Instruction manual

120 Chapter 4

Troubleshooting

To configure the A20 Digital Motherboard and BIOS

When you replace the A20 digital motherboard, you need to confirm the jumper settings

for the specific CPU installed. The jumper settings information is provided in “Configure

the Motherboard” on page 120.

You also need to confirm the BIOS options using the BIOS setup utility procedure. The

BIOS setup procedure is described in “To Confirm or Set the BIOS Options” on page 121.

To Identify the Motherboard Installed

Confirm the splash screen is displayed in the beginning of the boot process as shown in

Figure 4-6.

Configure the Motherboard

There is a jumper on the A20 digital motherboard that must be configured to the correct

setting. Confirm that the jumper setting is “Normal” as shown in Figure 4-26.

Figure 4-26 A20 digital motherboard jumpers location and settings

Testing DRAM on the Motherboard

When the A20 digital motherboard is replaced with a new one, it is advisable to perform

the DRAM test before proceeding to the BIOS setup utility procedure. Confirm the DRAM

count in accordance with the following procedure.

Step 1. Connect the external keyboard and mouse to the E5061A/E5062A rear panel connectors.