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Installing System Components 65
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 expansion-card cage
containing the left riser accommodates up to two full-length PCIe expansion
cards, while the central riser accommodates one half-length PCIe expansion
card.
The system provides space for an optical drive. The optical drive connects to
the controllers on the system board through the sideplane board. For more
information, see "Optical Drive and Cable" on page 96.
The hard-drive bays provide space for up to four 3.5-inch SATA hard drives.
The hard drives connect to a SAS controller card through the SAS backplane
board. For more information, see "Hard Drives" on page 68 and "SAS
Controller Daughter Card" on page 85.
During an installation or troubleshooting procedure, you may be required to
change a jumper setting. For more information, see "System Board Jumpers"
on page 157.
Front Bezel
A lock on the bezel restricts access to the power button, optical drive, and
hard drive(s). A control panel LCD located on the front panel and accessible
through the front bezel displays the system’s status.
Removing the Front Bezel
1
Using the system key, unlock the bezel.
2
Press the tab at the left end of the bezel.
1 SAS controller daughter card 2 sideplane
3 power supply bay 4 power supplies (2)
5 left riser 6 central riser
7 memory modules (8) 8 heatsinks and microprocessors (2)
9 hot-pluggable fans (4) 10 SAS backplane
11 slimline optical drive 12 SATA hard drives (up to 4, depending on
configuration)
13 control panel
Book.book Page 65 Monday, September 14, 2009 12:57 PM