Bios Recovery - Intel SR6850HW4 - Server Platform - 0 MB RAM Product Manual

Server Platform Utilities

BIOS Recovery

In the case of a corrupt image or an unsuccessful update of the system BIOS, the main board can
boot in recovery mode. Recovery mode requires at least 64 MB of RAM and recovery media.
This is the mode of last resort, used only when the main system BIOS will not come up. During
recovery mode, the recovery code will load working BIOS code from the media and use it to boot
to DOS-bootable media. The minimal number of peripherals is initialized. At least one input and
one output device is initialized.
NOTES
For information on creating a DOS bootable USB flash memory device,
see "Creating DOS-bootable USB Flash Memory
To create a DOS-bootable CD ROM see the instructions that came with
your CD ROM burning software.
1. Read the release notes that came with the recovery BIOS.
2. Copy the BIOS recovery files to the root directory of your DOS bootable media.
3. Observe the safety precautions, warnings, and cautions described in "Safety Information".
4. Turn off all peripheral devices connected to the system.
5. Power down the system and unplug both AC power cords.
6. Remove the top cover. For instructions, see
7. Move the BIOS Recovery jumper at location J4A3 on the main board to the Enabled position,
covering pins 2 and 3. See Figure 17 to locate the jumper block.
8. Insert the DOS-bootable recovery media.
9. Power on the system.
One beep indicates recovery media valid and that the flash update has started. The system
BIOS will initialize the text console and display the progress. If the recovery media contains
more than one Update Package, you will be prompted to select the Update Package to be used.
10. The flash update will take approximately 2 minutes. Completion is indicated by four beeps and a
message on the screen. Wait for the beeps and the message.
11. Power off the system.
12. Move the BIOS Recovery jumper at location J4A3 on the main board to the Default position,
covering pins 1 and 2. See Figure 17 to locate the jumper block.
13. Plug in the power cords and power on the system.
14. Verify that the BIOS version number matches the version of the entire BIOS that was chosen.
The BIOS may automatically invoke recovery after system reset. Automatic recovery is similar to
forced recovery, with the exception that if recovery media is not found, the BIOS requests recovery
media by repeating a low-tone beep.
Automatic recovery may be due to any of the following conditions:
Flash integrity check failure: This includes corrupted header of the main BIOS or bad
checksum.
Incompatible versions of the recovery BIOS and the main BIOS.
70
"Removing the Top
Intel® Server Platforms SR6850HW4 and SR6850HW4/M Product Guide
Device", page 224.
Cover", page 139.