Computer attempts to load OS then restarts, infinite loop.

Recently I have been having an issue with my computer where it loads past the BIOS but when it gets to where it says "Loading Operating System," it simply restarts and does it all over again. Originally the computer wasn't getting to the BIOS at all, but after checking my RAM I found that one of them was causing an issue, which lead to getting past the BIOS, but I am now having this issue.

I have been able to load a Windows install disc by booting through the CD drive, however once the installation is complete it simply logs off, restarts, and goes through the infinite loop again. I've tried this all with only one stick of RAM in, as well as with a completely new hard drive (edit: as in, this is happening with two hard drives, one completely new), and absolutely nothing is working. I have also reset the mobo by taking the battery out, as well as using the BIOS menu to set it to factory defaults. Nada.

I'm tearing my hair out here - any suggestions?

Specs:
OS: Windows 7 64 bit Ultimate
CPU: intel i5-2500
GPU: Radeon HD 6950 1GB GDDRS
PSU: Antec Gold Rated 750w
RAM: GSKILL DDR3-1600 4GBx2 (x4 - one in currently)
MOBO: Gigabyte Z68XP-UD3
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More about computer attempts load restarts infinite loop
  1. Check your hard drive health status. Use Hirens' boot disk - there are several utilities on there. Or, preferably, a HDD health checker program from the drive manufacturer that will report SMART status.
  2. Karsten75 said:
    Check your hard drive health status. Use Hirens' boot disk - there are several utilities on there. Or, preferably, a HDD health checker program from the drive manufacturer that will report SMART status.

    Would the hard drive really be the issue, even though I've tried it with two separate drives, one fresh out of the box? I'll work on what you suggested, though.
  3. well, thank you for sharing that in the OP. Having used two different drives eliminates the drive from the likely contenders.
  4. Karsten75 said:
    well, thank you for sharing that in the OP. Having used two different drives eliminates the drive from the likely contenders.


    My apologies - I thought I had mentioned that but I guess I worded it poorly. I've edited it to curb confusion.
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