my computer constantly crashes now whether im doing anything or not. it makes a loud annoying sound coming from the speakers when it locks up to. it'll either restart right after it locks up into the "weird noise" mode or it'll stay like that. sometimes it just freezes the mouse and nothing moves. ive replaced the PSU motherboard and tested each stick of ram by itself in the computer. ive gotten a couple suggestions like my sound card or HD because my HD is like 5 years old. if anyone can help plz do thx

id suggest changing ur hard-drive. check ur new psu for working quality Unknown Atrosphazy Of Life

You need to troubleshoot, not randomly replace parts that *might* be bad. It would help if you listed your system specs.

if you have a creative sound card, and a mobo with nvidia chipset, that might be your problem.

i have a soundblaster live 24bit i believe and yes a nvidia chipset board. system specs are as follows AMD athlon 3000+ evga 7800GT 2x 512MB kingston DDR 3200 ASUS MG351T-C motherboard acepower 520watt PSU 80gig seagate i believe and 40gig hitachi by the way i got a system diagnostics from a computer hardware store as they did all the replacing