GA-MA770-UD3 - drives vanish

[MacBurp]

My PC is on 24/7, and since installing windows 7 all hard drives disappear after 48-72 hours.

My system -
AMD7850
Gigabyte GA-MA770-UD3 mobo (v1)
2 x Seagate 500MB discs
1 x Corsair Force 60GB SSD (operating system is here)
Keyboard, mouse and IR blaster connected by USB (this is a media center PC)

Originally I had the 2 seagate drives in RAID1 with 2 partitions. The drives would vanish. Thinking this was a raid problem, I migrated the OS to the SSD and now run the seagates as separate drives. This did not fix the problem.

The only way to resolve this issue is a reboot.

The system and the drives are configured never to sleep. The bios was configured for RAID, it is now AHCI (for the SSD). I'm using the latest bios, and latest sata drivers from windows update

I'm stumped, can anyone help?

[Dark Mantis]

Hi

Well the only thing that springs to mind for the drives to be ok for that length of time and then disappear is that something is overheating slowly. Maybe the drives, maybe the controller. This would be in keeping with the fact that it is a media centre PC and they more often have issues with heat etc.

[MacBurp]

I don't think this is the issue because
- my case is a Coolermaster ATX. THE PC performs media centre duties but does not sit under the TV. There's plenty of room inside for air circulation and I have a 12cm fan working fine.
- Core Temp shows temperature inside at 25-30oC, well within operating parameters
- if it was a heat problem, would not the drives fail at different times? Particularly as one drive is an SSD

Any further thoughts / comments welcome

[absic]

Hi there,

I know you say that you have altered the power saving options in Windows but what Graphics Card are you using?

If it is an ATI card and you are running the latest drivers check under Catalyst Control Centre as this has introduced a Power Saving Option and it caught me out.