Computer Repeatedly Crashing on Start-Up

[TheStoryteller]

My computer is running Windows 7.

Recently, (specifically, starting tonight) when I turn on the PC, all of the computer lights turn on, it boots up, gets to the BIOS screen, then crashes before loading Windows. I am able to access the BIOS, and it doesn't seem to crash when I do so. But, if I don't do anything before the BIOS window shuts, the computer crashes and restarts.

 

[Tradesman1]

Could be a number of things, do you have a different pSU you can try? Make sure all the power connections are snug? In the BIOS can you get to the health area and check temps?

 

[TheStoryteller]

Could be a number of things, do you have a different pSU you can try? Make sure all the power connections are snug? In the BIOS can you get to the health area and check temps?

I found that I was able to launch into Windows 7 installation with my Windows 7 disc, without any issues of crashing, leading me to believe that it is a problem with Windows. Unfortunately, I am unable to launch into my desktop, making it impossible to fix the problem without formatting my drive, and on top of that, I recently changed the drive to GPT, in order to partition a part of my drive that could not be partitioned in MBR. My computer will not allow me to install Windows on the GPT drives.