Hello there,
Recently, one of my hard drives (a 7-year old Western Digital SATA 160GB), it shuts off when I'm working on things and caused the partitions in the drive to be missing. I could hear the motor shutting off, and the HDD LED fully lit on. The frequency of the drive doing that increases from the past week. I restarted the PC, just to have the hard disk to come back again, but after a few minutes to a few hours later, it shuts off and gets missing again.
The SMART status on the HDD is fine, and I do not have power saving options on the HDDs as they are "always on".
I bought another new HDD just to standby if this thing is kaput. Luckily I moved all my work and thesis to another place when it happened.
Is this the HDD problem, or the motherboard?
The specs of the system is a Radeon 6670, Intel Core 2 Duo E7200, a couple of HDDs, and an Asus P5G41T-M motherboard, running with Windows 7 Ultimate 64-bit.