ecs kn3 sli2 cold boot problem

[zach0624]

Sometimes after an occasional cold boot when i power on my computer all the fans and stuff turn on but the hard drives don't spool up and the system won't post. To get it to work I have to unplug it several times and when it boots again the cmos is whiped out destroying my oc(while not a lot took long time to tweak). I have had some problems with certain sata and ide ports working on and off(after the rma period of course). Any help is appreciated