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IBM-AUSTRIA - PC-HW-Support 30 Aug 1999 |
Power-On Self Test (POST)
Power-On Self Test (POST)
Each time you power-on the system, it performs a series of tests that check the operation of the
system and some options. This series of tests is called the power-on self-test , or POST.
POST (defined in BIOS and BIOS-setup) does the following:
- Checks BIOS integrity
- Checks basic system-board operations
- Checks the memory operation
- Starts the video operation
- ...... and some more, not listed here
- Verifies that the diskette drive is working
- Verifies that the hard disk drive is working
If the POST finishes without detecting any problems, a single beep sounds and the
first screen of the operating system or application program appears.
If the POST detects a problem, a BEEP-code signal or an error message appears on the screen. A single problem can
cause several error messages to appear. When you correct the cause of the first error message,
the other error messages probably will not appear on the screen the next time you turn on the system.
More INFORMATION / HELP is available at the IBM-HelpCenter
Please see the LEGAL - Trademark notice.
Feel free - send a for any BUG on this page found - Thank you.