Back Panel Features - Dell PowerEdge 1750 Installation And Troubleshooting Manual

Identification button
USB connector
Video connector
SCSI Hard-Drive Indicator Codes
If the optional ROMB card is activated, two indicators on each of the hard-drive carriers provide information about the status of the hard drives. See
and Table 2-3. The SCSI backplane firmware controls the drive power-on/fault indicator.
Figure 2-3. SCSI Hard-Drive Indicators
Table 2-3 lists the drive indicator patterns. Different patterns are displayed as drive events occur in the system. For example, if a hard drive fails, the "drive
failed" pattern appears. After the drive is selected for removal, the "drive being prepared for removal" pattern appears, followed by the "drive ready for
insertion or removal" pattern. After the replacement drive is installed, the "drive being prepared for operation" pattern appears, followed by the "drive online"
pattern.
NOTE: If the optional ROMB card is not installed, only the "drive online" indicator pattern appears. The drive-activity indicator also blinks when the drive
is being accessed.
Table 2-3. SCSI Hard-Drive Indicator Patterns
Condition
Identify drive
Drive being prepared for removal
Drive ready for insertion or removal Both drive indicators are off.
Drive being prepared for operation
Drive predicted failure
Drive failed
Drive rebuilding
Drive online
Back-Panel Features
Figure 2-4 shows the controls, indicators, connectors, and expansion slots located on the system's back panel.
For information about the connectors, see
l
The blue and amber system status indicator combines the functions of the separate blue and amber system status indicators on the front panel. For
l
more information, see Table 2-2.
For information about the identification buttons located on the front and back of the system, see
l
NOTE: If you turn off the system using the power button and the system is running an ACPI-compliant operating system,
the system performs a graceful shutdown before the power is turned off. If the system is not running an ACPI-compliant
operating system, the power is turned off immediately after the power button is pressed.
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 blue system status indicator on the front and back blinks until one of the buttons is
pushed again.
Connects a USB 1.1-compliant device to the system.
Connects a monitor to the system.
Indicator Pattern
The green power-on/fault indicator blinks four times per second.
The green power-on/fault indicator blinks two times per second.
The green power-on/fault indicator is on.
The power-on/fault indicator slowly blinks green, amber, and off.
The amber power-on/fault indicator blinks four times per second.
The green power-on/fault indicator blinks slowly.
The green power-on/fault indicator is on.
"System Board Connectors" in "Jumpers and Connectors."
"Front-Panel Features."
Figure 2-3