Compaq hp pavilion ze4100 notebook pc User Manual

2-30 Removal and Replacement Service Manual
 
3. 
Turn the lock screw one-half turn counterclockwise to release the CPU module (you should hear a
light snap). Carefully lift the CPU module off of its socket on the motherboard.
 
Figure 2-17. Removing the CPU Module
Reassembly Notes
  Caution
 
Each time you install a new CPU module, you must also replace the heat sink’s thermal pad to
maintain optimum heat transfer. Use a sharp knife or scraper to carefully remove the old thermal
pad from the heat sink,...

Service Manual Removal and Replacement 2-31
Removing the Motherboard
(Authorized Service Providers Only)
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 W eb site (see...

2-32 Removal and Replacement Service Manual
  Caution: Wireless Models
 
Be careful when removing and attaching antenna cables. Damage to cables or connectors can
degrade performance.
 
3. Wireless models only: 
Remove the mini-PCI door and unplug the two antenna cables from the
mini-PCI card. Do not remove the mini-PCI card at this time.
 
4. 
Remove the four screws that attach the motherboard to the bottom case.
 
5. 
From the back of the notebook, remove the six standoffs (two each from the external...

Service Manual Removal and Replacement 2-33
Reassembly Notes
  Important
 
After replacing the display assembly or motherboard, you must use the Service Utilities floppy disk
to reprogram the EEPROM on the motherboard for the new display.
1.  Download the notebook Series service package from the Partnership W eb site (see page vi),
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...

2-34 Removal and Replacement Service Manual
 
1. 
Remove the following components from the old motherboard and install onto the new
motherboard:
 • 
CPU module
 • 
Wireless LAN mini-PCI card (if present)
 • 
SDRAM modules
 
2. 
Follow the reassembly notes in the section entitled “Removing the Motherboard” on page 2-33.
Note: After Replacing the Motherboard
If present, insert the modem port cover into the modem port opening. Afterwards, you must use the
Service Utility floppy disk to store the system data...

Service Manual Removal and Replacement 2-35
Replacing Components on a Bottom Case
Reassembly Procedure
 
1. 
Transfer the plastic wireless panel, and if present, the docking port cover from the old bottom case
to the new bottom case.
 
2. 
Install a new Microsoft Product ID label.
 
3. 
Transfer the old serial number label and install a new overlay, or create a new serial number label
using the steps below.
 
4. 
Follow the “Reassembly Notes” on page 2-33.
Installing a New Serial Number Label
Download...

2-36 Removal and Replacement Service Manual
Replacing the Left and Right Antennas
If you need to remove or replace an antenna, see the figure below.
 Caution
  Handle the connector ends of the antennas carefully. Failure to do so could degrade notebook
performance.
  Handle the antenna routing metal tabs in the bottom case carefully. These tabs can be easily
broken.
 
1. 
Carefully remove both antennas from the old bottom case.
 
2. 
Route both antenna cables through the new bottom case as shown below....

Service Manual Removal and Replacement 2-37
Repairing the BIOS IC
(Authorized Service Providers Only)
The notebook’s BIOS IC cannot be replaced separately. If it is defective, you must replace the
motherboard. In some cases, however, you might be able to reprogram a malfunctioning BIOS IC using
either e-DiagTools for Windows, a BIOS floppy disk, or a Crisis Recovery floppy disk.
If the notebook will boot sufficiently, use e-DiagTools for Windows or a BIOS floppy disk to
reprogram the BIOS IC. If you...

2-38 Removal and Replacement Service Manual
Using a BIOS Floppy Disk
If you do not have a BIOS floppy disk, download the package from the Partnership Web site (see page
vi) under Product Support Information in the Service and Support Library. Follow the instructions for
creating the BIOS floppy disk.
  Caution
 
Make sure to use the correct BIOS floppy disk for the notebook model you are repairing. The
program does not verify the notebook model, so you could accidentally install the wrong BIOS.
 
1....

Service Manual Removal and Replacement 2-39
Removing Other Components
(Authorized Service Providers Only)
Required Equipment
 • 
#0 and #1 Phillips screwdrivers.
 • 
Small flat-blade screwdriver.
Removal Procedure
 
1. 
Unplug the AC adapter, if present, and remove the battery.
 
2. 
Remove the assemblies and follow the additional steps listed in the table below.
  Table 2-5. Removing Components
ComponentRemoval ProcedureAdditional Steps
Battery, CMOSKeyboard cover
(page 2-10).
Speaker (page 2-12)....