IBM x Series 200 manual Clearing CMOS, Replacing the battery

Models: x Series 200

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Clearing CMOS

3.Move the JROM1 jumper to the alternate position (pins 1 and 2) to enable the BIOS recovery mode.

4.Reinstall the side cover, see “Installing the cover” on page 59.

5.Reconnect all external cables and power cords and turn on the peripheral devices.

6.Insert the BIOS flash diskette in the diskette drive.

7.Restart the server. The BIOS begins the power-on self-test.

8.Select 1 - Update POST/BIOS from the menu that contains various flash (update) options.

9.When prompted as to whether you want to save the current code to a diskette, select N.

10.When prompted to choose a language, select a language (from 0 to 7) and press Enter to accept your choice.

11.Do not restart your server at this time.

12.Remove the BIOS flash diskette from the diskette drive.

13.Turn off the server and peripheral devices and disconnect all external cables and power cords; then, remove the side cover, see “Removing the side cover” on page 40.

14.Move the JROM1 jumper to the normal position (pins 2 and 3) to return to normal startup mode.

15.Reinstall the side cover, see “Installing the cover” on page 59.

16.Reconnect all external cables and power cords and turn on the peripheral devices.

17.Restart the server, which should start up normally.

Clearing CMOS

If you need to erase configuration information, you must move the CMOS jumper. See the illustration in “Recovering BIOS” on page 14 for the location of the CMOS jumper.

The default position is a jumper installed on pins 1 and 2. Before you change the position of this jumper, you must turn off the server and peripheral devices, and disconnect all external cables and power cords. Remove the cover and then move the jumper to pins 2 and 3.

After moving the jumper, wait at least 5 minutes for the CMOS information to clear.

Changing the position of this jumper erases all configuration and setup information, including the power-on and administrator passwords. Therefore, you must reconfigure the server after clearing CMOS memory (see “Chapter . Configuring the server,” on page 29). If possible, record your server configuration information before moving the CMOS jumper.

After you clear the CMOS information, move the jumper back to its normal position (pins 1 and 2). Reconnect the external cables and power cords; then, turn on the peripheral devices and the server.

Replacing the battery

When replacing the battery, you must replace it with a lithium battery of the same type from the same manufacturer. To avoid possible danger, read and follow the safety statement below.

Diagnostics 15

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IBM x Series 200 manual Clearing CMOS, Replacing the battery