Asus TS300-E6/PS4 - Manual (Page 76)

5-4 Chapter 5: BIOS setup
The utility verifies the file, then starts updating the BIOS file.
DO NOT shut down or reset the system while updating the BIOS to prevent
system boot failure!
5. The utility returns to the DOS prompt after the BIOS update process is
completed. Reboot the system from the hard disk drive.
The BIOS update is finished! Please restart your system.
C:\>
ASUSTek BIOS Update for DOS V1.06 (09/08/04)
Current ROM
Update ROM
Note
Writing BIOS:
FLASH TYPE: MXIC 25L1605A
PATH:
BOARD: P7F-E
VER: 0205
DATE: 07/23/2009
BOARD: P7F-E
VER: 0206
DATE: 08/10/2009
WARNING! Do not turn off power during flash BIOS