POST
When you turn on the computer, the Power On Self-Test (POST) performs a series
of tests to check the operation of system components and some of the installed
options.
If POST finishes without detecting any problems, the first window of your
operating system or application program appears.
Notes:
1. If you have a user password set, you must type the password and press Enter,
when prompted, before the operating system will load.
2. A single problem might cause several error messages. When this occurs, work
to correct the cause of the first error message. After you correct the cause of the
first error message, the other error messages usually will resolve the next time
you run the test.
POST beep code descriptions
The possible types of beep codes are as follows:
Repeating long beeps
Indicate a memory error. Ensure that all RIMMs and C-RIMMs are
correctly installed.
One long beep and two short beeps
Indicate a video error. The BIOS cannot initialize the video screen to
display any additional information. Ensure that the video adapter is
correctly installed.
Small computer system interface messages (some models)
The following table lists actions to take if you receive any error message.
Note: If your system does not have a SCSI hard disk drive, ignore any message
that indicates that the BIOS is not installed.
Chapter 6. Solving problems 51
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