Acer TravelMate P653-V Acer TravelMate P653-M and P653-V Notebook Service Guid - Page 222

Performing a BIOS Recovery 0 Boot Block 0 An interruption during a BIOS flash procedure (e.g. a power outage) can corrupt the BIOS code, which will cause the system to go into an unbootable state. The BIOS boot block refers to a special BIOS program that can be used to boot up a system with minimum BIOS initialization.You need to access and execute the boot block to reboot the computer and recover the regular BIOS code. Creating the Crisis Disk 0 NOTE: NOTE: The BIOS crisis recovery disk should be prepared in a computer running the Windows XP, Vista, or 7 OS. 1. Prepare a removable USB flash drive. Note that all data in the USB flash drive will be cleared during the creation of the crisis disk. 2. Set up a computer running the Windows XP, Vista, or 7 operating system and plug in the USB flash drive into an available USB port. 3. Open the Notepad program and create a new file. 4. Type startup.nsh. For example, the USB key prompt is fs0. The PFlash.efi and BIOS.cap files are in the fs0: root directory. Figure 5-5. Startup.nsh File 5. Save this file as startup.nsh in the USB flash drive's root directory. 6. Decompress the Crisis Package Source in the USB flash drive's root directory. 5-8 Jumper and Connector Locations