Dell Latitude E4300 (Late 2008) - Manual (Page 57)

The left I/O card provides DC-in, video, and USB connectors.
1. Remove the DC power-cable assembly (see Removing the DC-In Power Assembly ).
2. Remove the M2.5 x 5-mm screw that secures the left I/O card to the computer base.
3. Remove the left I/O card from the computer.
Replacing the Left I/O Card
1. Reseat the I/O card, aligning the connectors with their respective ports on the left side of the computer base.
2. Replace the M2.5 x 5-mm screw to secure the left I/O card to the computer base.
3. Replace the DC power-cable assembly (see Replacing the DC-in Power Assembly ).
Replacing the System Board Assembly
1. Insert the right side of the system board into the computer base at an angle until the connectors on the system board are aligned with the holes on the
computer base, and then carefully lower the system board into place.
2. Replace the four M2.5 x 5 screws and three M2 x 4-mm screws on the system board.
3. Reconnect the coin-cell battery connector from the bottom side of the computer.
4. Replace the palm rest (see Replacing the Palm Rest )
5. Replace the optical drive (see Replacing the Optical Drive ).
CAUTION: Before working inside the computer, read the safety information that shipped with the computer. For additional safety best practices
information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.
NOTICE: If you are replacing the system board assembly, retain the DC-in power assembly. The DC-in power assembly is not included with the
replacement system board assembly.
NOTE: This procedure assumes that you have completed the system board removal procedure first.
1 left I/O card 2 M2.5 x 5-mm screw
3 system board
NOTE: This procedure assumes that you have completed the left I/O card removal procedure first.
CAUTION: Before working inside the computer, read the safety information that shipped with the computer. For additional safety best practices
information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.
NOTE: This procedure assumes that you have completed the removal procedure first.
NOTE: If you are installing a new system board, the system board kit may or may not include a separate BIOS chip. If the kit includes a separate BIOS
chip, you must install it on the system board before you boot the system.