GIGABYTE GA-8I915P-MF - Manual (Page 43)

BIOS Setup - 43 -
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2-7 MB Intelligent Tweaker(M.I.T.)
CPU Clock Ratio
This setup option will automatically assign by CPU detection.
The option will display "Locked" and read only if the CPU ratio is not changeable.
Memory Frequency For
Wrong frequency may make system can't boot, clear CMOS to overcome wrong frequency issue.
for FSB(Front Side Bus) frequency=800MHz,
2.0 Memory Frequency = Host clock X 2.0.
2.66 Memory Frequency = Host clock X 2.66.
Auto Set Memory frequency by DRAM SPD data. (Default value)
Memory Frequency (Mhz)
The values depend on "Memory Frequency For" item.
Incorrect using these features may cause your system broken. For power end-user use only.
CMOS Setup Utility-Copyright (C) 1984-2004 Award Software
MB Intelligent Tweaker(M.I.T.)
CPU Clock Ratio [15X]
Memory Frequency For [Auto]
Memory Frequency (Mhz) 400
KLJI: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help
F5: Previous Values F6: Fail-Save Default F7: Optimized Defaults
Item Help
Menu Level`
CPU Smart FAN Mode
This option is available only when CPU Smart FAN Control is enabled.
Auto BIOS autodetects the type of CPU fan you installed and sets the optimal CPU Smart
FAN control mode for it. (Default value)
Voltage Set to Voltage when you use a CPU fan with a 3-pin fan power cable.
PWM Set to PWM when you use a CPU fan with a 4-pin fan power cable.
In fact, the Voltage option can be used for CPU fans with 3-pin or 4-pin power cables.
However, some 4-pin CPU fan power cables are not designed following Intel 4-wire fans
PWM control specifications. With such CPU fans, selecting PWM will not effectively reduce
the fan speed.