Asus A7V266 Motherboard DIY Troubleshooting Guide - Page 19

ASUS A7V266 User's Manual, CPU External Frequency Selection DIP_SW Switches 1-4, Manual CPU Ratio - m motherboard

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3. HARDWARE SETUP 2) CPU External Frequency Selection (DIP_SW Switches 1-4) This option tells the clock generator what frequency to send to the CPU, DRAM, and the PCI bus. This allows the selection of the CPU's External frequency (or BUS Clock). The BUS Clock multiplied by the Frequency Multiple equals the CPU's Internal frequency (the advertised CPU speed). 3. H/W SETUP Motherboard Settings 01 01 01 01 01 01 SYSCLK ON 1234 ON 1234 ON 1234 ON 1234 CPU 100MHz 133.33MHz 140MHz AGP 60.67MHz 66.67MHz 70MHz (JumperFree Mode) A7V266 PCI 33.33MHz 33.33MHz 35MHz A7V266 CPU External Frequency Selection WARNING! Set the CPU frequency only to the recommended settings. Frequencies other than the recommended CPU bus frequencies are not guaranteed to be stable. Overclocking the processor is not recommended. It may result in a slower speed. 3) Manual CPU Ratio Settings (DSW Switches 5-10) Set DSW switches (5-10) to use the clock multiplier to coordinate the ratio of bus speeds with CPU settings. Set the DSW switches according to the internal speed of your processor and the bus frequency (133/100MHz). IMPORTANT: 1. To use this feature, JEN must be set to Jumper Mode, [1-2]. (See 1, JumperFree™ Mode (JEN) in 3, HARDWARE SETUP.) 2. When JumperFree mode is enabled, use BIOS setup in place of these switches. (Set Operating Frequency Setting to User Define under 4.4 Advanced Menu in BIOS Setup so you can set the CPU Frequency.) CPU_RATIO ON ON ON ON 12345 CPU_RATIO 8X ON 12345 8.5X ON 12345 9X ON 12345 9.5X 12345 12345 12345 A7V266 CPU_RATIO 10X 10.5X (JumperFree Mode) A7V266 CPU External Clock (BUS) Frequency Selection ASUS A7V266 User's Manual 19

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ASUS A7V266 User’s Manual
19
3. HARDWARE SETUP
3. H/W SETUP
Motherboard Settings
2)
CPU External Frequency Selection (DIP_SW Switches 1–4)
This option tells the clock generator what frequency to send to the CPU, DRAM,
and the PCI bus. This allows the selection of the CPU’s
External
frequency (or
BUS Clock
). The BUS Clock multiplied by the Frequency Multiple equals the
CPU’s
Internal
frequency (the advertised CPU speed).
WARNING!
Set the CPU frequency only to the recommended settings. Frequencies
other than the recommended CPU bus frequencies are not guaranteed to be stable.
Overclocking the processor is not recommended. It may result in
a slower speed.
A7V266
0
1
0
1
0
1
A7V266 CPU External
Frequency Selection
SYSCLK
CPU
AGP
PCI
100MHz
60.67MHz
33.33MHz
(JumperFree Mode)
140MHz
70MHz
35MHz
133.33MHz
66.67MHz
33.33MHz
ON
12
34
ON
12
34
ON
12
34
ON
12
34
A7V266 CPU External
Clock (BUS) Frequency
Selection
CPU_RATIO
ON
12345
ON
12345
ON
12345
ON
12345
ON
12345
ON
12345
ON
12345
CPU_RATIO
8X
CPU_RATIO
10X
10.5X
8.5X
9X
9.5X
(JumperFree Mode)
A7V266
0
1
0
1
0
1
3)
Manual CPU Ratio Settings
(DSW Switches 5-10)
Set DSW switches (5-10) to use the clock multiplier to coordinate the ratio of
bus speeds with CPU settings.
Set the DSW switches according to the internal
speed of your processor and the bus frequency (133/100MHz).
IMPORTANT:
1.
To use this feature, JEN must be set to Jumper Mode, [1-2].
(
See
1, JumperFree™ Mode (JEN)
in
3,
HARDWARE SETUP.)
2.
When JumperFree mode is enabled, use BIOS setup in place of these switches.
(Set
Operating Frequency Setting
to
User Define
under
4.4 Advanced Menu
in BIOS Setup so you can set the
CPU Frequency
.)