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Display adapter and CPU jumper settings
Jumper
Setting
Function
J3 A*
Enable the built-in VGA adapter
B
Disable the built-in VGA adapter so
you can use a display adapter on an
option card as your primary adapter
J4
A
**
Select DX or DX2 CPU
B
Select SX CPU
* Factory setting
** Factory set according to system CPU
External cache jumper settings
*
Factory setting; change jumpers only if external cache chips are installed
by servicer
DIP switch settings
Switch
Setting
Function
1
**
ON
33 MHz CPU speed
OFF
25 MHz CPU speed
2
**
ON
25 MHz CPU speed
OFF
33 MHz CPU speed
3
**
ON CPU present in PGA socket
OFF CPU absent from PGAsocket
4
ON*
Enable’password security feature
OFF
Disable password security feature
5
ON*
Select color monitor
OFF Select monochrome monitor
* Factory setting
** Factory set according to system type
Installing and Removing Options
4-7