Hard Disk Drive Leds; Recovering From A Post/Bios Update Failure - IBM 84885BU Maintenance And Troubleshooting Manual

Hard disk drive LEDs

If the amber hard disk drive status LED on the front of a hard disk drive is lit
continuously, it indicates a problem; see "Diagnostic error LEDs" on page 109.

Recovering from a POST/BIOS update failure

If power to the server is interrupted while POST/BIOS code is being updated (flash
update), the server might not restart (reboot) correctly or might not display video (no
video). If this happens, you will need a BIOS recovery diskette.
To create this diskette, download the BIOS recovery disk image from
http://www.ibm.com/pc/support and follow the directions in the image's included
readme file.
Using the BIOS recovery diskette, complete the following steps to recover the BIOS
code:
18
xSeries 226 Type 8488 and 8648: Hardware Maintenance Manual and Troubleshooting Guide
1. Read Appendix B, "Safety information," on page 143.
2. Turn off the server and all attached devices.
3. Disconnect the power cord; then, disconnect all external cables.
4. Remove the side cover (see "Removing the side cover" on page 28).
5. Remove the frame-support bracket (see "Removing and installing the support
bracket" on page 32).
6. Locate the boot block recovery jumper (JCON1) on the system board,
removing any adapters that impede access to the jumper. The following
illustration shows the location of the jumper on the system board.
Default
(pins 1 and 2)
1 2 3
BIOS recovery
(no jumper)
BIOS
recovery
(JCON1)
Default
(pins 1 and 2)
1 2 3
Clear CMOS data
(pins 2 and 3)
CMOS
data
(JCMOS1)