52 | 4 Configuration Software and Utilities |
BIOS Setup
You can run BIOS Setup with or without an operating system being present. BIOS Setup stores most of the configuration values in battery- backed CMOS; the rest of the values are stored in flash memory. The values take effect when the system is booted. POST uses these values to configure the hardware. If the values and the actual hardware do not agree, POST generates an error message.
Record BIOS Setup Settings
Record your BIOS Setup settings. If default values ever need restoring (after a CMOS clear, for example), you must run BIOS Setup again. Your record will make this much easier.
If BIOS Setup Is Inaccessible
If you have a misconfigured diskette drive, and you cannot use BIOS Setup to correct the problem, you might need to clear CMOS memory. To clear CMOS, either of two methods can be used.
1Press the reset button and hold it down for four seconds or more, and then, while holding the reset button down, press the power button. Release both buttons at the same time.
2Move the Clear CMOS jumper found on the configuration jumper block on the baseboard.
Temporarily Changing the Boot Device Priority
During POST, you can change the boot device priority for the current boot process. The changes are not saved for the next boot process.
1Boot the server.
2At any time during POST, press <Esc>. When POST completes, a popup Boot menu displays.
3Use the arrow keys to highlight the device you want the server system to boot from first. For example, if you want the server system to boot from the
Note: One of the selections on the popup Boot menu is “Enter Setup.” Selecting this option brings you into the BIOS Setup.
