NEC ES1400, User Manual, Page: 117 / 188

Problem Solving 5-15
Enable F2 Prompt by Changing a Jumper and Using SSU
If you do not have an SSU diskette or CD available, you can clear
CMOS memory to enable the
F2 prompt. This means you must change
a jumper on the system board, run the SSU, save your changes, and
change the jumper back to the default setting.
!
CAUTION
This procedure resets all to default settings: C
learing
CMOS memory resets all SSU and Setup settings to their
defaults, not just the CMOS CLR setting. Before proceeding,
check that you have a backup paper copy of configuration.
Referring to the worksheets could make your reconfiguration
task easier.
1.
Observe the safety and ESD precautions stated at the beginning of
this chapter.
2. Turn off all connected peripherals, turn off system power, and
disconnect the AC power cord.
3. Remove the side cover. Refer to the “Upgrades and Options” chapter
for information on removing the side cover. You do not need to
remove the system board from the chassis, and you probably do not
need to remove any add-in boards.
4. Locate the CMOS configuration jumper at the edge of the system
board toward the front of the system. Refer to the “Configuring Your
System” chapter for information on the location of the CMOS
jumper.
5. Move the CMOS CLR jumper from the CMOS Protect setting on pins
1 and 2 to the CMOS Clear setting on pins 2 and 3.
6.
Reinstall the side cover for your safety, and connect the power cord
to the system.
7. Power on the system. POST starts and halts displaying an “Invalid
CMOS Settings” error.
8. Turn off the system, and disconnect the power cord.
9.
Again remove the side cover.
10. Move the CMOS CLR jumper from pins 2 and 3 back to pins 1 and 2
(the Protect CMOS memory position).
11. Reinstall the side cover, and connect the power cord.
12.
Turn the system on. Run BIOS Setup (F2) to verify the correct
settings. Refer to Chapter 3 for information on running BIOS Setup.