Jumpers: dell, Optiplex, G1 systems – Dell OptiPlex G1 User Manual
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Jumpers: Dell
™
OptiPlex
™
G1 Systems
= jumpered
= unjumpered
For Celeron™ microprocessors, speed jumper setting are no longer required since settings are coded internally.
1
Either the 450 MHz or 400 MHz speed jumper pins must have a jumper plug installed.
2
One set of the speed jumper pins must have a jumper plug installed; otherwise, the system defaults to an undetermined speed.
3
As of April 19, 1999, the processor speed jumper was set at 266 MHz on Dell OptiPlex system boards shipped from the factory.
500MHZ
Jumpered when the microprocessor's internal speed is 500 MHz.
450MHZ
1
Jumpered when the microprocessor's internal speed is 450 MHz.
400MHZ
1
Jumpered for Pentium II™ microprocessor when the internal speed is 400 MHz.
Internally set for Celeron microprocessor.
350MHZ
2
Jumpered when the microprocessor's internal speed is 350 MHz.
333MHZ
2
Jumpered when the microprocessor's internal speed is 333 MHz.
300MHZ
2
Jumpered when the microprocessor's internal speed is 300 MHz.
266MHZ
3
Jumpered for 266 MHz.
BUS66M
(default)
External system clock speed is 66 MHz when jumpered.
External system clock speed operates at 100 MHz when not jumpered.
BIOS
(default)
Reserved. Do not change.
PSWD
(default)
Password features are enabled.
Password features are disabled.