Dell PRECISION 530 - Manual (Page 113)

Removing and Installing Parts 113
CAUTION: Some network adapters automatically start the
computer when they are connected to a network. To guard against
electrical shock, be sure to unplug your computer from its
electrical outlet before installing any expansion cards and verify
that the standby power light on the system board has turned off.
To locate this light, see " System Board Components " or the
interior service label.
8 Insert the expansion card into the expansion-card connector.
If the expansion card is full-length, insert the end of the card into the
expansion-card guide bracket as you lower the card toward its
connector on the system board. Insert the card firmly into the
expansion-card connector on the system board (see the following
figure).