Dell PowerEdge 2800 - Manual (Page 12)

Connecting External Devices
When connecting external devices to your system, follow these guidelines:
l Most devices must be connected to a specific connector and device drivers must be installed before the device operates properly. (Device drivers are
normally included with your operating system software or with the device itself.) See the documentation that accompanied the device for specific
installation and configuration instructions.
l Always attach external devices while your system is turned off. Next, turn on any external devices before turning on the system (unless the
documentation for the device specifies otherwise).
For information about individual connectors, see your Installation and Troubleshooting Guide. For information about enabling, disabling, and configuring I/O ports
and connectors, see "
Using the System Setup Program ."
Power Indicator Codes
The power button on the front panel controls the power input to the system's power supplies. The power indicator can provide information on power status
(see
Figure 1 -2 ). Table 1 -4 lists the power button indicator codes.
Table 1-4. Power Button Indicators
The indicators on the optional redundant power supplies show whether power is present or whether a power fault has occurred (see Figure 1 -5 ).
Table 1-5. Redundant Power Supply Indicators
Figure 1-5. Redundant Power Supply Indicators
System Features
l One or two Intel® Xeon™ processors with an internal operating speed of at least 2.8 GHz, internal cache of at least 1 MB, and a front-side bus
operating at 800 MHz.
l Support for symmetric multiprocessing (SMP), which is available on systems with two Intel Xeon processors. SMP greatly improves overall system
performance by dividing processor operations between independent processors. To take advantage of this feature, you must use an operating system
that supports multiprocessing.
Indicator Function
On Indicates that power is supplied to the system and the system is operational.
Off Indicates that no power is supplied to the system.
Blinking Indicates that power is supplied to the system, but the system is in a standby state. For information on standby states, see your operating
system documentation.
NOTE: The power supply fans operate when a valid AC source is connected to the power supply even though the system is may not be powered on.
Indicator Function
Power supply status Green indicates that the power supply is operational.
Power supply fault Amber indicates a problem with the power supply.
AC line status Green indicates that a valid AC source is connected to the power supply.
NOTE: If you decide to upgrade your system by installing a second processor, you must order the processor upgrade kits from Dell. Not all
versions of the Intel Xeon processor will work properly as additional processors. The upgrade kit from Dell contains the correct version of the
processor, heat sink, and fan as well as the instructions for performing the upgrade. Both processors must have the same internal operating
frequency and cache size.