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Fan sink
Description Spare part number
Fan sink 745661-001
The fan sink is secured atop the processor with four captive Torx screws. The fan sink includes a heat
sink and a fan.
1. Prepare the computer for disassembly (
Preparation for disassembly on page 92).
2. Remove the access panel (
Access panel on page 93).
3. Remove the fan duct (
Fan duct on page 121).
4. Loosen the four captive Torx T15 screws that secure the fan sink to the system board tray.
CAUTION: Remove fan sink retaining screws in diagonally opposite pairs (as in an X) to even
the downward forces on the processor. This is especially important as the pins on the socket are
very fragile and any damage to them may require replacing the system board.
130 Chapter 6 Removal and replacement procedures: Small Form Factor
- Maintenance and Service Guide 1
- About This Book 3
- Table of contents 5
- 1 Product features 11
- Small Form Factor 12
- Front panel components 13
- Small form factor 14
- Rear panel components 15
- Microtower (model 490) 16
- Serial number location 18
- Software 19
- Windows 8 20
- Downloading Windows 8 updates 21
- 3 Illustrated parts catalog 22
- Computer major components 23
- Misc parts 27
- Misc boards 29
- 4 Routine care, SATA drive 43
- Generating static 44
- Grounding the work area 45
- Operating guidelines 46
- Routine care 47
- Service considerations 48
- Cables and connectors 49
- Hard Drives 49
- SATA hard drives 50
- SATA hard drive cables 51
- SMART ATA drives 51
- Cable management 51
- 5 Removal and replacement 52
- Expansion cards 61
- No. Mounting Screw Device 71
- 3.5-inch Hard Drive 71
- Removing a 5.25-inch drive 73
- Installing a 5.25-inch drive 73
- Installing a 3.5-inch drive 81
- Power switch/LED assembly 88
- Speaker 745053-001 94
- Fan 745052-001 96
- Fan, BFR/PVC free 748825-001 96
- System board 100
- 6 Removal and replacement 102
- Access panel 103
- Front bezel 104
- Front bezel security 105
- Bezel blanks 106
- DDR3-SDRAM DIMMs 107
- Installing DIMMs 108
- Populating DIMM sockets 108
- Expansion card 110
- System board connections 114
- Drive positions 117
- Removing a 3.5-inch device 118
- Installing a 3.5-inch device 119
- Removing a slim optical drive 122
- Power supply 129
- Fan duct 131
- Front I/O assembly 132
- Power switch assembly 135
- Description Spare part number 138
- Speaker 727149-001 138
- Fan sink 140
- Processor 142
- Computer Setup—File 149
- Computer Setup—Storage 150
- Computer Setup—Security 152
- Computer Setup—Power 157
- Computer Setup—Advanced 158
- 8 Troubleshooting without 161
- Helpful hints 162
- Solving general problems 164
- Solving power problems 168
- Solving hard drive problems 169
- Solving display problems 174
- Solving audio problems 179
- Solving printer problems 181
- Solving Network Problems 187
- Solving memory problems 190
- Solving processor problems 192
- Solving software problems 198
- 9 POST error messages 200
- Resetting the password jumper 214
- 11 HP PC Hardware Diagnostics 217
- 12 System backup and recovery 219
- Creating recovery media 222
- System Restore 225
- System Recovery 226
- A Battery replacement 230
- B Power cord set requirements 233
- Country-specific requirements 234
- C Specifications 235
- SFF specifications 236
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