Asus A7VL133-VM - Manual (Page 54)

ASUS A7VL133-VM User’s Manual 54
4. BIOS SETUP
4. BIOS SETUP
4.4 Advanced Menu
Advanced
Menu
Operating Frequency Setting [User Define]
When the motherboard is set to JumperFree™ mode, this field allows you
to configure the external frequency of your CPU. Select [User Define] if
you want to make changes to the CPU Frequency field. When [Standard]
is selected, CPU (external) Frequency will be fixed at 100MHz. Configu-
ration options: [Standard] [User Define]
CPU Frequency (if Operating Frequency is set to [User Define])
This feature tells the clock generator which frequency to send to the system
bus and PCI bus. The bus frequency (external frequency0 multiplied by the
bus frequency equals the CPU speed (the CPU’s internal frequency). Note
that selecting a frequency higher than what the CPU manufacturer
recommends may cause the system to hang or crash. See System Hangup
later in this section.
DRAM Frequency
This field determines whether the memory clock frequency is set to be in
synchronous or asynchronous mode with respect to the CPU Frequency.
This must be set in conjunction with CPU (external) Frequency to match
the speed of your SDRAM. When you press on this field, the first
available option in the pop-up menu equals the CPU Frequency you select
for the previous field, and the second available option is the CPU Frequency
multiplied by 4/3. To maintain and ensure system stability, DRAM Fre-
quency is set to [100 MHz] when the BIOS setup default settings are loaded/
selected.