Table 3-3. Password/CMOS System Board Jumper Summary

 

 

Jumper On/Off

 

Jumper

Function

(default in bold)

What it does at system reset.

A

CMOS clear

Off, Protect

Preserves the contents of CMOS.

 

 

On, Erase

Clears CMOS.

 

 

 

 

B

Password disable

Off, Enable

Enables password protection.

 

 

On, Disable

Disables the password.

C

Reserved

Off, Not Used

Do Not Change.

 

 

 

 

Moving System Board Jumpers

!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.

Clearing CMOS

Clear CMOS as follows.

1.Shut down the OS.

2.Press the POWER switch to turn off the power of the server. (The POWER/SLEEP lamp goes off.)

3.Remove the side cover. Refer to Chapter 4 for information on removing the side cover.

4.Remove the system power cord from the back of the system.

5.Locate the position of the CMOS jumper on the system board.

See Figure 3-1. To change a jumper setting, use a pair of needle-nose pliers or your fingers to remove the jumper from its current location. Position the jumper over the two pins shown at Figure 3-1, A and press it onto the pins. Be careful not to bend the pins. Also refer to Table 3-3 for system board jumper setting descriptions.

6.Connect the power cord, power on the system and after POST completes, power down the system and unplug the power cord.

7.Remove the CMOS jumper to its original position.

8.Replace the side cover, connect the power cord, and power on the system.

9.Press F2 at the prompt to run the BIOS Setup utility, and select “Get Default Values” at the Exit menu.

Configuring Your System 3-23

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NEC 120Lg manual Moving System Board Jumpers, Clearing Cmos, Password/CMOS System Board Jumper Summary