NEC HX4500 manual Setting Switches and Jumpers

Setting Switches and Jumpers

!CAUTION

Before doing the procedures in this section, make sure that your system is powered off. 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.

Note: Observe static precautions. Use an antistatic wrist strap.

Change the setting of any of the configuration switches or jumpers on any of the system boards as follows.

1.Power off the system and remove the covers as described in Chapter 5, “Problem Solving.”

2.Check to ensure the system power cords are removed from the back of the system.

3.Locate the switch or jumper you are changing (see Figure 3-4).

4.To change a switch setting, use a pen or your finger to move the switch to the desired setting. 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 for the desired setting and press it onto the pins. Be careful not to bend the pins. See Table 3-10 for board switch or jumper settings.

5.Record changes to the board settings in Table 3-10.

6.Install the system covers and power up the system.

7.Run the Setup Utility to verify your reconfiguration of the board.

3-24 Configuring Your System