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 **
O N
33 MHz CPU speed
O F F
25 MHz CPU speed
2**
O N
25 MHz CPU speed
O F F
33 MHz CPU speed
3 **
O N
CPU present in PGA socket
O F F
CPU absent from PGAsocket
4
O N *
Enable’password security feature
O F F
Disable password security feature
5
O N *
Select color monitor
O F F
Select monochrome monitor
* Factory setting
** Factory set according to system type
Installing and Removing Options
4-7
