HP t620 Troubleshooting Manual page 37

c. Pull the riser card out of the socket and carefully move it to one side.
Disconnecting the cables from the PCIe riser card is not necessary.
8.
Locate the battery on the system board.
9.
Carefully pry the battery up from the system board.
10.
Unplug the battery cable connector from the system board.
11. Connect the cable connector from the new battery to the system board.
12. Carefully press the new battery down to adhere the battery securely to the system board.
13. If the computer is an HP t620 PLUS Thin Client, perform the following steps.
a.
If the cables from the PCIe riser card were disconnected in step 7 c, reconnect them.
Removing and replacing the battery
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