Okay here are my 3.8GHz settings. Stable 6 hours small FFT's and Linpack 15 passes. Yes, my QX9650 is a dog.

PHP Code:
Extreme Tweaker
AI Overclock Tuner:  Manual
OC From CPU Level Up:  Auto
CPU Ratio Control:  Manual
-Ratio CMOS Setting:  9.5
FSB Frequency:  400
CPU Clock Skew:  Normal
North Bridge Clock Skew:  Normal
FSB Strap to North Bridge:  Normal
DRAM Frequency: DDR2-1066
DRAM Clock Skew CH1 A1:  Auto
DRAM Clock Skew CH1 A2:  Auto
DRAM Clock Skew CH1 B1:  Auto
DRAM Clock Skew CH1 B2:  Auto


DRAM Timing Control:  Manual
CAS# Latency:  5
RAS# to CAS# Delay:  5
RAS# Precharge:  5
RAS# Activate Time:  12
RAS# to RAS# Delay:  3
Row Refresh Cycle Time:  35
Write Recovery Time:  6
Read to Precharge Time:  3

Read to Write Delay (S/D):  7
Write to Read Delay (S):  3
Write to Read Delay (D):  5
Read to Read Delay (S):  4
Read to Read Delay (D):  6
Write to Write Delay (S):  4
Write to Write Delay (D):  6

Write to Pre Delay:  14
Read to Pre Delay:  5
Pre to Pre Delay:  1
All Pre to ACT Delay:  5
All Pre to REF Delay:  5

DRAM Static Read Control:  Enabled
DRAM Read Training:  Disabled
MEM OC Charger:  Disabled
AI Clock Twister:  Strong
Transaction Booster:  Manual
Common Performance Level [7]

Pull-In of CHA PH1:  Disabled
Pull-In of CHA PH2:  Disabled
Pull-In of CHA PH3:  Disabled
Pull-In of CHB PH1:  Disabled
Pull-In of CHB PH2:  Disabled
Pull-In of CHB PH3:  Disabled

PCI-E Frequency:  101

CPU Voltage:  1.31875V 
CPU PLL Voltage:  1.53975V
FSBT:  1.23250V
DRAM Voltage:  2.09150V
North Bridge Voltage:  1.23250V
South Bridge Voltage 1.5:  1.50000V
South Bridge Voltage 1.1:  1.10000V

CPU GTL Reference 0:  Auto
CPU GTL Reference 1:  -50mV
CPU GTL Reference 2:  Auto
CPU GTL Reference 3:  -45mV
North Bridge GTL Reference:  Auto
DDR2 Channel A REF Voltage:  Auto
DDR2 Channel B REF Voltage:  Auto
North Bridge DDR Reference:  Auto

Load Line Calibration:  Enabled
CPU Spread Spectrum:  Disabled
PCI-E Spread Spectrum:  Disabled 
I still might be able to tweak my Vcore a little but I've got some folding to do right now.