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Overclocking 101...

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Alrighty, I was pointed in this direction for some OC fun. I'm a rookie on this subkect and have never really played around with my hardware. My current gaming rig is:



Processor: Intel® Core2 CPU 6600 @ 2.40GHz (2 CPUs)

Memory: 4gb RAM corsair XMS DDR2 (1024x6400 W/ 800Mhz)

Hard Drive: 150 GB Raptor

Video Card: NVIDIA GeForce 8800 GTX (by Evga)

Monitor: SyncMaster 226BW(Digital)

Sound Card: SB X-Fi Audio [bF00] (Extreme Gamer)


Monitor- Samsung 226 1680:1050

Operating System: Vista Ultimate (32) with all updates.


My CPU temp idles around 35-39 celsius. I have a Thermaltake V1 cooling fan. I used the Nvdia monitor to establish my GPU temp. It shows it at 72 celsius.

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You already know you have to set your DRAM to 667MHz so I will not go through that again. :)


Download CoreTemp - Information Regarding the VID and Thermal Output of Your CPUHere


Download Prime95 - The DeFacto Standard for testing a CPUs stability and this version is for the Quad CoreHere


Open CoreTemp. What is your VID.


Enter your BIOS and set to these values:



JumperFree Configuration

AI Tuning = Manual

Overclock Options = Disabled


System Clocks

NB PCI-e Frequency (MHz) = 100


Voltage Control

Vcore Voltage = 1.35

Memory Voltage = 2.013v

NB Core Voltage = 1.393


FSB & Memory Config

FSB - Memory Clock Mode = Unlinked

FSB - Memory Ratio = 1:1

FSB (QDR) = 320




Memory Timing Setting

tCL = 5

tRCD = 5

tRP = 5

tRAS = 18

Command Per Clock = 2 Clocks

tRRD = Auto

tRC = Auto

tWR = Auto

tWTR = Auto

tREF = Auto

tRD = 7

tRFC = 114

Async Latency = Auto

CPU Spread Spectrum = Auto

PCIE Spread Spectrum = Auto

SATA Spread Spectrum = Auto

LDT Spread Spectrum = Auto

LDT Frequency = 4x


USB Configuration

USB Controllers = Enabled

USB Legacy Support = Disabled (Disable when you memtest. Enable afterwards if you have usb keyboard)

USB 2.0 Controller = Enabled


What is your VID?


Download Memtest. Extract the ISO image and burn to an optical disk. Boot to the optical disk and allow for two full passes. If no errors occur, then you can enter Windows and begin to Prime95 your system. Prime for ~8 hours. You can use the system while you prime.


This overclock will give you an 800Mhz DRAM configuration and a 2.8GHz overclock which is not high. A good start and it allows you to see if you maintain stability with 4 DRAM Banks populated on an overclock.

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FSB & Memory Config

FSB - Memory Clock Mode = Unlinked

FSB - Memory Ratio = 1:1

FSB (QDR) = 320


Regarding this section. I cant change the ratio to 1:1 with it in unlinked. I also cant drop the FSB(QDR) to 320.

FSB - Memory Clock Mode = Unlinked

FSB - Memory Ratio = Auto

FSB (QDR) = 1280


Try this.

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