Thx Grnfinger and A-Grey

I took u guys advices and now I am stable @ 430fsb x8 with 1:1 ratio, PL8, 5-4-4-15 (ran 1 hr everest stability test... currently running ortho overnight)

I know my NB temp was high so I added a TT Spirit II (still waiting for my HR-05 SLI IFX to come) to NB and Enzotech Cooper HS to SB.

under load,
vcore read 1.296, all 4 core topped @ 60 C, NB topped @ 60 C

I tried 438 fsb / 440 fsb with unchange settings, but all failed within 20 sec of loading... did I hit a wall? I want to get 3.6GHz stable...

My bio settings:
Code:
// Extreme Tweaker //
Ai Overclock Tuner : Manual 
OC From CPU Level Up : Auto
CPU Ratio Setting : 8.0
FSB Strap to North Bridge : 400MHz
FSB Frequency : 430
PCI-E Frequency : 100

DRAM Frequency : DDR2-860MHz
DRAM Command Rate : 2N
DRAM CMD Skew on Channel A : Auto
DRAM CMD Skew on Channel B : Auto
DRAM CLK Skew on Channel A : Auto
DRAM CLK Skew on Channel B : Auto
DRAM Timing Control : Manual

1st Information : 5-4-4-15-3-50-6-3
CAS# Latency : 5
RAS# to CAS# Delay : 4
RAS# PRE Time : 4
RAS# ACT Time : 15
RAS# to RAS# Delay : Auto
REF Cycle Time: 50
Write Recovery Time : Auto
Read to Precharge Time : Auto

2nd Information : 8-3-5-4-6-4-6
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 : 14-5-1-5-5
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
Ai Clock Twister : Strong
Transaction Booster : Manual

Common Performance Lvl: 8
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 : 1.34375V
CPU PLL Voltage : 1.50V
North Bridge Voltage : 1.43V
DRAM Voltage : 2.18V
FSB Termination Voltage : 1.44V
South Bridge Voltage : Auto
SB 1.5V Voltage : Auto
Loadline Calibration : Disabled
CPU GTL Voltage Reference : 0.67x
NB GTL Voltage Reference : 0.67x
DRAM Controller Voltage REF : Auto
DRAM Channel A Voltage REF : Auto
DRAM Channel B Voltage REF : Auto

CPU Spread Spectrum : Disabled 
PCIE Spread Spectrum : Disabled 
CPU Clock Skew : Auto
NB Clock Skew : Auto

// Advanced // CPU Configuration //
CPU Ratio Control : 8
C1E Suppport : Disabled 
CPU TM Function : Auto
Vanderpool Technology : Disabled 
Execute Disable Bit : Disabled 
Max CPUID Value Limit : Disabled