Product guide

51
Power On Self Test (POST)
(continued)
After POST completes, the system beeps once.
What appears on the screen after this depends on whether you have an operating
system loaded and if so, which one.
If the system halts before POST completes running, it emits a beep code indicating
a fatal system error that requires immediate attention. If POST can display a
message on the video display screen, it causes the speaker to beep twice as the
message appears.
Note the screen display and write down the beep code you hear; this information is
useful for your service representative. For a listing of beep codes and error
messages that POST can generate, see the “Solving Problems” chapter in this
manual.
Using BIOS Setup
This section describes the BIOS Setup options. Use Setup to change the server
configuration defaults. You can run Setup with or without an operating system being
present. 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 you
boot the server. POST uses these values to configure the hardware; if the values
and the actual hardware do not agree, POST generates an error message. You
must then run Setup to specify the correct configuration.
Run Setup: You may run Setup to modify such server board feature as:
q Select diskette drive
q Select parallel port
q Select serial port
q Set time/date (to be stored in RTC)
q Configure IDE hard drive
q Specify boot device sequence
q Enable SCSI BIOS
q Specify processor speed
Run SSU, not Setup: You must run the SSU instead of Setup to do the following:
q Add or remove any ISA board that is not Plug and Play-compatible
q Enter or change information about a board
q Alter server resources (such as interrupts, memory addresses, I/O
assignments) to user selected choices instead of choices selected by the
BIOS resource manager
Chapter Four Configuration Software and Utilities