Acer Veriton Z2610G, Service Manual

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Veriton Z2610G/Z2611G/Z2620G/Z2621G AIO Computer Service Guide 79
BIOS Recovery
When you boot up the computer and you hear one long beep, followed by a shorter one, the system BIOS is
damaged. This maybe cause by an interruption during a BIOS flash procedure (e.g. a power outage) or a
corrupted BIOS code, which will cause the system to go into an unbootable state.You need to access and
execute the boot block program to reboot the computer and recover the regular BIOS code.
Note the following when restoring the BIOS settings:
• Make sure the computer is connected to a UPS unit during the BIOS recovery process.
• The BIOS recovery media should be prepared in a computer running the Windows 7 OS. A USB flash
drive can be used.
Creating the BIOS Crisis Recovery Disk
1. Set up a computer running the Windows 7 operating system and connect the BIOS recovery media
(bootable USB flash drive).
2. Copy the target BIOS ROM file to the BIOS recovery media and rename it as “amiboot.rom”.
3. Eject the BIOS recovery media from the computer.
Performing a BIOS Recovery
1. Shut down the BIOS failed-computer.
2. Put the BIOS.ROM (like P01-A0) to a bootable USB memory key (Disk on Key, DOK).
3. Rename BIOS rom file (it may exist at \ROM\xxx.ROM) to AMIBOOT.ROM
4. Install the DOK to the system
5. Press the power button to turn on the computer.
The system will now execute the BIOS recovery process. You will hear a long beep followed by a short beep.
6. When you see the logo and message on screen, press Delete to enter BIOS setup menu.
7. Select Proceed with flash update .
Wait for the program to finish with the recovery.
NOTE This procedure is only applicable when the boot block section is still valid.