) and I had 512MB pc2100 (266) and everything was great. I replaced the memory with kingmax pc2700 (333) which i know is supported by my 7VJL deluxe apogee with KT400 chipset, but ever since then, it periodically locks up on me.

Any ideas? Maybe just bad memory?

sounds like you may have bad memory. you can check by downloading memtest and running it.


http://hcidesign.com/memtest/download.html

Thanks. I will try that, and I'll also put in my old memory and see if it stops locking up.

It's surely a problem with your memory. Memtest will detect it for sure.

I recently had 512 mb of 266mhz poor brand memory and I replaced it with 2 modules of 512 kingston 333mhz and I have no problems at all. My cpu is a XP2000, running at 266, as yours.

Don't be so sure... if it is an intermittent "hard" error, the possible causes are quite varied... and may only appear under certain circumstances; a flat stress-test may not be one of them.

Either way, I already got an RMA so I can get it replaced if I need to. I will do the mem test when I get home, and if it shows no problem, I will remove one stick, swap it with the other stick, and try my original memory. Time for some troubleshooting.

i had the same problem my system locked up after a while its bad memory for shure...

You could also try reseating the memory modules as it may just be a doggy connection.