Compaq.com - Compaq Presario Maintenance and Service Guide - 2250, 2410 ES, 2510, and 4240 ES Series
United States December 10, 2002
Maintenance & Service Guide
Presario 2250 Series
2510, 2410 ES & 4240 ES Personal Computers
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Power-On Self Test (POST)
POST is a series of diagnostic tests that run automatically when the system is
turned on. If POST finds an error in the system, an error condition is indicated
by an audible and/or visual message.
Click
for a listing of possible error messages and solutions.
NOTE:
An external speaker must be installed into the speaker
output connector in order to hear beeps during POST.
After the computer is turned on, POST checks the following assemblies to
ensure that the computer system is functioning properly:
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Keyboard
■
System board
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Memory modules
■
Video memory
■
Diskette drive
■
Hard drive
■
CD (or DVD) drive
■
Power supply
POST also detects the type of mass storage devices installed in the computer.
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http://h18000.www1.hp.com/athome/support/msgs/2000/post.html [12/10/2002 8:57:44 AM]
