Recovering The Bios - Silicon Graphics 1450 User Manual

Recovering the BIOS

007-4274-001
7. Turn off the computer and reboot.
8. If you need to change the BIOS settings, press <F2> while the splash screen is
displayed to enter the Setup program.
It is unlikely that anything will interrupt the BIOS upgrade; however, if an interruption
occurs, the BIOS could be damaged. The following steps explain how to recover the BIOS
if an upgrade fails. The following procedure use recovery mode for the Setup program.
Note: Because of the small amount of code available in the nonerasable boot block area,
there is no video support. You will not see anything on the screen during the procedure.
Monitor the procedure by listening to the speaker and looking at the floppy drive LED.
1. Turn off all peripheral devices connected to the computer. Turn off the computer.
2. Remove the computer cover.
3. Locate jumper block J9F2.
4. Move the Recovery Boot jumper from pins 9-10 to pins 10-11. See the 1450 Server
Maintenance Guide.
5. Insert the bootable BIOS upgrade floppy disk into floppy drive A.
6. Replace the cover, turn on the computer, and allow it to boot. The recovery process
will take a few minutes.
7. Listen to the speaker.
8. Two beeps indicate successful BIOS recovery.
9. A series of continuous beeps indicates failed BIOS recovery.
10. If recovery fails, return to step 1 and repeat the recovery process.
11. If recovery is successful, turn off the computer. Remove the computer cover and
continue with the following steps.
12. Move the Recovery Boot jumper back to pins 9-10.
13. Replace the computer cover.
14. Follow the instructions for "Upgrading the BIOS" on page 75.
Upgrading the BIOS
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