Updating (Flashing) Bios From A Disc; Updating (Flashing) Bios From Your Operating System; Recovering From A Post/Bios Update Failure - Lenovo 7269D7U - Topseller M58e Sff E7500 2.93G 3Gb 320Gb Dvdrw W7p/Xpp Hardware Maintenance Manual

Updating (flashing) BIOS from a disc

This section describes how to update (flash) the BIOS using a disc. System BIOS program updates are
available at: http://www.lenovo.com/support
1. To update (flash) the BIOS from a disc, make sure the computer is turned on. Insert the disc into
the optical drive.
2. Turn the computer off and back on again. The update begins.
3. When you are prompted to select a language, press the number on your keyboard that corresponds
to the language and then press Enter.
4. When prompted to change the serial number, press Y.
5. Type in the seven character serial number of your computer and then press Enter.
6. When prompted to change the machine type/model, press Y.
7. Type in the seven character machine type/model of your computer and then press Enter.
8. Follow the instructions on the screen to complete the update.

Updating (flashing) BIOS from your operating system

Note: Due to the constant improvements made to the Web site, Web page content (including the links
referenced in the following procedure) is subject to change.
1. Go to: http://www.lenovo.com/support
2. Locate the downloadable files for your machine type as follows:
a. In the Enter a product field, type your machine type and click Go ® Continue ® Downloads
and drivers.
b. Under the BIOS category, click Flash BIOS update.
c. Click the TXT file that contains the installation instructions for the flash BIOS update (flash from the
operating system version).
3. Print these instructions. This is very important because they are not on the screen after the download
begins.
4. Click Back to return to the list of files. Carefully follow the printed instructions to download, extract,
and install the update.

Recovering from a POST/BIOS update failure

If power to your computer is interrupted while POST/BIOS is being updated (flash update), your computer
might not restart correctly. If this happens, perform the following procedure commonly called Boot-block
Recovery.
1. Turn off the computer and any attached devices, such as printers, monitors, and external drives.
2. Unplug all power cords from electrical outlets, and remove the computer cover.
3. Access the system board.
4. Locate the Clear CMOS/Recovery jumper on the system board. Refer to "System board connectors"
on page 98.
5. Remove any cables that impede access to the Clear CMOS/Recovery jumper.
6. Move the jumper from the standard position (pin 1 and pin 2) to pin 2 and pin 3.
Note: If the system board has only two pins for clearing the CMOS, add a jumper to the two pins.
7. Reinstall any PCI adapter card if removed.
8. Reconnect any cables that were disconnected and reinstall the computer cover.
9. Reconnect the power cords for the computer and monitor to electrical outlets.
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ThinkCentre Hardware Maintenance Manual