14 About Your System
LCD Panel Features (Optional)
The system's LCD panel provides system information and status and error 
messages to signify when the system is operating correctly or when the system 
needs attention. See "LCD Status Messages (Optional)" on page 25 for 
information on specific status codes.
The LCD backlight lights blue during normal operating conditions and lights 
amber to indicate an error condition. When the system is in standby mode, 
the LCD backlight switches off after five minutes of inactivity, and can be 
6 system identification 
button
Turns the system ID modes on and off.
The identification buttons on the front 
and back panels can be used to locate a 
particular system within a rack. When 
one of these buttons is pushed, the LCD 
panel on the front and the system status 
indicator on the chassis back panel light 
blue until one of the buttons is pushed 
again.
7 System status 
indicator
Lights blue during normal system 
operation. Lights amber when the 
system needs attention due to a 
problem.
8 USB connectors (2) Connect USB devices to the system. The 
ports are USB 2.0-compliant. 
9 Hard drives (4) Up to four 2.5-inch in 3.5-inch HDD 
hot-swappable carrier or up to four 3.5-
inch cabled/hot-swappable hard drives.
10 System identification 
panel
A slide-out panel for system information 
including the Express Service tag, 
embedded NIC MAC address, and 
iDRAC6 Enterprise card MAC address.
11 Optical drive 
(optional)
One optional slim-line SATA 
DVD-ROM drive or DVD+/-RW drive.
NOTE: DVD devices are data only.
Item Indicator, Button, or 
Connector
Icon Description
R310HOM.book  Page 14  Thursday, March 4, 2010  1:03 AM