HP Omnibook Xe3 Gf Service Manual

							HP Omnibook XE3 (Technology Code GF)  Removal and Replacement  2-27 
  
 
Figure 2-19. Removing the CPU Module (Pentium) 
CPU module 
CPU module 
lock mechanism  
						

							2-28  Removal and Replacement  HP Omnibook XE3 (Technology Code GF) 
4. Celeron SKUs: Turn the lock screw one-half turn counterclockwise to release the CPU module, 
and remove the CPU module from the motherboard. 
  
 
Figure 2-20. Removing the CPU Module (Celeron) 
Reassembly Notes 
• Carefully reinsert the module into its socket. Make sure the module is fully seated, and that none of 
its pins are bent or otherwise damaged. 
• Pentium SKUs: Carefully insert the tip of the flat-blade screwdriver in the CPU module lock 
mechanism, and turn the screwdriver a few degrees clockwise until the mechanism clicks into its 
LOCK position. (The CPU socket moves slightly to the right when this happens.) 
• Celeron SKUs: Carefully insert the CPU module into the motherboard. The module is keyed for 
installation, and can only be inserted one way. Turn the lock screw one-half turn clockwise to 
secure the CPU module. 
CPU module 
CPU module 
lock mechanism  
						

							HP Omnibook XE3 (Technology Code GF)  Removal and Replacement  2-29 
Removing the Floppy Disk Drive 
(HP Authorized Service Providers Only) 
Required Equipment 
• #0 Phillips screwdriver. 
Removal Procedure 
1.  Unplug the AC adapter, if present, and remove the battery. 
• Keyboard cover (page 2-8). 
• Keyboard (page 2-10). 
• Display assembly (page 2-16). 
• Top case (page 2-19). 
• Hinge saddle set (page 2-22). 
2.  Release the drive’s ribbon cable from its connector on the motherboard. 
3.  Remove the two retaining screws. 
4.  Lift the floppy drive out of the notebook.  
						

							2-30  Removal and Replacement  HP Omnibook XE3 (Technology Code GF) 
  
 
  Figure 2-21. Removing the Floppy Disk Drive 
Reassembly Notes 
• Make sure the headphone PCA cable is not trapped under the floppy disk drive. 
Screws, 
M2.5x4 mm (2)  
						

							HP Omnibook XE3 (Technology Code GF)  Removal and Replacement  2-31 
Removing the CD/DVD Drive 
(HP Authorized Service Providers Only) 
Required Equipment 
• #0 Phillips screwdriver. 
Removal Procedure 
1.  Unplug the AC adapter, if present, and remove the battery. 
• Keyboard cover (page 2-8). 
• Keyboard (page 2-10). 
• Hard disk drive (page 2-12). 
• Display assembly (page 2-16). 
• Top case (page 2-19). 
• Hinge saddle set (page 2-22). 
2.  Pull the drive to the right, off of its connector and out of the notebook. 
  
 
  Figure 2-22. Removing the CD/DVD Drive 
Reassembly Notes 
• Place the drive so that its connector aligns with that on the motherboard, then gently press it to the 
left and into place.  
						

							2-32  Removal and Replacement  HP Omnibook XE3 (Technology Code GF) 
Removing the Motherboard or Bottom Case 
(HP Authorized Service Providers Only) 
Required Equipment 
• #0 Phillips screwdriver. 
• 5 mm hexagonal socket screwdriver. 
When Installing a New Motherboard 
Before replacing the motherboard, you must (if possible) electronically store the motherboard’s serial 
number and service ID for transfer to the new motherboard. 
1.  Exit Windows and boot to a DOS prompt: 
• For Windows 98, press F8 during reboot and select Command Prompt Only. 
• For Windows 2000 or XP, boot from a DOS boot floppy disk. 
2.  Run ESN.EXE from one of these sources: 
• On a factory software installation, change to \hp\drivers\hputils and type esn at the prompt. 
– or – 
• Copy \hp\drivers\hputils\ESN.EXE from the Recovery CD, then run it on the notebook. 
3.  Save the serial number and service ID.  
						

							HP Omnibook XE3 (Technology Code GF)  Removal and Replacement  2-33 
Removal Procedure 
1.  Unplug the AC adapter, if present, and remove the battery.  
2.  Remove these additional assemblies: 
• Battery (page 2-4). 
• SDRAM modules (page 2-5). 
• Mini-PCI PCA (page 2-6). 
• Keyboard cover (page 2-8). 
• Keyboard (page 2-10). 
• Hard disk drive (page 2-12). 
• Display assembly (page 2-16). 
• Top case (page 2-19). 
• Hinge saddle set (page 2-22). 
• Heatsink assembly (page 2-24). 
• CPU module (page 2-26). 
• Floppy disk drive (page 2-29). 
• CD/DVD drive (page 2-31). 
3.  Remove all four standoff screws from the back of the notebook. 
4.  Remove both retaining screws from the motherboard. 
5.  Disconnect the cable (modem models only) or cables (modem/LAN models only) at the right rear 
corner of the motherboard. 
6.  Disconnect the cable from the headphone PCA. 
7.  Remove the CPU standoffs. 
8.  Remove the CD/DVD drive support from near the right rear corner of the motherboard. 
9.  Lift the front edge of the motherboard slightly, then lift the motherboard forward and out of the 
bottom case. 
10.  Remove the CPU support plate from the bottom case.  
						

							2-34  Removal and Replacement  HP Omnibook XE3 (Technology Code GF) 
 
 
  Figure 2-23. Removing the Motherboard 
Reassembly Procedure 
• When reinstalling the motherboard, see “Reinstalling the Motherboard” on page 2-35. 
• When reinstalling the bottom case, see “Replacing the Bottom Case” on page 2-36. 
Screw, 
M2.5x5 mm (1) 
Screw, 
M2.5x5 mm (1) 
Standoff screws, 5 mm (4) CPU standoff 
screws, 5 mm (2) 
Headphone 
PCA 
CPU support 
plate 
CD/DVD support  
						

							HP Omnibook XE3 (Technology Code GF)  Removal and Replacement  2-35 
Reinstalling the Motherboard 
Reassembly Procedure 
1.  Install the CPU support plate. 
2.  Insert the I/O connectors through their openings in the bottom case, then lower the motherboard 
into place. 
• Be careful not to trap the modem or modem/LAN cable(s) or headphone PCA cable under the 
motherboard (modem and modem/LAN models only). 
• Fit the modem cable through the notch on the edge of the motherboard, and make sure the 
LAN cable doesn’t block the nearby screw tab. 
• Make sure the alignment posts in the bottom case fit through the holes at the back left and 
front right corners of the motherboard. 
3.  Reconnect the cable (modem models only) or cables (modem/LAN models only) at the right rear 
corner of the motherboard. 
4.  Reconnect the headphone PCA cable. 
When Installing a New Motherboard 
After installing a new motherboard, you must electronically transfer to it the serial number and service 
ID from the previous motherboard, and set the video DIP switches for the notebook’s display type. 
1.  Exit Windows and boot to a DOS prompt: 
• For Windows 98 or ME, press F8 during reboot and select Command Prompt Only. 
• For Windows 2000 or XP, boot from a DOS boot floppy disk. 
2.  Run ESN.EXE from the same source you ran it from when saving the serial number and service ID 
from the previous motherboard: 
• On a factory software installation, change to the \hp\drivers\hputils directory and type esn at 
the prompt. 
– or – 
• Copy \hp\drivers\hputils\ESN.EXE from the Recovery CDs, then run it on the notebook. 
3.  Install the serial number and service ID. 
• If you are prompted for the serial number, type the serial number shown on the bottom of the 
case. 
• If a serial number has already been stored, you must call an HP support center to change it. 
4.  Set the DIP switches on the motherboard to match the settings for the notebook’s display type. See 
Table 2-8 on page 2-18.  
						

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Replacing the Bottom Case 
Installation Procedure 
1.  Install a new Microsoft Product ID label. 
2.  Transfer the old serial number label and install a new overlay, or create a new serial number label 
using the steps below. 
3.  If you need to install or replace the docking or PCMCIA doors, refer to the figures below. 
  
 
 Figure 2-24. Installing Docking Doors