I have this Dell Optiplex GX620 in my office @ work... It's got 3ghz p4 ht, 4gb ddr2-4200, anyhow... went to reboot it on friday because it was going really slow and it wouldn't restart. It would start in safe mode but not normally. Tried a repair installation and it just hung up, did diagnostics and showed hard drive errors so I replaced the drive.

Today, i went to run windows updates on the new xp install and it comes up w\ xp sp3 which i've installed on lots of systems. It goes through the install, reboots and now it wont boot.

there is no display and it gives akind of beep that i've heard before when there were unmatched memory types... I'm confused. I guess it's possible the mobo just blew out but idk, it was working perfect w\ the new hd i put in this weekend and then right when it rebooted from xp sp3 install it is just dead weight.

Tried reseating ram, and same thing : (

Any suggestions? i'm not going to waste too much time on it because I can get another like it for $99 or less maybe.