Acer Veriton 7900Pro, Service Manual

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52 Chapter 2
Frequency Control
Parameter Description
CPU Clock Ratio This item allows to adjust CPU clock ratio.
However, if your CPU is locked, you’ll see the
words here turn to gray which means you can do
nothing about it.
Another item you could often see in Frequency
Control section would be “Host CPU/DIMM/PCI
Clock”. You can adjust external clock via this item. 16x
Auto Detect PCI Clk To reduce the occurrence of electromagnetic
interference (EMI), the BIOS detects the presence
or absence of components in DIMM and PCI slots
and turns off system clock generator pulses to
empty slots. Enabled
Disabled
Spread Spectrum This feature allows to enable/disable the Spread
Spectrum modulate. Enabled
Disabled
CPU Clock Ratio [16 x]
Auto Detect PCI Clk [Disabled]
Spread Spectrum [Enabled]
F5:Previous Values F7:Default Settings
KLIJ
:Move Enter: Select +/-/PU/PD :Value F10:Save ESC:Exit F1:General Help
Phoenix - AwardBIOS CMOS Setup Utility
Frequency Control
Item Help
Menu Level X