Dell OptiPlex 5055 Tower OptiPlex 5055 Tower Owners Manual - Page 27

Installing PCIe expansion card, Power supply unit, Removing power supply unit – PSU

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NOTE: To remove the PCIe brackets (2 and 4), push the bracket upwards from the inside of your computer to release it and then lift the bracket away from your computer. 7 Repeat the steps to remove any additional PCIe expansion cards. Installing PCIe expansion card 1 Insert the PCIe expansion card to the connector on the system board. 2 Secure the PCIe expansion card by pushing the card retention latch until it clicks into place. 3 Repeat the steps to install any additional PCIe expansion cards. 4 Close the release latch. 5 Close the front panel door. 6 Install the: a Front bezel b Back cover 7 Follow the procedure in After working inside your computer. Power supply unit Removing power supply unit - PSU 1 Follow the procedure in Before working inside your computer. 2 Remove the: a Cover b Front bezel 3 Open the Front panel door. 4 To release the PSU: a Disconnect the PSU cables from the connectors on the system board [1, 2]. b Pull the clips to release the cables from the cable holders [3]. c Unroute the PSU cables from the cable holders [4]. d Remove the screws( 6+/-1) that secure the PSU to the computer [5]. Disassembly and reassembly 27

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NOTE:
To remove the PCIe brackets (2 and 4), push the bracket upwards from the inside of your computer to release it and
then lift the bracket away from your computer.
7
Repeat the steps to remove any additional PCIe expansion cards.
Installing PCIe expansion card
1
Insert the PCIe expansion card to the connector on the system board.
2
Secure the PCIe expansion card by pushing the card retention latch until it clicks into place.
3
Repeat the steps to install any additional PCIe expansion cards.
4
Close the release latch.
5
Close the front panel door.
6
Install the:
a
Front bezel
b
Back cover
7
Follow the procedure in
After working inside your computer
.
Power supply unit
Removing power supply unit – PSU
1
Follow the procedure in
Before working inside your computer
.
2
Remove the:
a
Cover
b
Front bezel
3
Open the
Front panel door
.
4
To release the PSU:
a
Disconnect the PSU cables from the connectors on the system board [1, 2].
b
Pull the clips to release the cables from the cable holders [3].
c
Unroute the PSU cables from the cable holders [4].
d
Remove the screws( 6+/-1) that secure the PSU to the computer [5].
Disassembly and reassembly
27