Fresh Built, and constant BSOD

I am very sorry for not mentioning my specs. I have checked the voltage, and it is running at 1.5V for my DDR3 RAM.

Specs:
- XFX HD-577X-ZNFC Radeon HD 5770
- G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM
- GIGABYTE GA-770TA-UD3 AM3 AMD 770 SATA 6Gb/s USB 3.0 ATX AMD Motherboard
- Seagate Barracuda 7200.12 ST3500418AS 500GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
- COOLER MASTER RC-690-KKN1-GP Black SECC/ ABS ATX Mid Tower Computer Case
- AMD Athlon II X3 440 Rana 3.0GHz Socket AM3 95W Triple-Core Desktop Processor
- LITE-ON CD/DVD Burner - Bulk Black SATA Model iHAS124-04 - OEM
- OCZ ModXStream Pro OCZ600MXSP 600W ATX12V V2.2 / EPS12V SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC Power Supply compatible with core i7

One thing i don't get the most is what is the correct to mount the motherboard to the case? Does it matter how I mount it to the case? A friend have told me that the manual would tell you exactly which spots you should put the screws in. And another thing, the case or the motherboard didn't came with any standard screws, just the bronze ones that you use to mount the underneath of the motherboard.

Today I have tested with my older Power Supply, and Graphic Card. They both have the same BSOD(0x0000001a). I have attempted change into an older IDE hard drive and install Windows 7 64-Bit. I have received the following BSOD during the Windows installation:

0x00000050(0xFFFFF8802443DC38, 0x0000000000000000, 0xFFFFF8000CFBD7CA, 0x0000000000000002)

This is my very time building a computer, and it's been a very unpleasant experience. If i have made any mistakes, please correct me.

EDIT: I believe I probably should return the Motherboard and RAM, since I don't have an extra pair of DDR3 RAM to test. I have purchased everything from NewEgg. Although I shop in there frequently, I have never returned anything to Newegg before. How are you experience returning items to Newegg?

I don't know what kind of G.SKILL memory you have exactly, but you should know two things:

-Gigabyte AM3 and G.SKILL don't get along on a regular basis.
-If you bought G.SKILL memory that doesn't specifically say it plays nice with AM3, the settings on the box are lies and you'll have to research the *AM3-APPROPRIATE* settings if you're interested in anything other than constant BSODs.

I know this because trying to untangle this G.SKILL/Gigabyte AM3 mess has been my life for the past four days. Rest assured I won't be dumb enough to combine the two again...

You can also try updating your motherboard's BIOS.

Wow you guys are right!! I just bought a new pair of RAMs today. And headache solved! Thanks guys!