Asus A7V-E Motherboard DIY Troubleshooting Guide - Page 53

ASUS A7V-E User's Manual, CPU Frequency, Frequency, DRAM Fre, quency

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4. BIOS SETUP 4.4 Advanced Menu 4. BIOS SETUP 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. Configuration options: [Standard] [User Define] CPU Frequency (when Operating Frequency Setting is set to [User Define]) 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 (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 Frequency is set to [100 MHz] when the BIOS setup default settings are loaded/ selected. ASUS A7V-E User's Manual 53

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ASUS A7V-E User’s Manual
53
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 (when Operating Frequency Setting
is set to [User Define])
This feature tells the clock generator what frequency to send to
the system bus and PCI bus. The bus frequency (external fre-
quency) multiplied by the bus multiple 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 <Enter> 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.