compaq presario 900 series User Manual

							Removal and Replacement Procedures
Maintenance and Service Guide5–3
5.2 Disassembly Sequence Chart
Use the following chart to determine the section number to be 
referenced when removing computer components.
Disassembly Sequence Chart
Section Description # of Screws Removed
5.3 Preparing the computer for 
disassembly
Battery pack 0
Optical drive 2
Hard drive 1 to remove the hard 
drive
4 to remove the hard 
drive from hard drive 
bracket
5.4 Computer feet 0
5.5 Memory expansion board 1
5.6 Mini PCI communications board 1
5.7 Disk cell RTC battery 0
5.8 Connector cover 2
5.9 LED cover 2
5.10 Keyboard 0
5.11 Heat spreader 7
5.12 Processor 0
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							5–4Maintenance and Service Guide
Removal and Replacement Procedures
5.3 Preparing the Computer for 
Disassembly
Perform the following steps before disassembling the computer:
1. Turn off the computer.
2. Disconnect the AC adapter and all external devices.
Section Description # of Screws Removed
5.13 Display 6
5.14 Palm rest 6
5.15 Diskette drive 3
5.16 TouchPad components 4
5.17 Display release assembly 2
5.18 Charger board 3
5.19 Speaker assembly 0
5.20 Top cover 5
5.21 Fan 0
5.22 System board 7
5.23 Modem cable 1
Disassembly Sequence Chart (Continued)
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							Removal and Replacement Procedures
Maintenance and Service Guide5–5
3. Remove the battery pack by following these steps:
a. Turn the computer bottom side up with the left side 
facing forward.
b. Slide and hold the battery release latch 
1 toward the back 
of the computer (Figure 5-2).
c. Use the notch in the battery bay to slide the battery pack 
out of the battery bay 
2.
d. Remove the battery pack.
Figure 5-2. Releasing the Battery Pack
Reverse the preceding procedures to install the battery pack.
Battery Packs
Spare Part Number Information
8 cell, 58 W hour, 3.6 Ah, Li ion 281766-001
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							5–6Maintenance and Service Guide
Removal and Replacement Procedures
4. To remove the battery bezel, slide the bezel straight down 
(Figure 5-3).
Figure 5-3. Removing the Battery Bezel
✎Battery bezels are available with carbon finish for Evo Notebook 
N1005 models and silver finish for Presario 900 models, and are 
included in the Miscellaneous Plastics/Hardware Kit, spare part 
number 285541-001.
Reverse the preceding procedures to install the battery bezel.
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							Removal and Replacement Procedures
Maintenance and Service Guide5–7
5. Remove the optical drive by following these steps:
a. Turn the computer bottom side up with the left side 
facing forward.
b. Remove the two TM2.5 × 5.0 screws that secure the 
optical drive to the base enclosure (Figure 5-4).
Figure 5-4. Removing the Optical Drive Screws
Optical Drives
Spare Part Number Information
24X Max CD-ROM drive
16X Max CD-RW drive
8X Max DVD-ROM drive
8X Max DVD-ROM/CD-RW combination drive285526-001
285528-001
285527-001
285529-001
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							5–8Maintenance and Service Guide
Removal and Replacement Procedures
c. Turn the computer top side up with the right side facing 
forward.
d. Insert a paper clip or similar thin metal rod into the 
manual release hole on the front bezel of the optical 
drive
1 (Figure 5-5). Press firmly.
e. Grasp the drive bezel and slide the drive out of the optical 
drive bay 
2.
Figure 5-5. Removing an Optical Drive
Reverse the preceding procedures to install a optical drive.
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							Removal and Replacement Procedures
Maintenance and Service Guide5–9
6. Remove the hard drive by following these steps:
a. Turn the computer bottom side up with the right side 
facing forward.
b. Remove the TM2.5 ×8.0 hard drive retention screw 
1 
(Figure 5-6).
c. Slide the hard drive forward 
2 to unseat the hard drive 
connector from the system board.
Figure 5-6. Removing the Hard Drive Screw
Hard Drives
Spare Part Number Information
40 MB
30 MB
20 MB273491-001
192406-001
288291-001
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							5–10Maintenance and Service Guide
Removal and Replacement Procedures
d. Lift the front edge of the hard drive 1 until it rests at an 
angle (Figure 5-7).
e. Remove the hard drive from the hard drive bay 
2.
Figure 5-7. Removing the Hard Drive
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							Removal and Replacement Procedures
Maintenance and Service Guide5–11
7. Remove the four PM3.0 × 3.0 screws 1 that secure the hard 
drive to the hard drive bracket (Figure 5-8).
8. Slide the hard drive out of the hard drive bracket 
2.
Figure 5-8. Removing the Hard Drive Bracket
✎Hard drive brackets are available with carbon finish for 
Evo Notebook N1005 models and silver finish for Presario 900 
models, and are included in the Miscellaneous Plastics/Hardware 
Kit, spare part number 285541-001.
Reverse the preceding procedures to install the hard drive and 
hard drive bracket.
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							5–12Maintenance and Service Guide
Removal and Replacement Procedures
5.4 Computer Feet
The computer feet are adhesive-backed rubber pads. The 
computer feet are included in the Miscellaneous 
Plastics/Hardware Kit, spare part number 285541-001. The 
computer feet attach to the base enclosure as illustrated in 
Figure 5-9.
Figure 5-9. Replacing the Computer Feet
5.5 Memory Expansion Board
1. Prepare the computer for disassembly (Section 5.3).
2. Turn the computer bottom side up with the front facing 
forward.
Memory Expansion Boards
Spare Part Number Information
512 MB
256 MB
128 MB285524-001
285523-001
285222-001
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