Configuration
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The main BIOS image is the default flashing area if no options are present.
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[/ REBOOT], [/ X], and [/ S] automatically enables the [/ P] function automatically.
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If [/ B] is present alone, only the boot block area needs to be updated.
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If [/ N] is present alone, only the NVRAM area needs to be updated.
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If [/ E] is present alone, only the embedded controller block needs to be updated.
Flash Command
Description
afudos XXXX.ROM / P
Program main BIOS image
afudos XXXX.ROM / P / B
Program main BIOS and BB (Boot Block)
afudos XXXX.ROM / P / B / N
Program main BIOS, BB and NVRAM
afudos XXXX.ROM / P / B / R
Program BB and main BIOS without SMBIOS
Clearing the BIOS password
If the user and/ or administrator password is lost or forgotten, clear both passwords by moving the
password clear jumper into the clear position.
The BIOS determines if the password clear jumper is in the clear position during BIOS POST and clears
any passwords if necessary. The password clear jumper must be restored to its original position for the
new password to remain set.
Clearing the CMOS
The CMOS clear jumper uses RTCRST# to:
Clear CMOS values
Set the RTC power well configuration bits to default.
To support legacy BIOS, CMOS can be cleared through the restore function to return the settings (stored in
NVRAM) to the default settings.
There are two methods to clear the CMOS:
Clear the CMOS jumper.
Remove the CMOS battery when the system is inAC OFFstatus.
Important: After clearing the CMOS, the BIOS setup default is restored, but the password that was set by
the user is still reserved.
Recovering the BIOS
If the BIOS image is corrupt, a system BIOS update fails, or the system fails to complete POSTth, e BIOS
must enter recovery mode. In recovery mode, an entire BIOS image can be refreshed to BIOS flash part.
To recover the BIOS:
1.
Turn off the system power.
2.
Open the chassis.
3.
Move the BIOS recovery jumper from the normal positions 1-2 to the recovery positions 2-3.
4.
Close the chassis.
5.
Copy the latest BIOS image file (DC1F1XXX.ROM) to a USB drive, XXX is the revision number. A
bootable USB is not required.
