Constant BSOD after fresh reinstall

Hello I have quite a big problem and I can't find any help.

Basically I reinstalled my Windows 7 after formatting everything on my HDD and now I get BSOD constantly.
Here is what I tried:

1. Did another fresh reinstall (formated everything again) -didnt work
2. Got 2 new 4GB RAM sticks. BSOD kept happening. Strangely when I used Memtest86 it detected about 30 errors but I put the new sticks in another computer and Memtest86 found no errors.. (Video RAM problem?)
3. Uninstalled all drivers and installed most recent ones. -didnt work
4. Updated Windows -didnt work
5. My GPU CD installed a program called GPU Tweak and whenever I tried to close that program I always got a BSOD. I uninstalled it but it kept happening (the GPU is 1 month old and works 100% on different PC)

Also I used bluescreenview to inspect the BSOD. Before uninstalling GPU Tweak most of the BSOD were caused by IOMap64.sys . BUT every single BSOD is caused by ntoskrnl.exe ! All of them !
BSOD also caused by :ntfs.sys ,atikmdag.sys!

The BSOD errors are : NTFS_FILE_SYSTEM(very rare) SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION (99% of the time) and PAGE_FAULT_IN_NONPAGED_AREA ( also kinda rare)

My specs : AMD Phenom II X3 710 Proccesor 2.60 GHz ; 8GB Ram ; ATI Raedon R7 260x GPU;

I will provide every additional info if needed . Please help me ! Thank you !

Here is the zip with the dump files!