Hi everyone! I'm trying to get the best performance out of my Q6600, but I can only get it to 3GHz (prime-stable). If I give it more FSB, prime crashes and I get a BSOD in Vista.

The Hardware I use:
QuadCore Q6600
Thermalright tower
Asus P5Q Deluxe
4x 2GB G.Skill PC2-8000U CL5-5-5-15 (DDR2-1000)
SeaSonic 500W PSU

And here are the Biossettings (Ai Tweaker):
CPU Ratio Setting - [Auto]
FSB Frequency - [333] ( CPU-Z says 334 real) (9x333=3GHz)
PCIE Frequency - [100]
FSB Strap to North Bridgle - [Auto]
DRAM Frequency - [DDR2-890MHz]
DRAM CLK Skew on Channel A1 - [Auto]
DRAM CLK Skew on Channel A2 - [Auto]
DRAM CLK Skew on Channel B1 - [Auto]
DRAM CLK Skew on Channel B2 - [Auto]
DRAM Timing Control - [Auto]

DRAM Static Read Control - [Disabled]
DRAM Read Training - [Disabled]
MEM. OC Charger - [Enabled]
Ai Click Twister - [Light]

CPU Voltage - [Auto] ( CPU-Z says 1,41V real! Is this ok (24/7)?)
CPU GTL Voltage Reference (0/2) - [Auto]
CPU GTL Voltage Reference (1/3) - [Auto]
CPU PPL Voltage - [Auto]
FSB Termination Voltage - [Auto]
DRAM Voltage - [2.06]
NB Voltage - [Auto]
NB GTL Reference - [Auto]
SB Voltage - [Auto]
PCIE SATA Voltage - [Auto]

Load-Line Calibration - [Enabled]
CPU Spread Spectrum - [Disabled]
PCIE Spread Spectrum - [Disabled]
CPU Clock Skew - [Normal]
NBClock Skew - [Normal]
CPU Margin Enhancement - [Optimized]

I've read now, that the CPU Margin Enhancement should work better in "performance" for Quads, other say, that it could damage the CPU. And then there is of course the Bios version. Currently I'm running 1004 (out-of-the-box). Some now say, that version 0803 is the best (works without CPU Margin Enhancement) and others say, version 1406 is the one to go for (and not to forget v.1302). And then there are of course the modded ones here. I really could use some help here...

Thank you very much!
Sick