Dell PowerEdge R900 - Manual (Page 15)

About Your System 15
Hard Drive Indicator Codes
The hard drive carriers have two indicators—the drive-activity indicator and
the drive-status indicator.
4 LCD panel. Provides system ID, status information,
and system error messages.
The LCD lights during normal system
operation. Both the systems
management software and the
identification buttons located on the
front and back of the system can cause
the LCD to flash blue to identify a
particular system.
The LCD lights amber when the system
needs attention, and the LCD panel
displays an error code followed by
descriptive text.
If the system is connected to AC power
and an error has been detected, the LCD
lights amber regardless of whether the
system has been powered on.
5 USB connectors (2). Connects USB 2.0-compliant devices to
the system.
6 Video connector. Connects a monitor to the system.
7 Hard drives. Eight 2.5-inch hot-plug or five 3.5-inch
hot-plug.
8 Optical drive. One slimline optical drive.