Acer Aspire S5-391 Acer S5-391 Notebook Service Guide - Page 49

DOS Flash Utility NOTE: Plug the AC power adaptor to a power source before performing the DOS Flash Utility. Perform the following to use the DOS Flash Utility: 1. Reboot the system and press F2 during boot to enter the BIOS Setup Utility. 2. Select Boot menu to modify the boot priority order. 3. Move the USB HDD to position 1 (refer to Boot on page 2-10). Information Main Security InsydeH20 Setup Utility Boot Exit Rev. 3.7 Boot priority order: 1. HDD0 : Intel Aspire S5-391 2. HDD1 : 3. ATAPI CDROM : 4. USB FDD : 5. Network Boot : 6. USB HDD : 7. USB CDROM : Item Specific Help Use or to select a device, then press to move it up the list, or to move it down the list. Press to escape the menu F1 Help Esc Exit Select Item Select Menu F5/F6 Change Values Enter Select Sub-Menu F9 Setup Defaults F10 Save and Exit Figure 2-12. Changing the BIOS Boot Priority Order 4. Reboot the computer in DOS mode. 5. At the command prompt, execute the "BIOS.BAT" batch file to update BIOS and EC. Figure 2-13. Execute DIR System Utilities 2-13