This pretty much makes me put 3 components at possible blame: fans, hard drive, power supply. I myself have not had any problem in NY during the really cold week I was starting it in the morning at like 9 Deg F. Anycase, you don't say what psu your using or I'm just blind. I'm just going to assume opus or another dc-dc sol'n.Quote:
15-40°F boots to BIOS or windows load screen then keeps rebooting about 1-7 times before 70% of the times getting to a completed booted windows and 30% of the time power supply stays on but never boots up just seems to give up on booting and powers down video but fans and usb continue running.
below 15°F Does not show BIOs drive makes quite a racket first time thought drive was totally dead but still worked fine once it warmed.
see, what I think is happening is as the weather is getting colder, the mechanical parts, particularly the hard drive is causing more current usage trying to spin up to speed due to the extra friction. This additional usage may be something your psu is incapable of supply causing the no boot issue.
other possibility is the psu just is no good in the cold. Check out the power supply forum, i know theres a couple of posts there about opus and under voltage in cold weather. 14 deg seems to be right around that troubule point. that can be why the computer is no booting up or is having a real hard time.
and of course, the hard drive can just be one of those units that don't like the cold around here. its sorta like a lottery draw when it comes to hard drives and cold weather performance.