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Overclock my Q9450 to 3.0 or 3.2GHz


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Can anyone help me how to overclock my processor (Intel Quad Core Q9450, 2.66GHz) to 3.0 - 3.2GHz and I have 4GB of TWIN2X4096-8500C5DF



Here is my BIOS setting


BIOS with BOLD text can be change, without bold text can not be change as it show status text only



Robust Graphics Booster Auto - [Auto]

CPU Clock Ratio - [8]


Fine CPU Clock Ratio +0.0

CPU Frequency 2.66GHz (333x8)


CPU Host Clock Control_ [Disabled]


CPU Host Frequency (MHz)__________ [333]


PCI Express Frequency (Mhz)_______ [Auto]

C.I.A. 2 [Disabled]

Performance Enhance = [standard]

System Memory Multiplier (SPD)____ [Auto]

Memory Frequency(Mhz) 1066 1066

DRAM Timing Selectable_______ SPD __ [Manual]


CAS Latency Time________________ 5

Dram RAS# to CAS# Delay_________ 5

Dram RAS# Precharge Delay_______5

Precharge Delay (tRAS)__________ 15


ACT to ACT Delay(tRRD)_________ 3(AUTO)

Rank Write to READ Delay________ 3(AUTO)

Write to Precharge Delay_________ 6(AUTO)

Refresh to ACT Delay_____________52(AUTO)

Read to Precharge Delay__________ 3(AUTO)

Static tRead Value_______________ 7(AUTO)

Static tRead Phase Adjust________ 25(AUTO)


System Voltage Control____ [Manual]

DDR2 OverVoltage Control__ [+0.30V]

PCI-E OverVoltage Control_ [Normal]

FSB OverVoltage Control___ [Normal]

(G)MCH OverVoltage Control [Normal

Loadline Calibration________[Auto]

CPU Voltage Control_______ [Normal]

Normal CPU Vcore ________1.2370V


Many thanks


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Download Memtest86+ V2.01 from--->

Download CPU-z from

Enter your BIOS. On the main BIOS screen press Ctrl + F1. You will see the screen flicker. Next select the MB Intelligent Tweaker option. On that screen you will see many additional settings that were not there before.


[b]MIB Intelligent Tweaker (M.I.T.)[/b]

[indent]CPU Clock Ratio = 8
CPU Host Clock Control = Enabled
CPU Host Frequency (Mhz) = 410Mhz
PCI Express Frequency = 100Mhz
C.I.A.2 = Disabled
System Memory Multiplier = 2.6
DRAM Timing Selectable = Manual
CAS Latency Time = 5
DRAM RAS# to CAS# Delay = 5
RAS# Precharge = 5
Precharge Delay (tRAS) = 15
ACT to ACT delay = Auto
Bank Write To READ Delay = Auto
Refresh to ACT Delay = 0
Read to Precharge Delay = Auto
Memory Performance Enhance = Normal
Dimm OverVoltage Control = +.3V
PCI-e OverVoltage Control = Normal
(G)MCH OverVoltage Control = +.02
CPU Voltage Control = Auto
Robust Graphics Booster = Auto[/indent]

I don't think you will need to change your voltages for anything but the DRAM and MCH. Boot to the optical drive with the Memtest disk and allow for two full passes. This will give your quad core a 3.28Ghz and 1066Mhz on the DRAM.

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Thanks for that and I have one little problem


I not have 2.60 from System Memory Multiplier list and i did pick 2.50 and my DDR have set to 1025 but i would like it goal at 1066 or maybe try to overclock my ddr a bit more?


The board I have is revision 2.0 (P35-DS4)


Can you help me? thanks




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What cooler are you using for your CPU?


To be certain of both CPU and Memory stability and thermal dissipation, use the Intel Linpack CPU/Memory test.


Download Realtemp from Here


Run Linpack for full memory (1) and use a 5 pass iteration. Run Real Temp and watch the temperatures. Let the Linpack program run for the full 5 passes. The output in the screen will give you five sets of values. They should be identical for a stable CPU and DRAM.


What are the highest temperatures running Linpack with 410 X 8?

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