Computer does not boot up to Login screen w/Safe Mode/Last Known Conf

Hi, Microsoft Community
I got a major issue with my PC... I left my PC running and suddenly had a memory dump and computer shuts down and after that it keeps reseting. It doesn't load up to the login screen only the windows loading after that it resets again and again.
At first I thought its a RAM issue so I took out the 2 RAM sticks, changed them up plugged one in and so on. Still no go.
I tried the following:
Safe Mode
Last Known Configuration
Repair your computer
Took out the Graphics Card
Reseted BIOS (CMOS)
I got 3 different BSOD Codes:
0x0000007B (0xFFFFF880009A998, 0xFFFFFFFFC000000E, 0x0000000000000000, 0x0000000000000000)
BAD_POOL_HEADER
0x00000019 (0x0000000000000020, 0xFFFFFA8004A3DEC0, 0xFFFFFA8004A3DED0, 0x00000000050146D0)
BAD_POOL_CALLER
0x000000C2 (0x0000000000000007, 0x000000000000109B, 0x00000000046417F0, 0xFFFFFA8004641800)
I only got these BSOD when I've did "Disable automatic restart on system failure"
I do not have a repair disk or windows disc since I lost them along with my other discs when building the PC.
Please Help. Any help is grateful, Thank you! :(
EDIT: Windows 7 Ultimate, 3.3GHz AMD Bulldozer, 8GB RAM, AMD 7770 GPU

Hi,
According to your description, the situation now is that you're unable to boot up the system and we're unable to get the dump file to make a further analysis. Did you get any other additional error messages when booting the system?
System fails after several attempts, so you might need a external media to recovery the system, or do a reinstallation, you can also take the PC to the vender if it is under guarantee in case it might be related with some hardware issues.
Yolanda Zhu
TechNet Community Support

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