Problem with HD help!!

[darkunitzero]

Hello, well I just finished putting my system together and its been running great all day but about 15 mins ago it just crashed and my seagate hd is no longer recognized. Any ideas?

my system:
e6750
crucial 2gb ram
seagate 7200.10 250gb sata
evga 8800gtx
corsair 620w

oh thank god, its because the ram wasn't at 2.2v but i still do not know why it just suddenly crashed =[.

Edit: how do i know if my hard drive is running at 3 gb/s?

 

[engiNURD]

DL and run HDTune and HDTach.

 

[darkunitzero]

awesome, argh but now i've ran into another problem. when i do something like install wow and watch a movie, listening to music, or just playing with the OS everything gets choppy. The sound echoes like I'm in a hall and video starts jumping. So far it's only been happening when I install new programs, any ideas?

 

[engiNURD]

I'm confused. So, if you're watching a movie while installing, stuff goes to shit?

 

[darkunitzero]

not only movies, youtube or mp3s get muffled. even the mouse pointer jumps around. usually i can just leave itunes and have some music in the background without a problem but with this comp, no go.

btw i noticed in your sig that your new rig is also a e6750. what are the temps on the two cores when idling?