Replacing A Pci Express Card - Lenovo ThinkCentre M700 Maintenance Manual

1. Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to the
computer.
2. Remove the computer cover. See "Removing the computer cover" on page 86.
3. Locate the cover presence switch. See "Computer components" on page 32.
4. Disconnect the cover presence switch cable from the system board.
5. Remove the screw that secures the cover presence switch, and then remove the cover presence
switch from the chassis.
Figure 43. Removing the cover presence switch
6. Align the hole in the new cover presence switch with the corresponding screw hole in the chassis. Then,
install the screw to secure the cover presence switch.
7. Connect the cover presence switch cable to the system board. See "Parts on the system board"
on page 35.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 122.

Replacing a PCI Express card

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
To replace a PCI Express card, do the following:
1. Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to the
computer.
2. Remove the computer cover. See "Removing the computer cover" on page 86.
3. Locate the PCI Express card you want to replace. The PCI Express cards are installed in the PCI
Express card slots on the system board. See "Parts on the system board" on page 35.
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ThinkCentre M700 Hardware Maintenance Manual