X38-ds4 . strange error

[junpei]

Me and my friend have been having a rather strange problem with this board.

we overclocked our processors, timed our ram. everything ran nice.

but when we leave them off overnight and in the morning

first: they fail to POST
secondly: it reboots itself
thirdly: it puts the bios settings back to defaults
fouth: i put them back at the overclock and it works fine

any ideas?

 

[junpei]

yeah. i had my oc stable, i could reboot it no problems.

but when we leave it off over night or for more than about 5 hours. we get a fresh boot with the clocks disabled, its not completely reset though. just everything goes back to auto and we have to set manual. all our volt mods are still there.

 

[junpei]

im on F2 now, havent had the problem again yet. i have change some stuff now though. like my memory multiplier is now 2.0 instead of 2.66. i thought that might be the cause of my instability as my friend with the same problem also had his set at 2.66.

he got the error this morning when he booted up too, so i told him to re-adjust his clocks so its 2.0 and see if it happens again tmorrow

 

[junpei]

prime 95 all 4 cores for 5 hours
memtest ( 4 instances to cover all the ram ) for 2 hours

the thing is, we can reboot normally. turn it off for half an hour or so. but it seem more than about 6 hours, and it fails to post resets the bios and loads on second boot