Installing System Components 63
4
Remove the expansion card:
a
Open the expansion-card latch. See Figure 3-12.
b
Grasp the expansion card by its edges, and carefully remove it from the expansion-card connector.
5
If you are removing the card permanently, install a metal filler bracket over th e empt y expansion slot
opening and close the expansion-card latch.
NOTE: You must install a filler bracket over an empty expansion slot to maintain Federal Communicati ons
Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid
in proper cooling and airflow inside the system.
6
Close the system. See "Opening and Closing the System" on pag e 46.

Configuring the Boot Device

If you plan to boot the system from a hard drive, the drive must be attached to the primary (or boot)
controller. The device that the system boots from is determined by the boot order specified in the Syst em
Setup program.
The System Setup program provides options that the system uses to scan for installed boot devices. See
"Using the System Setup Program" on page 31 for information about the System Setup program.

Configuring the Boot Drive

The drive or device from whic h the sys tem boots is dete rmin ed by the boot ord er spe cified in the Sys tem Setup
program.
See "Using the System Setup Prog ram " on page 31 for information about the System Setup
program
.

System Memory

You can upgrade your system memory to a maximum of 32 GB by installing 533-MHz or 667-MHz fully
buffer ed (FB) DDR II memo ry modules (DIMMs ) in sets of 256-MB, 512 -MB, 1-GB, 2-GB, or 4-GB modu les.
The eight memory soc kets are lo cated on the sys tem board under the mem ory cooling shr oud.You can pur chase
memory upgrade kits from Dell.
NOTICE: If you remove your original memory modules from the system during a memory upgrade, keep them
separate from any new memory modules that you may have, even if you purchased th e new memory modules from
Dell. Use only 533-MHz or 667-MHz DDR II fully buffered DIMMS (FBDs).
The memory module sockets are divided into two equal branches (0 and 1). Each branch consists of two
channels:
Channel 0 and channel 1 are in bran ch 0.
Channel 2 and channel 3 are in bran ch 1.