Product guide

Installing and Replacing Desktop Board Components
43
10. Reinstall the PCI Express graphics card (see Installing a PCI Express x16 Graphics
Card on page 43) if it was removed in Step 4.
11. Replace the computer’s cover and
reconnect the AC power cord.
Removing DIMMs
To remove a DIMM, follow these steps:
1. Observe the precautions in "Before You Begin" on page 29.
2. Turn off all peripheral devices connected to the
computer. Turn off the computer.
3. Remove the AC power cord from the computer.
4. Remove the computer’s cover.
5. If a full length PCI Express graphics card is installed in the PCI Express x16
connector, remove the card (see Removing a PCI Express x16 Grap
hics Card on
page 44) to gain access to the DIMM sockets.
6. Gently spread the retai
ning clips at each end of the DIMM socket. The DIMM pops
out of the socket.
7. Hold the DIMM by the edges, lift it away from the socket, and store it in an
anti-static package.
8. Reinstall the PCI Express graphics card (see Installing a PCI Express x16 Graphics
Card on
page 43) if it was removed in Step 5 and reinstall and reconnect any parts
you remove
d or disconnected to reach the DIMM sockets.
9. Replace the computer’s cover and reconnect the AC power cord.
Installing and Removing PCI Express x16
Graphics Cards
Installing a PCI Express x16 Graphics Card
CAUTION
Before installing the PCI Express x16 graphics card, make sure the tabs on the DIMM
sockets are in the upright position (closed); otherwise, they may be damaged by the
PCI Express card.
CAUTION
When installing a PCI Express card, ensure that the card is fully seated in the PCI
Express connector before you power on the system. If the card is not fully seated in
the connector, an electrical short may result across the connector pins. Depending on
the over-current protection of the power supply, certain Desktop Board components
and/or traces may be damaged.