Blue screens randomly after buying new parts.

So I recently bought new parts for my computer and upon installing them and installing 64bit win 7 I have been receiving tons of blue screens.

I got a EVGA GTX 560 Ti for the graphics card, and I got 4x 4gb DDR3 memory sticks.


My specs:

GIGABYTE GA-EP43T-UD3L LGA 775 Intel P43 ATX Intel Motherboard Rev 1.0 (This supports 16GB of RAM)
Intel Core 2 Quad Q8300 Yorkfield 2.5GHz LGA 775 95W Quad-Core
CORSAIR Vengeance 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
EVGA 01G-P3-1561-AR GeForce GTX 560 Ti FPB (Fermi) 1GB 256-bit GDDR5 PCI Express 2.0 x16
650W PSU

(I copy/pasted most of that from Newegg.)


Recently I've been receiving tons of blue screens that point to Nvidia drivers being faulty, I've tried downgrading the driver versions to see if that did anything, and I still receive blue screens and program crashes. I have ran Memtest86 on all 4 RAM sticks at once, and it had errors halfway through the scan, but when I ran Memtest86 on two sticks on the "Blue" slots, it showed no errors. I then ran the other two memory sticks on the "White" slots and showed no errors, I was able to function just fine with no blue screens on the computer for hours with only two memory sticks in.

It appears that when there are 4 memory sticks, it isn't uncommon to get blue screens. I have installed all my windows updates also. What could be wrong?