Dell PowerEdge 2650 - Manual (Page 22)

l Up to two hot-pluggable, 500-W power supplies in a 1 + 1 redundant configuration.
l Hot-pluggable system cooling fans and two additional fans integrated in the power supplies.
l An intrusion switch that signals the appropriate systems management software if the bezel is removed.
System Board Features
l Three 64-bit PCI/PCI-X slots located on the riser card (two slots on bus 1 and one slot on bus 2). Slots accept full-length cards designed for PCI-X 133
MHz, 100 MHz, 66 MHz, or 33 MHz.
l An integrated VGA-compatible video subsystem with an ATI RAGE XL video controller. This video subsystem contains 8 MB of SDRAM video memory
(nonupgradable). Maximum resolution is 1600 x 1200 x 16.7 million colors (noninterlaced).
l An integrated, dual-channel Ultra3 SCSI host adapter. The internal channel supports up to five SCSI hard drives on a 1 x 5 or 2 + 3 split SCSI backplane
and provides internal RAID support. The SCSI backplane automatically configures SCSI ID numbers and SCSI termination on individual hard drives,
greatly simplifying drive installation.
l Memory spare row feature, which provides your system with failover to a previously reserved row of memory if one row of memory fails.
l Optional ROMB through an integrated subsystem that incorporates a 128 MB cache memory module, a RAID battery, and a RAID key.
l Two integrated 10/100/1000 NICs, which provide an Ethernet interface.
l Embedded systems management circuitry that monitors operation of the system fans as well as critical system voltages and temperatures. The systems
management circuitry works in conjunction with your systems management software.
l Back-panel connectors including video, keyboard, mouse, two serial, two USB, embedded remote access Ethernet, and two NICs.
l Front-panel connectors including video, keyboard, mouse, and USB.
For more information about specific features, see " Technical Specifications ."
Software Features
The following software is included with your system:
l A System Setup program for quickly viewing and changing system configuration information. For more information on this program, see " Using the
System Setup Program ."
l Enhanced security features, including a system password and a setup password, available through the System Setup program.
l System diagnostics for evaluating system components and devices. For information on using the system diagnostics, see "Running System Diagnostics"
in your Installation and Troubleshooting Guide.
l Video drivers for displaying many application programs in high-resolution modes. For more information on drivers, see " Using the Dell OpenManage
Server Assistant CD ."
l SCSI device drivers that allow the operating system to communicate with devices attached to the integrated SCSI subsystem. For more information on
drivers, see "
Installing and Configuring SCSI Drivers ."
l Systems management software and documentation.
l Optional solutions software for web hosting, caching, or load balancing. See your solutions software documentation for more information.
Supported Operating Systems
l Microsoft Windows 2000 Server and Advanced Server
l Windows NT® 4.0 Server, Enterprise Edition
l Red Hat Linux 7.x
Power Protection Devices
A number of devices are available to protect your system from the effects of power problems such as power surges, transients, and power failures. The
following subsections describe some of these devices.
Surge Protectors
Surge protectors are available in a variety of types and usually provide a level of protection commensurate with the cost of the device. Surge protectors
prevent overvoltage spikes, such as those that may occur during an electrical storm, from entering the system through the electrical outlet. Surge protectors
do not offer protection against brownouts, which occur when the voltage drops more than 20 percent below the normal AC line voltage level.
Line Conditioners
Line conditioners go beyond the overvoltage protection of surge protectors. Line conditioners keep a system's AC power source voltage at a fairly constant
level and provide protection from brownouts of short duration. Because of this added protection, line conditioners cost more than surge protectors—up to
several hundred dollars. However, these devices cannot protect against a complete loss of power.
Uninterruptible Power Supplies
UPS systems offer the most complete protection against variations in power because they use battery power to keep the system running when AC power is
unavailable or unusable. The battery is charged by the AC power while it is available so that once AC power is lost, the battery can provide power to the