Intel GA-G1975X - Manual (Page 51)

BIOS Setup - 51 -
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Robust Graphics Booster
Select the options can enhance the VGA graphics card bandwidth to get higher performance.
Auto Set Robust Graphics Booster to Auto. (Default value)
Fast Set Robust Graphics Booster to Fast.
Turbo Set Robust Graphics Booster to Turbo.
C.I.A.2
C.I.A.2 (CPU Intelligent Accelerator 2) is designed to detect CPU loading during software program
executing, and automatically adjust CPU computing power to maximize system performance.
Disabled Disable this function. (Default value)
Cruise Set C.I.A.2 to Cruise. Automatically increase CPU frequency(5%,7%) by CPU
loading.
Sports Set C.I.A.2 to Sports. Automatically increase CPU frequency(7%,9%) by CPU
loading.
Racing Set C.I.A.2 to Racing. Automatically increase CPU frequency(9%,11%) by CPU
loading.
Turbo Set C.I.A.2 to Turbo. Automatically increase CPU frequency(15,17%) by CPU
loading.
Full Thrust Set C.I.A.2 to Full Thrust. Automatically increase CPU frequency(17%,19%) by
CPU loading.
Warning: Stability is highly dependent on system components.
CPU Host Clock Control
Disabled Disable CPU Host Clock Control. (Default value)
Enabled Enable CPU Host Clock Control.
CPU Host Frequency(Mhz)
100Mhz ~ 600Mhz Set CPU Host Clock from 100Mhz to 600Mhz.
The actual range depends on the CPU you install.
If you use an 800Mhz FSB processor, please set CPU Host Frequency to 200Mhz.
If you use a 1066Mhz FSB processor, please set CPU Host Frequency to 266Mhz.
PCI Express Frequency(Mhz)
Auto Set PCI Express frequency automatically. (Default value)
90Mhz ~ 150Mhz Set PCI Express frequency from 90Mhz to 150Mhz.
PCI Frequency(Mhz)
Auto Set PCI frequency automatically. (Default value)
33.3Mhz ~ 37.5Mhz Set PCI frequency from 33.3Mhz to 37.5Mhz.
System Memory Multiplier
Wrong frequency may make system can't boot, clear CMOS to overcome wrong frequency issue.
for FSB(Front Side Bus) frequency=1066MHz,
1.50 Memory Frequency = Host clock X 1.50.
2.00 Memory Frequency = Host clock X 2.00.
2.50 Memory Frequency = Host clock X 2.50.
2.0+ Memory Frequency = Host clock X 2.0+.
2.66 Memory Frequency = Host clock X 2.66.
3.33 Memory Frequency = Host clock X 3.33.
3.00 Memory Frequency = Host clock X 3.00.
4.00 Memory Frequency = Host clock X 4.00.
Auto Set Memory frequency by DRAM SPD data. (Default value)