Service Manual
Procedure
1  Locate the password jumper (pin number three and four) on the system 
board.
For information on the location of the CMOS jumper, see “System- board 
components”.
2  Remove the jumper plug.
1 jumper plug 2 password jumper (Pin 
number three and four)
3  Replace the processor fan.
4  Replace the top cover.
5  Replace the base cover.
6  Turn on your computer and wait till the operating system is completely 
loaded.
7  Shut down your computer.
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