Windows 7: BSOD While Booting, Safe mode doesn't work, new build

Hello everyone,

I just built a desktop with brand new hardware, all except the hard drive, which is taken from my old system. The hard drive has the OS from my old system (which was working fine) plus all of the data.

Now, the hardware on the system seem to be working fine, but it goes to BSOD on boot.

System specifications:
Windows 7 Ultimate Edition 64bit (Retail;Original OS)
Asus P8Z68-v LX
Zotac Geforce GTX 560
Intel Core i-7 2600k Sandy Bridge
8 gb ram Corsair
700W power supply

Here is the boot process:
1. ASUS logo from P8Z68-V keyboard
2. "Starting Windows" screen (the 4 colored dots move, in the process of becoming the windows logo)
3. The dots freeze for about half a second
4. BSOD: STOP 0x0000007B 0xFFFFF880009A97E8 0xFFFFFFFFC0000034 0x0000000000 0x0000000000

I've tried System Restore and Startup Repair Tool, neither does a thing. I've also tried to start the system with Safe Mode, but the same BSOD happens.

Because I can't get into Windows, there's no way for me to run any of the diagnostics tools.

Does anyone know of what the problem is and how I can fix it? Been working on it the whole day and it's driving me crazy...

If there is any additional information I can provide, please post.

Any help is appreciated, thank you so much!!

FIXED!!!

After messing for hours with the BIOS, I fixed the problem by switching SATA mode from AHCI to IDE mode.

Can someone explain to me how this made everything boot properly?