Hi Rufass
The Asus P6T has 2 profiles saved on an overclocked system, if you goto the Bios and Tools - Asus OC Profile
There are 2 Profiles saved in grey at the top of the list
3XSStandard
3XSOverclock
If the bios has reset the Raid controllers that have been turned off in our profiles are enabled and this is what is causing the hardware to be detected
Load Profile 1 for Standard Settings (Some games ie World of Warcraft dont like overclocked systems so you can use this profile for example)
Load Profile 2 for the overclocked profile
Please let us know if you are still having issues
Ben