lets see if your orthos lasts 8 hours. I could do 3 hours at 3.6 with my chip. What's your batch code? What volts are you using? please give detailed bios info. for example:

AI Tuning: Manual
Nvidia GPU Ex: Disabled
LinkBoost: Disabled

FSB - Memory Clock Mode: Unlinked
x FSB - Memory Raio: N/A
FSB (QDR), Mhz: 1600 (means 400FSB)
Actual FSB (QDR), Mhz: 1600
MEM (DDR), Mhz: 800 (means 400mhz speeds)
Actual MEM (DDR), Mhz: 880.2

Vcore Voltage: 1.525 set (1.42v bios/1.41v windows idle/1.39v windows load)
Memory Voltage: 2.100v
1.2v HT Voltage: 1.3v
NB Core Voltage: 1.4v
SB Core Voltage: 1.55v
CPU VTT Voltage: 1.4v
DDRII Controller Ref Voltage: AUTO
DDRII Channel A Ref Voltage: AUTO
DDRII Channel B Ref Voltage: AUTO

tCL (CAS Latency): 4
tRCD: 4
tRP: 4
tRAS: 12
Command Per Clock (CMD): 2 clock (2T)

Advance Memory Settings
tRRD: AUTO
tRC: AUTO
tWR: AUTO
tWTR: AUTO
tREF: AUTO
Async Latency: AUTO

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
MCP PCIE Spread Spectrum: Disabled
SATA Spread Spectrum: Disabled
LDT Spread Spectrum: Disabled

CPU Internal Thermal Control: Disabled
Limit CPUID MaxVal: Disabled
Enhanced C1 (C1E): Disabled
Execute Disable Bit: Disabled
Virtualization Technology: Disabled
Enhanced Intel Speedstep Tech: Disabled
LDT Frequency: 5x

PCIEX16_1 Frequency (Mhz): 100
PCIEX16_2 Frequency (Mhz): 100
PCIEX16_3 Frequency (Mhz): 100
SPP<->MCP Ref Clock, Mhz: 200