This is how it usually goes: Everything seems to be going normally, then, without warning, the computer crashes straight to a restart, and after the mobo splash screen, I get the message "NTLDR is missing."
When I manually power off, restart and go into the UEFI, I see that my SSD, which has the MBR on it, is gone from my 2 boot option priorities and is now third in the list of Hard Drive BBS Priorities. I change it back to my SSD, save changes, and it boots fine.
Rinse and repeat. This seems to happen completely randomly. I could not even be using the computer, be loading a web page, telling it to shut down. Anything. I can't pinpoint it.
Here's what I've tried so far:
- Updated Mobo firmware
- Updated SSD firmware
- Updated drivers for as much as I could think of
- Unplugged the SATA cables and plugged them back in
- Reformatted and reinstalled Windows
Here's my system specs:
- Windows 7 64-bit Home Premium
- ASRock P67 Extreme4 Gen3 mobo
- Crucial M4 64GB SSD
- Samsung Spinpoint F3 1TB
- XFX ATI Radeon HD 6950 2 GB
What is your PSU? It can be failing and causing the reboots.
It's a Corsair TX750M. How can I tell if that's what is causing the crashes?
Here's some more info regarding the crashes:
I can tell it's about to crash when the computer semi-freezes. I can't really click anything other than some random things. I can't ctrl+alt+del to pull up Task Manager, but sometimes a dialogue box pops up asking to "end task," which I obviously can't click.
When it finally crashes, the whole screen goes black except for an inch strip at the top full of artifacted random colored pixels.
I totally forgot about this other tidbit. If I go right into the UEFI Setup after a crash, without letting it display the "NTLDR is missing" message, my SSD is not detected in the SATA3 ports at all. If I power down from the UEFI and power up again, I still get the "NTLDR is missing" but the drive is detected and I can select it as the boot drive again.
It makes me wonder if the SSD or the SATA ports are the problem.