IBM HS40 manual Recovering the BIOS code

Recovering the BIOS code

If the BIOS code has become damaged, such as from a power failure during a flash update, the blade server might appear to be nonfunctional (no video, no beeps). You can recover the BIOS code using the BIOS code page jumper (J1E2) and a BIOS flash diskette.

Note: To obtain a BIOS flash diskette, download a BIOS flash diskette image from the World Wide Web. Go to http://www.ibm.com/pc/support/, click IBM Server Support, and make the selections for your server.

The flash memory of the blade server consists of a primary page and a backup page. The J1E2 jumper controls which page is used to start the blade server. If the BIOS code in the primary page is damaged, you can use the backup page to start the blade server; then, start the BIOS flash diskette to restore the BIOS code to the primary page.

To recover the BIOS code, complete the following steps:

1.Turn off the blade server, and remove the blade server from the BladeCenter unit (see “Removing the blade server from the BladeCenter unit” on page 39).

2.Remove the cover (see “Opening the blade server cover” on page 40).

3.Locate the BIOS code page jumper (J1E2) on the I/O board.

Configuration switch block (S6H1)

3

2

1

BIOS code page jumper (J1E2)

Light path

diagnostics button (S8A1)

4.Move J1E2 to pins 2 and 3 to enable BIOS recovery mode.

5.Replace the cover, and reinstall the blade server in the BladeCenter unit, making sure the media tray is selected by the relevant blade server.

6.Insert the BIOS flash diskette into the diskette drive.

7.Restart the blade server. The server begins the power-on self-test (POST).

8.Select 1 - Update POST/BIOS from the menu that contains various flash (update) options.

30BladeCenter HS40 Type 8839: Hardware Maintenance Manual and Troubleshooting Guide