Lenovo 4229 Computer Hardware User Manual


 
3. Remove the front bezel by releasing the two plastic tabs on the left side and pivoting the front bezel
outward.
Figure 7. Removing the front bezel
4. To reinstall the front bezel, align the three plastic tabs on the right side of the front bezel with the
corresponding holes in the chassis, and then pivot the front bezel inwards until the two plastic tabs
snaps into position on the left side.
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 104.
Installing or replacing a PCI card
Attention: Do not open your computer or attempt any repair before reading and understanding the “Important
Safety Information” on page 1.
This section provides instructions on how to install or replace a PCI card. Your computer has two standard
PCI card slots, two PCI Express x4 card slots, and two PCI Express x16 graphics card slots.
To install or replace a PCI card, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See “Removing the computer cover” on page 64.
3. Open the PCI card retainer by lifting the retainer and then pivoting it out.
66 ThinkStation Hardware Maintenance Manual