Lexmark C510 Guide D'installation page 32

Note:
The row of metal pins on the firmware card must be
fully inserted along its entire length.
Cards
Install memory, firmware, or option cards
26
2
Holding the flash memory or
firmware card by its sides, align
the plastic pins on the card with
the holes on the system board.
3
Push in until the flash memory or
firmware card is firmly in place.