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CPU Frequency Multiple
When using an unlocked CPU and when the CPU Speed is set to [Manual], this
field sets the frequency multiple between the CPU's internal frequency (CPU
speed) and external frequency. Set this field in conjunction with CPU Frequency
(MHz) to match the speed of the CPU.
CPU External Frequency (MHz)
(when CPU Speed is set to [Manual])
This feature tells the clock generator what frequency to send to the system bus
and PCI bus. The bus frequency (external frequency) multiplied by the bus multiple
equals the CPU speed.
Memory Frequency [Auto]
This field determines whether the memory clock frequency is set to be in
synchronous or asynchronous mode with respect to the system frequency. The
options that appear in the popup menu vary according to the CPU Frequency [
].
MHz
Configuration options: [Auto] [200MHz] [266MHz] [333MHz] [400MHz]
CPU VCore Setting [Auto]
The [Manual] setting allows you to manually select the core voltage supplied to the
CPU (see next item). However, it is recommended that you keep the default setting
[Auto] to allow the system to automatically determine the appropriate CPU core
voltage. Configuration options: [Auto] [Manual]
CPU VCore [1.xxxV]
When the CPU VCore Setting parameter above is set to [Manual], the CPU VCore
item allows you to select a specific CPU core voltage. This field is not accessible
when the CPU VCore Setting is set to [Auto].
DDR Voltage Adjustment [Auto]
This item controls the DDR operating voltage.
Configuration options: [2.5V] [2.6V] [2.7V] [Auto]
CPU Level 2 Cache [Enabled]
This field allows you to choose from the default [Enabled] or choose [Disabled] to
turn on or off the CPU Level 2 built-in cache.
Configuration options: [Disabled] [Enabled]
BIOS Update [Enabled]
This field functions as an update loader integrated into the BIOS to supply the
processor with the required data. When set to [Enabled], the BIOS loads the
update on all processors during system bootup.
Configuration options: [Disabled] [Enabled]
PS/2 Mouse Function Control [Auto]
The default setting [Auto] allows the system to detect a PS/2 mouse at startup. If a
mouse is detected, the BIOS assigns IRQ12 to the PS/2 mouse. Otherwise, IRQ12
can be used for expansion cards.
2-14
Chapter 2: BIOS Setup
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