VIA 693A ATX
MAINBOARD
HARDWARE SETUP
3-17
(F) SWITCH SETTINGS
There is one "toggle switch" designed on the mainboard to select the CPU clock
ratio. Basically, you have to check the specification of your CPU carefully because
some of the CPU does not allow you to change its default clock ratio setting. In
another word. The switch setting on the mainboard will have no function when
you are using the processor whose clock ratio is "locked" inside the CPU.
1
2
3
4
ON
SW
(toggle switch)
DIMM3
BIOS
DIMM2
DIMM1
+
Note: SW setting will have no function when the clock ratio is
“locked” in the CPU .
Settings of the toggle switch:
CPU (MHz)
Clock Ratio
SW1
SW2
SW3
SW4
233, 350
3.5X
OFF
OFF
ON
ON
266, 400
4.0X
ON
ON
OFF
ON
300, 450
4.5X
OFF
ON
OFF
ON
333, 500
5.0X
ON
OFF
OFF
ON
366, 550
5.5X
OFF
OFF
OFF
ON
400, 600
6.0X
ON
ON
ON
OFF
433, 650
6.5X
OFF
ON
ON
OFF
466, 700
7.0X
ON
OFF
ON
OFF
500, 750
7.5X
OFF
OFF
ON
OFF
533, 800
8.0X
ON
ON
OFF
OFF
Note: In most case, you don't have to use the switch setting to
select the CPU clock ratio because it can be detected by the
mainboard automatically.
