ASRock B75 Pro3 Memory Issues

[MaceWinn]

Got this board a week and a half ago and tried to use 2x2gigs of G.Skill RAM. At first the computer wouldn't POST at all so we tried one stick of RAM in the 3rd slot on the mobo. Still wouldn't boot at all so we tried the other stick in the same slot and it booted up fine. We ordered 2 new sticks of 4gig G.Skill and at first both sticks worked as soon as we put them in. However after 8 hours of use the PC blue screened. After a few BSODs, we tried moving the RAM around. PC went back to not posting at all in any order we had the RAM in the board. So we tried 1 stick of RAM in the 3rd slot again and no POST. Tried the other stick and the board booted up fine. What could be going on here? Is the board killing sticks of RAM? Here are the specs:

ASRock B75 Pro3
i5 3570k
2x4g G.Skill
Corsair 750 watt

[- wardog -]

Kinda short with specifics but have you looked at what the bios is setting the ram voltage to?

[MaceWinn]

Yes.

http://i.imgur.com/DTfU5.jpg
http://i.imgur.com/d8yTR.jpg

All looks good, right?

[- wardog -]

Again, without knowing what specific p/n your memory is I can't say.

1.585v should be that awful threatening though.

[MaceWinn]

G.Skill 2x4 F3-10666CL9D-8GBXL

Should the board do some sort of POST with no memory installed? Cause it just sits at no signal on the monitors.