compaq evo n115 User Manual

							Remova l and Replacement Procedures
Maintenance and Ser vice Guide 5–33
✎The heat spreader thermal pad should be replaced every time the 
processor is replaced. Refer to Figure 5-29 for the location of the 
thermal pad. The Thermal Pad Kit spare part number 
is 265995-001.
Figure 5-29. Replacing the Thermal Pad
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Remo va l and Replacement Procedures
5.12 Processor
ÄCAUTION:  Before removing the processor, make special note of 
the orientation of the printing on the processor. The processor must 
be installed in the same orientation in which it was removed.
1. Prepare the computer for disassembly (Section 5.3) and  remove the following components:
a. Optical drive device (Section 5.7)
b. LED cover (Section 5.8)
c. Keyboard (Section 5.9)
d. Display (Section 5.10)
e. Heat spreader (Section 5.11)
Processors
Spare Part Number Information
Processors
AMD Mobile Athlon 4 1.1 GHz with PowerNow! technology (includes 256 KB L2 cache)
AMD Mobile Athlon 4 1.0 GHz with PowerNow! technology  (includes 256 KB L2 cache)
AMD Mobile Athlon 4 900 MHz with PowerNow! technology 
(includes 256 KB L2 cache)
AMD Mobile Duron 950 MHz with PowerNow! technology  (includes 64 KB L2 cache)
AMD Mobile Duron 900 MHz with PowerNow! technology 
(includes 64 KB L2 cache)
AMD Mobile Duron 850 MHz with PowerNow! technology  (includes 64 KB L2 cache)
Processor Stopper Kit  (not illustrated) 254105-001
239184-001
239182-001
260738-001
249664-001
239181-001
265994-001
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							Remova l and Replacement Procedures
Maintenance and Ser vice Guide 5–35
2. If a stopper 1 is installed in the left slot (marked “Lock”), 
remove it (Figure 5-30).
3. Insert a flat-bladed tool into the right slot (marked  “Open”)
2.
4. Swing the tool to the left 
3 to unseat the processor from the 
socket on the system board.
5. Lift the processor straight up and remove it 
4.
Figure 5-30. Remo ving the Processor
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Remo va l and Replacement Procedures
When installing the processor, insert a flat-bladed tool in the left 
“Lock” slot 
1 (Figure 5-31). Swing the tool to the right 2 to seat 
the processor in the socket on the system board.
If the processor socket has the letters “CEN” 
3 printed on the 
front, install a stopper 
4 into the “Lock” slot.
Figure 5-31. Installing the Pr ocessor
5.13 Disk Cell RTC Battery
1. Prepare the computer for disassembly (Section 5.3) and 
remove the following components:
a. Optical drive (Section 5.7)
b. LED cover (Section 5.8)
Disk Cell RTC Battery
Spare Part Number Information
Disk cell RTC battery 279769-001
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							Remova l and Replacement Procedures
Maintenance and Ser vice Guide 5–37
c. Keyboard (Section 5.9)
d. Display (Section 5.10)
e. Heat spreader (Section 5.11)
2. Use a flat-bladed tool to remove the RTC battery from the  socket in the system board (Figure 5-32).
Figure 5-32. Remo ving the Disk Cell R TC Batter y
✎When replacing an RTC battery, insert the battery with the “+” 
sign facing up.
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							5–38Maintenance and Service Guide
Remo va l and Replacement Procedures
5.14 Top Cover
1. Prepare the computer for disassembly (Section 5.3) and 
remove the following components:
a. Optical drive (Section 5.7)
b. LED cover (Section 5.8)
c. Keyboard (Section 5.9)
d. Display (Section 5.10)
e. Heat spreader (Section 5.11)
2. Turn the computer bottom side up with the front facing  forward.
Top Cover
Spare Part Number Information
Top cover 254116-001
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							Remova l and Replacement Procedures
Maintenance and Ser vice Guide 5–39
3. Remove the six pewter TM2.0 × 7.5 screws 1 that secure the 
top cover to the base enclosure (Figure 5-33).
4. Remove the three silver TM2.0 × 5.0 screws 
2 in the battery 
bay that secure the top cover to the base enclosure.
Figure 5-33. Remo ving the Top Co ver Scre ws
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							5–40Maintenance and Service Guide
Remo va l and Replacement Procedures
5. Turn the computer top side up with the front facing forward.
6. Disconnect the TouchPad cable 
1 from the low insertion 
force (LIF) connector on the system board (Figure 5-34).
7. Remove the two silver TM2.0 × 5.0 screws 
2 and the pewter 
TM2.0 × 7.5 screw 
3 that secure the top cover to the base 
enclosure.
Figure 5-34. Disconnecting the T ouc hP ad Cab le and 
Remo ving the T op Co ver Scre ws
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							Remova l and Replacement Procedures
Maintenance and Ser vice Guide 5–41
8. Swing the back edge of the top cover up and forward until the 
front edge of the top cover disengages from the base 
enclosure (Figure 5-35).
Figure 5-35. Remo ving the Top Co ver
9. Remove the top cover.
Reverse the above procedure to install the top cover.
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5.15 Diskette Drive
1. Prepare the computer for disassembly (Section 5.3) and 
remove the following components:
a. Optical drive (Section 5.7)
b. LED cover (Section 5.8)
c. Keyboard (Section 5.9)
d. Display (Section 5.10)
e. Heat spreader (Section 5.11)
f. Top cover (Section 5.14)
Diskette Drive
Spare Part Number Information
Diskette drive 254119-001
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