Acer Aspire X3990 Acer Aspire X3990 Desktop Service Guide - Page 83
BIOS Recovery, The BIOS recovery function will be executed.
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BIOS Recovery AMIBIOS supports a "recovery flash" mode, which can be used to flash update a BIOS from the boot block. This is used to update a BIOS image without the need to boot to an operating system. The following is the process that user should follow to flash BIOS ROM. 1. Put the AMIBoot.ROM to a bootable USB flash drive(Disk on Key, DOK). 2. Install the DOK to the system. 3. Press power button to boot the system and then press Ctrl + Home. 4. The BIOS recovery function will be executed. 5. After BIOS is updated completely, the system will auto reboot. 6. Please enter the setup menu to load default after system reboot. Chapter 4 75