Bios Recovery; Bios Recovery Jumper - NEC PowerMate P2166 Series Service Manual

B-4 Setting System Board Jumpers
6. Replace the system unit cover (see "Replacing the Desktop Cover" or "Replacing
the Minitower Cover" in Section 3).
7. Power on the system.

BIOS RECOVERY

If an interruption occurs during the BIOS upgrade that prevents continuation of the
process, it is possible that the BIOS may be left in an unstable state. Use the following
procedure to recover the BIOS.
Power off the system and unplug any peripherals.
1.
Remove the system unit cover (see "Removing the Desktop Cover" or "Removing
2.
the Minitower Cover" in Section 3).
Locate the BIOS Recovery jumper J6C2 on the system board (see Figure B-1).
3.
4. You may have to remove any installed expansion boards to access the jumpers
(see "Removing Expansion Boards" in Section 3).
5. Move the jumper block to the Recovery Mode pins (see the following figure).
Replace the system unit cover (see "Replacing the Desktop Cover" or
6.
"Replacing the Minitower Cover" in Section 3).
7. Connect system power cables and monitor.
WARNING: The system power must be off
before removing the cover and changing a
jumper setting.
BIOS Recovery J6C2
Normal Operation (Default)
Jumper 2-1
Recovery Mode
Jumper 3-2
Figure B-3 BIOS Recovery Jumper
3 1
6 4
3 1
6 4