IBM 704 User Manual

Page 312

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Setting System-Board Configuration Jumpers

Before you start, be sure that you have:

Read “Electrical Safety” on page 75 and “Handling
Static-Sensitive Devices” on page 77.

Removed the left side cover (as viewed from the front of the
server; see “Removing the Side Covers” on page 81).

To recover the BIOS, do the following:

1. Identify the BIOS recovery jumper, J6A1.

Recovery

1

J6A1

1 2 3

BIOS Recovery

2. If the processor board blocks access to the jumper, remove it

(see steps 2 through 5 on page 106).

3. Move the jumper to pins 2 and 3. This enables the recovery

mode.

4. If you removed the processor board, install it (see steps 12 on

page 108 through 12e on page 110).

5. Insert the flash memory update diskette into the primary

diskette drive (usually drive A).

6. Connect the power cable to the server.

7. Start the server.

After the server successfully completes POST, the speaker emits
a single beep and the recovery process starts (the process takes
about three minutes). During the recovery process, no messages
are displayed on the monitor, and the keyboard is disabled.
When the recovery process is complete, the server emits two
beeps.

294

PC Server 704 User's Handbook

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