Dell PowerEdge C5220 - Manual (Page 109)

Troubleshooting 109
BIOS System Update
This section describes the use of the AMI BIOS Flash Utility for updating
system BIOS.
Firmware Update Utility-AMI Flash Utility
AMI Flash Utility can update BIOS through local interface.
1 Boot into DOS/Microsoft Windows.
2 Execute C5220BIOS(version).exe.
NOTE: DOS does not support long file names. To use a file under DOS mode,
rename it to fit the required file structure before executing the file.
BIOS Recovery Mode
The BIOS has an embedded recovery technique in the 'boot block'. In the
event that the BIOS becomes corrupt the boot block can be used to restore
the BIOS to a working state. The routine is called when the 'system block' of
the BIOS is empty or corrupt. The restore routine when called accesses the
USB drive looking for a file named 5220BIOS.ROM.
This is the reason the USB drive light comes on and the drive appears to be in
use. If the file (5220BIOS.ROM) is found it is loaded into the 'system block'
of the BIOS to replace the corrupted information.
To restore your BIOS, copy the most recent version of your system board’s
BIOS file to a USB key and rename it 5220BIOS.ROM.
BIOS Recovery Flow
1 Rename the ROM file to 5220BIOS.ROM and copy to the USB device.
2 Short the recovery jumper (JP11).
3 Power on the system.