Removing the Motherboard
(Authorized Service Providers Only)
Note
This section applies only to HP Pavilion 4300, 4200, and 4100, HP nx9005 and nx9000,
Compaq Evo Notebook N1050 and N1010, and Compaq Presario 2100 and 1100 models.
Required Equipment
• #1 Phillips screwdriver.
Removal Procedure
Note: Before Replacing the Motherboard
If possible, record the computer’s electronic serial number before you replace the motherboard.
You will then store the electronic serial number in the EEPROM on the new motherboard using the
Service Utility floppy disk.
1. Download the notebook service package from the Partnership Web site (see page vii), and
create a Service Utilities floppy disk as described in the package’s Readme file.
2. Plug in an AC adapter.
3. Insert the Service Utilities floppy disk in the floppy drive.
4. Turn on the notebook. When the HP logo appears (on either the built-in display or the external
monitor), press Esc to display the boot menu, then choose Removable Device and boot from
the floppy disk.
5. Select the Serial Number option from the boot menu.
6. When prompted, type A for the automatic update option. This stores the current system data
from the old motherboard on the floppy disk.
1.
2.
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Unplug the AC adapter, if present, and remove the battery.
Remove these additional assemblies:
• Hard disk drive (page 2-9).
• Keyboard cover (page 2-12).
• Keyboard (page 2-16).
• CD/DVD drive (page 2 ).
• Display assembly (page 2-23).
• Top case (page 2-26).
• Floppy drive (page 2-32).
• Heat sink (page 2-40).
2-50 Removal and Replacement Service Manual
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