HDD shutting down while PC is on.

[Sniper82]

Have a Antec Smartblue 350.

Abit NF7-2
1800+@2.2 200FSB
512mb
80gb Seagate
Radeon 7200
1 optical drive
4 case fans

My HDD sometimes shuts down while the PC is in use and spins back up. I know it ain't the drive because I've had it happen to other drives aswell. What could be causing this? Also wouldn't it cause the system to lock up? I'm confused?

I can hear that clunking sound and the HDD spinning down that you get when you shut the system down.

 

[AmdEmAll]

Under power options properties is it set to turn off the hard disks after a certain amount of time?

Also could be the PSU

 

[dguy6789]

Most likely the psu.

 

[Vegito]

this happens a lot on my older hdd.. the molex plug was bad, every time something touches the wire (open case), you hear the hdd go on/off

 

[T9D]

This JUST happened to me and I finally fixed it the other day. Turned out to be a bad power supply. It used to do it everyday but not anymore since I got a new power supply.