DELL 1950 User Manual
Installing System Components
45
The system board holds the system's control circuitry and other electronic components. Several hardware
options, such as the microprocessors and memory, are installed directly on the system board. The left and
center risers each have one slot and can accommodate up to two half-length PCI-X cards or two half-length
PCIe expansion cards. For more information, see "Expansion Cards" on page 61.
options, such as the microprocessors and memory, are installed directly on the system board. The left and
center risers each have one slot and can accommodate up to two half-length PCI-X cards or two half-length
PCIe expansion cards. For more information, see "Expansion Cards" on page 61.
The system provides space for one optional slimline optical drive. The optical drive tray connects to the
controller on the system board through the sideplane board. For more information, see "Installing the Optical
Drive Tray" on page 74.
controller on the system board through the sideplane board. For more information, see "Installing the Optical
Drive Tray" on page 74.
The hard-drive bays provide space for up to two 3.5-inch or four 2.5-inch SAS/SATA hard drives. The hard
drives connect to a SAS controller daughter card or a SAS RAID controller daughter card. For more
information, see "Installing a Hot-Plug Hard Drive" on page 76.
drives connect to a SAS controller daughter card or a SAS RAID controller daughter card. For more
information, see "Installing a Hot-Plug Hard Drive" on page 76.
During an installation or troubleshooting procedure, you may be required to change a jumper setting. For
more information, see "Jumpers and Connectors" on page 115.
more information, see "Jumpers and Connectors" on page 115.
NOTE:
There are no hot-pluggable components inside this system except for externally accessible components,
such as the power supplies and the hard drives.
Removing and Replacing the Front Bezel
1
The system is enclosed by an optional bezel. To upgrade or troubleshoot the system, remove the bezel and
cover to access the internal system components. Unless you are installing a hot-plug hard drive, turn off
the system and attached peripherals, and disconnect the system from the electrical outlet and peripherals.
cover to access the internal system components. Unless you are installing a hot-plug hard drive, turn off
the system and attached peripherals, and disconnect the system from the electrical outlet and peripherals.
NOTE:
You do not need to remove the front bezel to remove the system cover.
2
Using the system key, unlock the bezel.
3
Press the tab at the left end of the bezel.
4
Rotate the left end of the bezel away from the system to release the right end of the bezel.
5
Pull the bezel away from the system. See Figure 3-2.
1
control panel
2
SAS controller daughter card
or SAS RAID controller
daughter card (optional)
or SAS RAID controller
daughter card (optional)
3
sideplane
4
cooling fan modules (4)
5
power supply bays (2)
6
left riser (slot 2)
7
center riser (slot 1)
8
battery
9
system board cooling shroud
1
0
0
memory modules (8)
11
heatsink/microprocessor (2)
12
backplane
1
3
3
two 3.5-inch or four 2.5-inch
hard drive bays
hard drive bays
14
optical slimline drive
(optional)
(optional)