HP Compaq SP750, Deskpro AP550, Compaq AP550 Supplementary Manual
WHITE PAPER
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October 1999
Prepared By
Workstation Marketing
Compaq Computer
Corporation
Contents
Introduction.................................3
Intel 840 Chipset.......................3
Scalable Bandwidth Features....3
840 Base Implementation.........4
840 Full-Featured
Implementation........................5
Customer Benefits....................6
Pentium III and Pentium III Xeon
Processors....................................6
New Processor Features............6
Customer Benefits....................6
RAMBUS Technology.................7
Customer Benefits....................7
Hard Drives .................................7
Ultra3 SCSI Hard Drives..........7
Ultra ATA/66 Hard Drives .......9
Cyclical Redundancy Check
(CRC)....................................10
Intel PRO/100+ Management
Adapter......................................11
Supported Alerts ....................12
Implementation Requirements 13
AGP ..........................................13
AGP Modes ...........................14
AGP Pro ................................15
Workstation Software Platform ..15
Interoperability.......................15
Intelligent Manageability........16
System Software Manager......17
Unattended Network Installation
Toolkit (UNIT) ......................17
Insight Manager Lite Console
Client .....................................17
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Compaq Professional Workstation
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SP750 and AP550 Key
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Technologies White Paper
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The purpose of this paper is to provide an overview of the Key Technologies
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incorporated into the new Compaq Professional Workstation SP750 and
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AP550 models. This paper concentrates on covering those features and
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technologies that have unique customer benefits. The objective is to provide
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the technical information and benefits of these features.
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11BX-1199A/WWEN
WHITE PAPER (cont’d) Compaq Professional Workstation - Key Technologies
NOTICE
The information in this publication is subject to change without notice and is provided “AS IS” WITHOUT
WARRANTY OF ANY KIND. THE ENTIRE RISK ARISING OUT OF THE USE OF THIS
INFORMATION REMAINS WITH RECIPIENT. IN NO EVENT SHALL COMPAQ BE LIABLE FOR
ANY DIRECT, CONSEQUENTIAL, INCIDENTAL, SPECIAL, PUNITIVE OR OTHER DAMAGES
WHATSOEVER (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS
PROFITS, BUSINESS INTERRUPTION OR LOSS OF BUSINESS INFORMATION), EVEN IF
COMPAQ HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
The limited warranties for Compaq products are exclusively set forth in the documentation accompanying
such products. Nothing herein should be construed as constituting a further or additional warranty.
This publication does not constitute an endorsement of the product or products that were tested. The
configuration or configurations tested or described may or may not be the only available solution. This test
is not a determination of product quality of correctness, nor does it ensure compliance with any federal,
state, or local requirements.
Deskpro is a trademark of Compaq Computer Corporation.
Microsoft, Windows, and Windows NT are trademarks and/or registered trademarks of Microsoft
Corporation.
Intel, Pentium, and Xeon are trademarks and/or registered trademarks of Intel Corporation.
Product names mentioned herein may be trademarks and/or registered trademarks of their respective
companies.
© 1999 Compaq Computer Corporation. All rights reserved.
Compaq Professional Workstation SP750 and AP550 Key
Technologies White Paper
October 1999
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WHITE PAPER (cont’d) Compaq Professional Workstation - Key Technologies
Introduction
Compaq Professional Workstations are high performance workstations that provide exceptional
price/performance and scalability for technical and creative professional customers. Customer
market segments include:
• Financial trading or analysis
• Computer aided design (CAD)
• Computer-aided engineering (CAE)
• Digital content creation (DCC)
• Electronic design automation (EDA)
• Software development
• Geographical information systems (GIS)
Compaq Professional Workstations offer customers the latest in useful technological innovation
to meet their needs today and in the challenging workstation environments of tomorrow, with
models designed for a variety of customers. This paper describes the key technologies for new
Compaq Professional Workstation AP550 and SP750 models.
Intel 840 Chipset
Compaq Professional Workstation AP550 and SP750 models incorporate the new Intel 840
chipset featuring Scalable Bandwidth Technology. The 840 chipset has been designed specifically
to meet the needs of high-performance workstation applications by providing new levels of
performance, scalability, and end user productivity. The Scalable Bandwidth Technology design
philosophy is similar in concept to an enhanced version of the Compaq Highly Parallel System
Architecture (HPSA) design implemented on the Compaq Professional Workstation SP700.
Scalable Bandwidth Features
• Support for up to 4 GB of memory
• AGP 4X providing 1 GB/s of available graphics bandwidth
• 800-MHz Direct Rambus memory support via two Rambus channels for an aggregate
bandwidth of 3.2 GB/s
• Dual-peer PCI buses to balance the I/O workload and performance
• Dual SCSI bus channels to balance disk subsystem work load
• 1024 byte prefetch cache to reduce memory latency cycles. This cache reduces memory
latencies on applications that access memory sequentially.
• 64-bit PCI technology at 33 or 66 MHz enables high-speed drive and network connections
• 133-MHz system bus for maximum data transfer bandwidth of 1.07 GB/s on the front side
bus
The AP550 features what is referred to as the base implementation of the chipset, while the
SP750 features the full-featured implementation. The full-featured implementation has a slightly
more robust feature set with 64-bit/66 MHz PCI technology, dual channel SCSI bus, and support
for larger memory capacity.
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WHITE PAPER (cont’d) Compaq Professional Workstation - Key Technologies
840 Base Implementation
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WHITE PAPER (cont’d) Compaq Professional Workstation - Key Technologies
840 Full-Featured Implementation
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WHITE PAPER (cont’d) Compaq Professional Workstation - Key Technologies
Customer Benefits
• Tight integration of the latest technologies to boost system performance
• Faster access to data in memory
• Support for the latest, fastest Intel Pentium III Xeon and Pentium III processors
• Support for the latest and future enhanced 3D graphics controllers with APG Pro
• Double the peak bandwidth of the previous AGP 2X with AGP 4X
For more information about the 840 chipset, visit the Intel web site at: http://www.intel.com/
Pentium III and Pentium III Xeon Processors
Intel has enhanced the Pentium III and Pentium III Xeon processors to take advantage of the new
Intel 840 chipset. These processors feature 0.18 micron technology and key attributes of the P6
microarchitecture, such as Dynamic Execution, a multi-transactional system bus, Intel MMX
media enhancements, and Streaming SIMD Extensions. The SP750 and AP550 workstations with
the newest processors from Intel are showing industry-leading benchmark performance with
SpecINT_base 95 at 35.6 and SpecFP_base95 at 30.6.
New Processor Features
• Support for faster processor speeds: 600EB MHz, 667 MHz, and 733 MHz
• Advanced transfer cache − full-speed 256K Level 2, 8-way set associative, 256-bit data bus
to the Level 2 cache, reduced latency interface to the cache data, and 11.7 GB/s maximum
bandwidth on Level 2 cache transfers at 733 MHz core frequency
• Advanced system buffering – six fill buffers providing a 50% increase in concurrent
nonblocking data cache operations, eight bus queue entries allow more outstanding
memory/bus operations, and four writeback buffers that reduce blocking during cache
replacement operations and faster de-allocation times for multiple fill buffer
• Support for 133-MHz Front Side Bus (FSB) with a peak bandwidth of 1.07 GB/s
• Supports larger memory bandwidth – 1.6 GB/s per memory channel
Customer Benefits
• Higher core clock frequency (MHz) performance with 133-MHz FSB and 256-KB full speed
L2 cache provide the power needed to simultaneously run user applications and background
IT services that help reduce network bandwidth requirements and protect corporate data.
• Streaming SIMD Extensions provide network bandwidth improvements from enhanced
TCP/IP performance and compression/decompression, as well as an enhanced 3D and
multimedia processing hardware platform. Delivers expanded support for rich data types and
emerging applications and interfaces, such as speech recognition, video and audio.
• Improved overall system performance by enhancing the speed at which data is transferred
between the processor and other parts of the system.
• Delivers the latest technology with a platform that provides performance headroom and
longevity into the year 2000.
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