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10/25/2010

Coolbits in Nvidia Driver

Adding "Coolbits" option in Nvidia config to enable GPU overclocking menu

in /etc/X11/xorg.conf
add this line under "Screen" section
Option    "Coolbits"  "1"

So it becomes:
Section "Screen"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "TwinView" "0"
    Option         "metamodes" "CRT: nvidia-auto-select +0+0"
    Option         "Coolbits" "1"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

In some system, it doesn't work if adding under "Screen" section.
Try adding under "Device" section.

Setting Coolbits to other numbers give different configurations

Coolbits 4 : enable fan control , but disable freq control
Coolbits 5 : enable both fan and freq control

Others, see manual
ref: http://us.download.nvidia.com/XFree86/Linux-x86/190.53/README/appendix-b.html

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