Dell Precision 620 User Manual
Page 92
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Introduction: Dell Precision™ WorkStation 620 Systems User's Guide
Overview
Dell Precision 620 systems are high-speed, upgradeable workstations, designed around Intel
® Pentium® III Xeon™ microprocessors. These
systems support the high-performance Peripheral Component Interconnect (PCI) bus and the accelerated graphics port (AGP) bus. One of the 32-
bit PCI slots has a port extension that supports an optional redundant array of independent disks (RAID) card.
This section describes the major hardware and software features of the system and provides information you need to reinstall the operating
system, if necessary. It also provides information about the indicators and controls on the computer's front panel and discusses connecting external
devices to the computer.
System Features
The system offers the following features:
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An Intel Pentium III Xeon microprocessor. The following processor options are available:
Single or dual Pentium III Xeon processor(s) with a front-side bus external speed of 133 megahertz (MHz).
The Intel Pentium III Xeon processor includes MMX™ technology designed to handle complex multimedia and communications software.
This processor incorporates a new instruction set called Streaming SIMD Extensions (SSE). SSE allows the microprocessor to process
multiple data elements in parallel, thereby improving system performance when you are running application programs written to take
advantage of MMX technology. The SSE instruction set is made up of more than 70 new instructions and includes floating-point single
instruction, multiple data (SIMD) to enhance 3D display performance and other multimedia capabilities.
The Intel Pentium III Xeon processor also includes the new processor serial number feature, which uniquely identifies each Pentium III
processor. This feature can be enabled or disabled (default) (see
CPU Serial Number
in System Setup Options).
The Intel Pentium III Xeon processor has a 16-kilobyte (KB) internal data cache and a 16-KB internal instruction cache, an internal math
coprocessor, and other advanced internal logic.
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A secondary cache of static random-access memory (SRAM) integrated in the microprocessor.
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Dual-processor capability. The system can be purchased with two processors. If your system has one processor, you can install a second
Intel Pentium III Xeon processor (operating at the same speed as the installed processor), which you can purchase as a kit from Dell. Dual
processing improves performance under operating systems that support multiprocessing, such as Microsoft
®
Windows NT
®
4.0.
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Self-Monitoring Analysis and Reporting Technology (SMART) support, which warns you at system start-up if the hard-disk drive may be
becoming unreliable. To take advantage of this technology, you must have a SMART-compliant hard-disk drive in the computer. All enhanced
integrated drive electronics (EIDE) and small computer system interface (SCSI) hard-disk drives shipped with Dell Precision 620 systems
are SMART-compliant.
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A 32-bit integrated Crystal CS4614 PCI SoundFusion audio controller that is Sound Blaster Pro-compatible and supports Microsoft
DirectSound, DirectSound3D, and wavetable synthesis. See "
Using the Integrated Audio Controller
" for details.
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System memory of up to 2 gigabytes (GB). Your system has dual Rambus dynamic random-access memory (RDRAM) Rambus in-line
memory modules (RIMMs). The memory expansion cards (MEC) support up to eight RIMMs (four modules on each of two channels, A and
B). MECs support modules in any paired combination of 64-, 128-, 256-, or 512-megabyte (MB) module density. See "
Adding Memory
" for
details on installing additional memory.
The memory subsystem also provides error checking and correction (ECC) capability, which corrects all single-bit memory errors and
detects all double-bit errors.
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The system's basic input/output system (BIOS), which resides in flash memory and can be upgraded remotely or by diskette if required.
Important Note to Microsoft Windows NT 4.0 Users
NOTE: Dell Precision WorkStation 620 systems do not support the 16-bit Industry-Standard Architecture (ISA) bus.
NOTE: Dell Precision WorkStation 620 systems support 2.8-volt (V) processor cartridges only.