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| Sun Fire X4640 Server Service Manual Sun Fire X4640 Server Documentation Library

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## How to Configure the System BIOS

| Caution - System performance impact. The default system BIOS settings are the optimized settings for your server. Changes to the default settings might negatively impact the performance of your server and render your server inoperable.

1. Connect to the system console using one of the methods described in Connecting to the System Console in Sun ILOM 3.0 Supplement for the Sun Fire X4640 Server.

   Connecting to the system console allows you to see and respond to POST and boot messages.

2. Reboot the server.

   To reboot the server see Controlling Power and Performing Hardware Reset.

3. Watch the console for the prompt to press F2 to access the BIOS Setup utility.
4. When the prompt appears, press F2.

   The BIOS Setup utility main menu appears.

5. Use the left and right arrow keys to navigate the menu screens.

   For a description of the BIOS Setup utility menu screens, see BIOS Setup Utility Screens.

6. Use the down and up arrow keys to highlight the configurable settings within each screen.
7. To view the options for each configurable setting, press Enter.
8. To change a setting, scroll through options, highlight one, and press Enter to select it.
9. To save your changes, press F10 to save and exit the utility or press Esc to exit the utility without saving.

   When you exit the BIOS Setup utility, the server performs a hard reset and then boots to the OS.

See Also

- BIOS Setup Utility Screens

- BIOS and Service Processor Updates

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