Dell SC1425 Back-Panel Features and Indicators, System Features, Connecting External Devices

	NOTICE: 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.
Diagnostic	The diagnostic indicators aid in diagnosing and troubleshooting the system. For more information, see your Installation and
indicators (4)	Troubleshooting Guide.

Back-Panel Features and Indicators

Figure 1-2 shows the controls, indicators, and connectors located on the system's back panel.

Figure 1-2. Back-Panel Features and Indicators

Connecting External Devices

When connecting external devices to your system, follow these guidelines:

•Install device drivers. (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.

•Ensure that you attach devices to the correct connectors.

•With the exception of USB devices, always attach external devices while your system is turned off. Then, 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."

System Features

•Up to two Intel® Xeon™ microprocessors with a front-side bus speed of 800 MHz, an internal operating speed of at least 2.8 GHz, and at least 1 MB of internal cache.

•Support for symmetric multiprocessing (SMP), which is available on systems with two Intel Xeon microprocessors. SMP greatly improves overall system performance by dividing microprocessor operations between independent microprocessors. To take advantage of this feature, you must use an operating system that supports multiprocessing.

NOTE: If you decide to upgrade your system by installing a second microprocessor, you must order the microprocessor upgrade kits from Dell. Not all versions of the Intel Xeon microprocessor will work properly as additional microprocessors. The upgrade kit from Dell contains the correct version of the microprocessor as well as the instructions for performing the upgrade. Both microprocessors must have the same internal operating frequency and cache size.

•A minimum of 256 MB of registered PC-3200 DDR 2 400 SDRAM memory modules, upgradable to a maximum of 12 GB by installing combinations of 256- MB, 512-MB, 1-GB, and 2-GB (when available), 2-way interleaving memory modules in the six memory module sockets on the system board.

•Support for software RAID levels 0 and 1.

•An optional IDE CD, DVD, or CD-RW/DVD-ROM combo drive. NOTE: DVD devices are data only.

•A 450-W non-hot-pluggable power supply.

The system board includes the following features:

•A single 3.3-V, 64-bit, 133MHz PCI-X expansion slot.

•Support for the following internal hard-drive (non-hot-plug) configurations:

¡Up to two internal 1-inch SATA hard drives with an integrated SATA controller