HP TouchSmart IQ520 - Desktop PC Manual page 62

7 Attach the power adapter to the back of the computer and then reconnect the power cord to the power
source.
WARNING: To reduce the risk of electrical shock, fire, or equipment damage, do not plug
telecommunications or telephone cables into the network interface card (NIC) (labeled as LAN).
8 Reconnect all other cables, and then replace the connector cover by aligning the three tabs on the side
edge of the cover with the holes on the computer, and then rotating inward to snap it into place.
9 Reconnect external devices.
10 Turn on the HP TouchSmart PC and all devices connected to it.
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Upgrading and Servicing Guide