Configuring System Board Jumpers

Before You Begin

Only a qualified technical person should perform the procedures in this section.

!CAUTION

Electrostatic discharge (ESD) can damage the system board. Modify the system board only at an ESD workstation. Otherwise, wear an antistatic wrist strap attached to chassis ground.

The system board jumpers enable you to set specific operating parameters for your system. A jumper is a small plastic-encased conductor (shorting plug) that slips over two jumper pins.

Figure 3-1 shows the location of system board jumpers. Referring to Figure 3-1, jumper A is the CMOS clear configuration jumper. Jumper B shown in Figure 3-1 is the password clear configuration jumper. Table 3-3 lists the factory default settings for the CMOS and password configuration jumpers.

CMOS CLR: Pin for protecting/ clearing the CMOS contents (The figure shows the factory-set.)

PASSWD CLR: Pin for protecting/ clearing the password

: Strapped

CMOS PASSWD RECOVERY BMC FLASH

CLR CLR BOOT EN

B

AC

ACMOS Clear

BPassword Clear

CFactory Setting (Do not change)

Figure 3-1. System Board Jumpers

3-22 Configuring Your System

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NEC 120Lg manual Configuring System Board Jumpers, Before You Begin