Black screen with no cursor, then reboot before login screen?

CxRizzle

Distinguished
May 24, 2013
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Recently clean installed Windows 10 64bit along with all Windows updates and mobo drivers on my gaming desktop. All was going well till a few days ago, when I turned my computer on, it showed the ASUS BIOS splash screen, then the Windows loading screen like it always does, but, instead of going to the login screen, it remained black. No cursor, nothing. Eventually my monitor popped up with a "No signal" window, like if I had turned on my monitor without my desktop being powered on. After about 10-20 seconds, my computer rebooted on it's own then it loaded up like nothing ever happened. This very same thing happened today as well. Seems to only happen if my computer has been off for an extended period of time of 24+ hours. Shows no problems at all during regular use, gaming or even intense stress tests such as x264, Prime95 or RealBench. Memtest86 shows no errors either.

After these occurred, there are events listed in Event Viewer. One of which being a Critical Event: Kernel Power Error 41. Stating that the computer lost power unexpectedly. I unfortunately no longer have the log due to me deleting the event, though. I have no overclocks other than an XMP for my RAM. All my hardware is less than 6 months old, and I haven't used and abused them because I don't game all that much these days.

Why would this be happening? It doesn't really affect computer use, but it's still irritating.
 

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