Dell OptiPlex 7071 Tower Tower Service Manual - Page 68

Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup

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Steps 1. Slide the front I/O-ports on the system board into the front I/O-slots on the chassis and align the screw holes on the system board with the screw holes on the chassis. 2. Replace the screw (M2x4) that secures the system board to the chassis. 3. Replace the eight screws (#6-32) that secure the system board to the chassis. 4. Route and connect all the cables that you disconnected from the system board . 5. Align the front I/O-bracket with the slots on the chassis. 6. Replace the screw (#6-32) that secures the front I/O-bracket to the chassis. Next steps 1. Install the processor. 2. Install the VR heat sink. 3. Install the processor fan and heat-sink assembly. 4. Install the coin-cell battery. 5. Install the graphics card. 6. Install the solid-state drive/Intel Optane memory module. 7. Install the wireless card. 8. Install the memory modules. 9. Install the front cover. 10. Install the left-side cover. 11. Follow the procedure in After working inside your computer. NOTE: Your computer's Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board. NOTE: Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup program. You must make the appropriate changes again after you replace the system board. 68 Disassembly and reassembly

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Steps
1.
Slide the front I/O-ports on the system board into the front I/O-slots on the chassis and align the screw holes on the system board
with the screw holes on the chassis.
2.
Replace the screw (M2x4) that secures the system board to the chassis.
3.
Replace the eight screws (#6-32) that secure the system board to the chassis.
4.
Route and connect all the cables that you disconnected from the system board .
5.
Align the front I/O-bracket with the slots on the chassis.
6.
Replace the screw (#6-32) that secures the front I/O-bracket to the chassis.
Next steps
1.
Install the
processor
.
2.
Install the
VR heat sink
.
3.
Install the
processor fan and heat-sink assembly
.
4.
Install the
coin-cell battery
.
5.
Install the
graphics card
.
6.
Install the
solid-state drive/Intel Optane memory module
.
7.
Install the
wireless card
.
8.
Install the
memory modules
.
9.
Install the
front cover
.
10.
Install the
left-side cover
.
11.
Follow the procedure in
After working inside your computer
.
NOTE:
Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup
program after you replace the system board.
NOTE:
Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup
program. You must make the appropriate changes again after you replace the system board.
68
Disassembly and reassembly