Appendix B System Board Settings - NEC POWERMATE PROFESSIONAL - SERVICE MANUAL 05-1997 Service Manual

Appendix B
System Board Settings
This appendix provides jumper setting information for configuring a system that has specific
requirements.
Situations that require changing the jumper settings include the following:
T
changing the processor speed setting
T
recovering the BIOS
T
denying access to CMOS Setup
T
resetting the password
T
clearing the system board CMOS values and restoring the default settings.
The system board in the computer contains a 24-pin block of configuration jumpers in a
2 x 12 array.
NOTE: The clear CMOS jumper is intended to
be used only if the BIOS has been corrupted
during a BIOS upgrade. A description of how to
use the jumper is found later in this section under
"BIOS Recovery."
CAUTION: Jumpers are set correctly at the factory
for the configuration.
If the system requires a jumper change, change
only the setting for that condition. Otherwise,
keep the settings at their factory settings.