Agilent Technologies E4991A Service Manual page 162

Troubleshooting
Booting Process Troubleshooting (for serial prefix JP1KH, JP2KH, and
MY432)
Step 1. Video BIOS Boot
Video BIOS title screen shown in Figure 4-7 is displayed first, when the E4991A turned
on. If the Video BIOS title screen doesn't displayed, go to "No Display Troubleshooting"
on page 158.
Figure 4-7 A: Video BIOS Title Screen
Step 2. BIOS, RAM Counting
BIOS logo screen shown in Figure 4-8 describes the BIOS name, model number of the
Digital Motherboard, CPU type and RAM size on the Digital Motherboard, and type of the
Mass Storage.
If the message is displayed, you can assume that A20 Digital Motherboard, CPU and
DIMM64MB are functioning correctly.
If the E4991A stops during checking RAM, you can assume problem is in the A20, or
DIMM64MB.
NOTE Hit
to run SETUP" is displayed during RUM counting, if you want run the BIOS setup utility.
It is able to be the followings using the BIOS setup utility. For details of the BIOS options
the E4991A is specified, refer to "To Confirm or Set the BIOS Options" on page 200.
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•
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key on the external keyboard as soon as the message of "Hit DEL if you want
[Delete]
to set the system date and time
to change the first boot device (if you want to boot from floppy disk, it is necessary to
change it.)
to confirm the BIOS options
Chapter 4