HP Pavilion Dv9400 Entertainment Notebook Pc Series Service Guide

Removal and Replacement Procedures
Maintenance and Service Guide 5–5
5.3 Preparing the Computer For 
Disassembly
Before you begin any removal or installation procedures: 
1. Shut down the computer. If you are unsure whether the 
computer is off or in hibernation, turn the computer on, 
and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power cord.
4. Remove the battery by following these steps:
a. Turn the computer upside...

5–6 Maintenance and Service Guide
Removal and Replacement Procedures
b. Slide and hold the battery release latch 1 to the left. 
(The front edge of the battery disengages from 
the computer.)
c. Lift the front edge of the battery 2 and swing it back.
d. Remove the battery.
Removing the Battery
Reverse the above procedure to install the battery. 

Removal and Replacement Procedures
Maintenance and Service Guide 5–7
5.4 Hard Drive
Hard Drive Spare Part Number Information
Hard drives (include bracket and connector)
For use only with computer models using Intel processors:
100-GB (7200-rpm)
100-GB (5400-rpm)434662-001
432997-001
For use with all computer models:
200-GB (4200-rpm)
160-GB (5400-rpm)
120-GB (5400-rpm)
100-GB (7200-rpm)
80-GB (5400-rpm)441424-001
438485-001
432998-001
441540-001
432996-001
For use only with computer models using AMD...

5–8 Maintenance and Service Guide
Removal and Replacement Procedures
1. Prepare the computer for disassembly (refer to Section 5.3).
2. Loosen the two captive Phillips PM2.0×5.0 screws 1 that 
secure each hard drive cover to the computer.
3. Lift the right side of the cover 2 and swing it to the left.
4. Remove the hard drive cover.
✎The hard drive covers are included in the Plastics Kit, 
spare part number 432981-001.
Removing the Hard Drive Covers 

Removal and Replacement Procedures
Maintenance and Service Guide 5–9
5. Use the mylar tab 1 to lift the hard drive 2 until it 
disconnects from the computer.
6. Remove the hard drive from the hard drive bay.
Removing the Hard Drive 

5–10 Maintenance and Service Guide
Removal and Replacement Procedures
7. Remove the four Phillips PM3.0×3.0 screws 1 that secure 
the hard drive bracket to the hard drive.
8. Lift the bracket 2 straight up to remove it from the 
hard drive.
✎The hard drive bracket and the screws used to secure the 
bracket to the hard drive are included in the Hard Drive 
Bracket Kit, spare part number 434106-001.
Removing the Hard Drive Bracket
Reverse the above procedure to install and reassemble the 
hard drives. 

Removal and Replacement Procedures
Maintenance and Service Guide 5–11
5.5 Computer Feet
The computer feet are adhesive-backed rubber pads. The feet are 
included in the Rubber Feet Kit, spare part number 432982-001. 
The feet attach to the base enclosure in the locations illustrated 
below.
Computer Feet Locations 

5–12 Maintenance and Service Guide
Removal and Replacement Procedures
5.6 Memory Module
1. Prepare the computer for disassembly (refer to Section 5.3).
Memory Module Spare Part Number Information
Memory modules, PC-5300, 667-MHz, 1-DIMM
For use only with models using Intel processors:
1024-MB
512-MB434742-001
434741-001
For use only with models using AMD processors:
2048-MB
1024-MB
512-MB448003-001
432970-001
432969-001 

Removal and Replacement Procedures
Maintenance and Service Guide 5–13
2. Loosen the two captive Phillips PM2.0×5.0 screws 1 that 
secure the memory module compartment cover to the 
computer.
3. Lift the front of the memory module compartment cover2, 
and then swing it back.
4. Remove the memory module compartment cover.
✎The memory module compartment cover is included in the 
Plastics Kit, spare part number 432981-001.
Removing the Memory Module Compartment Cover 

5–14 Maintenance and Service Guide
Removal and Replacement Procedures
5. Spread the retaining tabs 1 on each side of the memory 
module socket to release the memory module. (The edge 
of the module opposite the socket rises away from the 
computer.)
6. Slide the module 2 away from the socket at an angle.
✎Memory modules are designed with a notch 3 to prevent 
incorrect installation into the memory module socket.
Removing a Memory Module
Reverse the above procedure to install a memory module.