Asus A7V400-MX SE User Manual page 27

1 . 1 . 1 . C P U e x t e r n a l f r e q u e n c y s e l e c t i o n ( D S W S w i t c h e s 1 - 5 ) C P U e x t e r n a l f r e q u e n c y s e l e c t i o n ( D S W S w i t c h e s 1 - 5 )
1 . 1 . C P U e x t e r n a l f r e q u e n c y s e l e c t i o n ( D S W S w i t c h e s 1 - 5 ) C P U e x t e r n a l f r e q u e n c y s e l e c t i o n ( D S W S w i t c h e s 1 - 5 ) C P U e x t e r n a l f r e q u e n c y s e l e c t i o n ( D S W S w i t c h e s 1 - 5 )
The motherboard frequency is adjusted through the DIP switches.
The white block represents the switch position. The illustration below
shows the ON and OFF positions of the switches.
A7V400-MX SE
A7V400-MX SE DIP switches
The option to set the CPU core bus frequency multiple is available only
on unlocked CPUs. If you are using a locked CPU, setting the switches
does not produce any effect.
The DSW switch tells the clock generator what frequency to send the
CPU. 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).
The default CPU external frequency is 100 MHz. If your CPU supports
200/166/133 MHz external frequency, adjust the DSW settings before
installing the motherboard to the chassis.
A7V400-MX SE
A7V400-MX SE CPU
external frequency selection
Set the CPU frequency only to the recommended settings. Frequencies
other than the recommended CPU bus frequencies are not guaranteed to
be stable.
A S U S A 7 V 4 0 0 - M X S E A S U S A 7 V 4 0 0 - M X S E
A S U S A 7 V 4 0 0 - M X S E A S U S A 7 V 4 0 0 - M X S E A S U S A 7 V 4 0 0 - M X S E
(Default)
1 2 3 4 5
O
ON
N
OFF
100MHz
66.67MHz
33.33MHz
DSW
1 2 3 4 5 1 2 3 4 5
O O
N N
CPU 200MHz 166.67MHz
AGP 66.67MHz 66.67MHz
PCI 33.33MHz 33.33MHz
F S B F S B F S B F S B F S B C P U E x t e r n a l F r e q u e n c y C P U E x t e r n a l F r e q u e n c y C P U E x t e r n a l F r e q u e n c y C P U E x t e r n a l F r e q u e n c y C P U E x t e r n a l F r e q u e n c y
400
333
266
200
(Default)
1 2 3 4 5 1 2 3 4 5
O O
N N
100MHz
133.33MHz
66.67MHz
66.67MHz
33.33MHz
33.33MHz
200 MHz
166 MHz
133 MHz
100 MHz
1 - 1 7 1 - 1 7
1 - 1 7 1 - 1 7 1 - 1 7