Lenovo 7844B4U, User Manual

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5. To lower the drive bay assembly, press the bend hook
1
inward and pivot the
drive bay assembly downward.
Installing or replacing a PCI card
Attention
Do not open your computer or attempt any repair before reading and understanding the
“Important safety information” in the
ThinkCentre Safety and Warranty Guide that came with
your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide , go to:
http://www.lenovo.com/support
This section provides instructions on how to install or replace a PCI card.
Your computer has one standard PCI card slot, two PCI Express x1 card slots, and
one PCI Express x16 graphics card slot. See “Locating parts on the system board”
on page 11.
To install or replace a PCI card, do the following:
1.
Remove all media from the drives and turn off all attached 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 14.
3. Do one of the following:
v If you are replacing a PCI card, remove the screw that secure the old PCI
card and release the old PCI card from the PCI card slot. Then, carefully
remove the old PCI card from the chassis, as shown in Figure 11 on page 19.
Notes:
a. If there are any cables between the PCI card and the system board, note
the cable routing and then disconnect the cables.
Figure 10. Lowering the drive bay assembly
18
User Guide