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Maintenance and Service Guide
Compaq Presario 5300 Series Computers

MSG index Product Description Troubleshooting Illustrated Parts Catalog
Home Removal & Replacement Jumper & Switch Information Specifications

Clearing CMOS
Power-On Self Test (POST)
Configuration
Diagnostic error codes
Troubleshooting without diagnostics
TROUBLESHOOTING

Clearing CMOS

For models 5346, 5352, 5354, 5356, 5358, 5373, 5376, 5378, 5396, 5398

If the power-on password is unknown, clearing CMOS will disable the password and allow the computer to be operated. 

The board shown is an example of one used; your board may differ slightly--see Note below.

ba.jpg (78113 bytes)

CMOS jumper location

1 Complete the preparation for disassembly.
2 Remove the chassis.
NOTE: If your board is different from the one shown, click links to see alternative boards for other models.
3 To disable the password, move the jumper bub1.gif (838 bytes) (J3) from pins 1-2 to pins 2-3 for 10 seconds, then return to pins 1-2.
4

Perform the desired troubleshooting.

 

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