NEC Express5800/140Hb, Руководство по обслуживанию

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Configuring Your System 3-27
Clearing CMOS and Password
!
CAUTION
Before doing the procedures in this section, make sure that
your system is powered off and unplug the AC power cords
from the back of the chassis. Failure to disconnect power
before moving the jumpers can result in personal injury and
equipment damage.
Observe static precautions. Use an antistatic wrist strap.
!
CAUTION
Clearing CMOS is not recommended. Important factory
default settings will be lost when clearing CMOS unless
previously recorded.
To clear CMOS and password:
1. Record all system BIOS settings before continuing with this procedure.
2. Remove the processor cover. See Removing the Processor Cover in
chapter 4. Set the processor cover aside for reinstallation later.
3. Remove the spare jumper from pins 11 and 12 on system function jumper
block, see Figure 3-2.
4. If clearing CMOS, reinstall the spare jumper on pins 1 and 2 (CMOS clear)
of system function jumper block. Otherwise, go to next step.
5.
If clearing password, reinstall the spare jumper on pins 3 and 4 (Password
disable) of system function jumper block. Otherwise, go to next step.
6. Reinstall the processor cover removed in step 2 above. See Installing the
Processor Cover in chapter 4.
7. While waiting for POST to complete, press the F2 key to enter BIOS setup.
This automatically clears CMOS and all passwords, provided you exit and
save the BIOS setup.
8. Repeat step 2 of these procedures.
9. Remove the jumper you just installed on the system function jumper block
and place it back on pins 11 and 12 as the spare jumper.
10. Reinstall the processor cover removed in step 2 above. See Installing the
Processor Cover in chapter 4.
11. If specifying a new password run the BIOS Setup Utility as described earlier
in this chapter.
12.
Run the BIOS Setup Utility as described earlier in this chapter. Check all the
system BIOS settings to ensure that they are equivalent to the BIOS settings
recorded in step 1 above.