I keep getting BSOD with the P5Q Deluxe. I've tried everything I can think of...

I get the BSOD randomly. Which can happen with an overclock and at stock. I've tried MEMTest and also OCCT Ram tests for several hours and also done these tests with all 4 sticks of RAM in the PC and each stick singly.
Both tests 100% fine.

CPU Temps are fine on the Q6600 Quad (38c per core)

I've tried a new PSU... dumped my Seasonic 600Watt and put in a 1000Watt Enermax (I know overkill!) and still the BSOD.

I've tried everything on Default and also setting the voltages manually... still BSOD.

But stressing it for large amounts of time does not cause it to happen.

Is there any way I can get more info from these BSODs so I am able to know where the problem is?

I'm running at the moment Vista Ultimate 64. I have tried Windows XP 32 and XP 64. All have the same issue.
I've tried BIOS 0704, 0803, 1103 now i'm back to 0610 (which is the most stable i've been on this board but still getting BSODs now and then)

Any help appreciated!