HP Pro 3385 Micro Maintenance & Service Guide Pro 3330/3380 Microtower Pro - Page 148

Preparation for Disassembly, on Access Panel, Memory, Expansion Card, Fan Sink, Processor

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System Board NOTE: All system board spare part kits include replacement thermal material. Description System board for use in models without Windows 8 System board for use in models with NetClone System board for use in models with Windows 8 with no Digital Product Key (DPK) System board for use in models with Windows 8 Standard System board for use in models with Windows 8 Professional Spare part number 663099-001 711493-001 702644-001 702644-501 702644-601 The system board is secured to the computer with six screws. 1. Prepare the computer for disassembly (Preparation for Disassembly on page 101). 2. Remove the access panel (Access Panel on page 102). 3. When replacing the system board, make sure the following components are removed from the defective system board and installed on the replacement system board: ● Memory modules (seeMemory on page 105) ● Expansion cards (Expansion Card on page 110) ● Heat sink (Fan Sink on page 131) ● Processor (Processor on page 133) 4. Remove the fan from the chassis (Fan Assembly on page 129). 5. Rotate the drive cage to its upright position. 6. Rotate the power supply to its full upright position. 7. Disconnect all data and power cables from the system board. 8. Disconnect the balance of the cables from the system board. 9. Remove the six screws that secure the system board to the chassis. 138 Chapter 8 Removal and Replacement Procedures - Small Form Factor (SFF) Chassis

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System Board
NOTE:
All system board spare part kits include replacement thermal material.
Description
Spare part number
System board for use in models without Windows 8
663099-001
System board for use in models with NetClone
711493-001
System board for use in models with Windows 8 with no Digital Product Key (DPK)
702644-001
System board for use in models with Windows 8 Standard
702644-501
System board for use in models with Windows 8 Professional
702644-601
The system board is secured to the computer with six screws.
1.
Prepare the computer for disassembly (
Preparation for Disassembly
on page
101
).
2.
Remove the access panel (
Access Panel
on page
102
).
3.
When replacing the system board, make sure the following components are removed from the
defective system board and installed on the replacement system board:
●
Memory modules (see
Memory
on page
105
)
●
Expansion cards (
Expansion Card
on page
110
)
●
Heat sink (
Fan Sink
on page
131
)
●
Processor (
Processor
on page
133
)
4.
Remove the fan from the chassis (
Fan Assembly
on page
129
).
5.
Rotate the drive cage to its upright position.
6.
Rotate the power supply to its full upright position.
7.
Disconnect all data and power cables from the system board.
8.
Disconnect the balance of the cables from the system board.
9.
Remove the six screws that secure the system board to the chassis.
138
Chapter 8
Removal and Replacement Procedures – Small Form Factor (SFF) Chassis