IBM MICRO TOWER 2169 - Manual (Page 44)

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Flash (BIOS) Update Procedure
NOTE: This system does not deny acces tot he BIOS Setup
Utility.
The flash update procedure does not change the
model number and serial number information in BIOS.
1. Prepare a bootable DOS diskette with AWD753.EXE and
VXXYYZZ.BIN files
NOTE: The AWD753.EXE is flash utility programs. The
VXXYYZZ.BIN is a BIOS source code binary file.
2. Insert the diskette and boot from drive A.
WARNING: Do not boot with any memory related driver
such as HIMEM.SYS, EMS.SYS ….
3. At the DOS prompt, type A:> AWD753 VXXYYZZ.BIN and
then press Enter.
4. The screen shows: “Do You Want To Save Bios (Y/N)”.
Type Y if you want to save old bios data, and N if you do
not.
5. When the screen shows: “Are You Sure To Program (y/n)”,
type Y to flash and update the system bios.
6. The program updates the BIOS automatically.
7. Wait for the update to complete.
WARNING: Do not turn off the system power while the
BIOS is programming, or the flash ROM will
be destroyed.
8. Press F1 to Reset (or press F10 to exit) the system after the
BIOS is completely updated.