Reset the cmos and restarted. Made the ncessary changes in the bios to get raid disks started and still have the same issue.
The USB headers are connected to a multiple slot card and front panel usb slots that are not working. Bios v 672 1.18 x64 build date 07/01/2011 14.36.31, probably not the latest however the system worked for several weeks prior to the ports disabling.
Have now discovered that not all the USB ports are defunct. Actually appears to be just the 2.0 ones. Have got the keyboard and mouse working again by connecting a dell multimedia kb to to a usb 3 port and connecting the mouse to an extender port on the kb.
To me it still sounds like a defective board. I'll go and check what the latest bios is for the board and what issues it says have been resolved.
I did see other posts on the forums here regarding usb port issues with mother boards that had usb 3 support on them.
I see 3 bios flashes for this mobo, a119, a120 and a121. None of them appear to use the same numbering that I see in my bios when I change setting, where dod I actually find the bios number?
Are those 3 flash packages cumulative? I see nothinguntoward in them and wanted to know if I should apply all 3 in sequence or just the latest one?
<message edited by viafax999 on Sunday, August 12, 2012 2:47 PM>