IBM 8651RM0 Hardware Maintenance Manual - Page 155

BIOS Boot Block Jumper Setting J6A1

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J6A1 Recovery 1 BIOS Recovery 1 23 3. If the primary processor board blocks access to the jumper, remove it (see "Processor or Memory Board" on page 121). 4. Move the jumper to pins 2 and 3. This enables the recovery mode. 5. If you removed the primary processor board, install it. 6. Replace the top cover. 7. Insert the flash memory update diskette into the primary diskette drive (usually drive A). 8. Connect the power cable to the server. 9. 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. 10. Power-off the server and all peripheral devices, remove the top cover (see "Cover (Top)" on page 72), and move the jumper back to its original position (pins 1 and 2, factory default). BIOS Boot Block Jumper Setting (J6A1) Note Do not mistake this jumper block for the ones on either side. To be able to program the boot block: 1. Power-off the server and peripheral devices and remove the top cover (see "Cover (Top)" on page 72). 2. Identify the BIOS boot block jumper, J6A1. IBM Netfinity 7000 - Type 8651 147

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Recovery
1
J6A1
1
23
BIOS Recovery
3.
If the primary processor board blocks access to the
jumper, remove it (see “Processor or Memory Board”
on page
121).
4.
Move the jumper to pins 2 and 3.
This enables the
recovery mode.
5.
If you removed the primary processor board, install it.
6.
Replace the top cover.
7.
Insert the flash memory update diskette into the
primary diskette drive (usually drive A).
8.
Connect the power cable to the server.
9.
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.
10.
Power-off the server and all peripheral devices,
remove the top cover (see “Cover (Top)” on
page
72), and move the jumper back to its original
position (pins 1 and 2, factory default).
BIOS Boot Block Jumper Setting (J6A1)
Note
Do not mistake this jumper block for the ones on
either side.
To be able to program the boot block:
1.
Power-off the server and peripheral devices and
remove the top cover (see “Cover (Top)” on
page 72).
2.
Identify the BIOS boot block jumper, J6A1.
IBM Netfinity 7000 - Type 8651
147