GTL ref I changed to x0.640 (from 0.630) for first die (core 0 & 1).

I upped vTT to 1.24v and I bumped the vCore up 1.34375v & 1.14vNB got 450fsb stable. I did a 1:30 hr of 450 with x8 cpu multi.

I just went back to 450 x 8 and back to 1.3vCore; and I will leave it running before I tweak again.

The thing I am concerned about is 3.6Ghz with 1.3 but 3.8Ghz not stable with 1.34375v, is that normal? The cpu is rated for about 1.38v max:http://processorfinder.intel.com/det...px?sSpec=SLB8V

ASUS P5Q DLX Template :

JumperFree Configuration Settings
AI Overclock tuner: Enabled
CPU Ratio Setting: 8.5
FSB Strap to North Bridge: 333
FSB Frequency: 450
PCI-E Frequency: 100
DRAM Frequency: 5:6
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: Manual

1st Information :

CAS# Latency: 5
DRAM RAS# to CAS# Delay: 5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge: 18
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time: 55
Write Recovery Time: AUTO
Read to Precharge Time: AUTO

2nd Information :

READ to WRITE Delay (S/D): AUTO
Write to Read Delay (S): AUTO
WRITE to READ Delay (D): AUTO
READ to READ Delay (S): AUTO
READ to READ Delay (D): AUTO
WRITE to WRITE Delay (S): AUTO
WRITE to WRITE Delay (D): AUTO

3rd Information :

WRITE to PRE Delay: AUTO
READ to PRE Delay: AUTO
PRE to PRE Delay: AUTO
ALL PRE to ACT Delay: AUTO
ALL PRE to REF Delay: AUTO
DRAM Static Read Control: Disabled
DRAM Read Training: Disabled
MEM. OC Charger: AUTO
AI Clock Twister: AUTO
AI Transaction Booster: AUTO
Common Performance Level [5]
Pull-In of CHA PH1: DISABLED
Pull-In of CHA PH2: DISABLED
Pull-In of CHA PH3: DISABLED
Pull-In of CHA PH4: DISABLED
Pull-In of CHB PH1: DISABLED
Pull-In of CHB PH2: DISABLED
Pull-In of CHB PH3: DISABLED
Pull-In of CHB PH4: DISABLED

CPU Voltage: 1.34375
CPU GTL Voltage Reference (0/2): 0.640
CPU GTL Voltage Reference (1/3): 0.670
CPU PLL Voltage: 1.52 (+0.02 over default)
FSB Termination Voltage: 1.24 (+0.14 over default for 45nm cpu)
DRAM Voltage: 1.9v (Using the old crucial ram like crucial anniversary so I'm not held back by Corsair xms6400c5 2x2Gb)
NB Voltage: 1.14(+0.04 over default)
NB GTL Reference: AUTO
SBridge Voltage: 1.1 or minimum
PCIE SATA Voltage: 1.5 or minimum