Dell PowerEdge T640 EMC PowerEdge T640 Installation and Service Manual - Page 158

Removing the main power interposer board

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Figure 117. Installing the GPU power interposer board Next steps 1. Install the system board. 2. Install the PSUs. 3. Follow the procedure listed in After working inside your system on page 66. Removing the main power interposer board Prerequisites CAUTION: To prevent damage to the main power interposer board (PIB), you must remove the power supply units (PSUs) from the system before removing the PIBs. 1. Follow the safety guidelines listed in Safety instructions on page 65. 2. Follow the procedure listed in Before working inside your system on page 66. 3. Remove the PSUs. 4. Remove the system board. 5. If installed, remove the GPU PIB. Steps 1. Disconnect all the power cables from the main PIB. 2. Using the Phillips #2 screwdriver, remove the screws that secure the main PIB to the system. 3. Lift the main PIB out of the system. Figure 118. Removing the main PIB 158 Installing and removing system components

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Figure 117. Installing the GPU power interposer board
Next steps
1.
Install the system board
.
2.
Install the PSUs
.
3.
Follow the procedure listed in
After working inside your system
on page 66.
Removing the main power interposer board
Prerequisites
CAUTION:
To prevent damage to the main power interposer board (PIB), you must remove the power supply units
(PSUs) from the system before removing the PIBs.
1.
Follow the safety guidelines listed in
Safety instructions
on page 65.
2.
Follow the procedure listed in
Before working inside your system
on page 66.
3.
Remove the PSUs
.
4.
Remove the system board
.
5.
If installed,
remove the GPU PIB
.
Steps
1.
Disconnect all the power cables from the main PIB.
2.
Using the Phillips #2 screwdriver, remove the screws that secure the main PIB to the system.
3.
Lift the main PIB out of the system.
Figure 118. Removing the main PIB
158
Installing and removing system components