User manual HP COMPAQ PROFESSIONAL 6000 COMPAQ HIGHLY PARALLEL SYSTEM ARCHITECTURE

[. . . ] This test is not a determination or product quality or 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 Workstation are trademarks and/or registered trademarks of Microsoft Corporation. Pentium and Pentium Pro are trademarks of Intel Corporation Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies. [. . . ] The Compaq Professional Workstation 5100, 6000 and 8000 use two memory controllers, each with a bandwidth of 533MB/second. Therefore, total memory bandwidth increases to 1. 07GB/second- two to four times that of other systems. The Compaq Professional Workstations use 60ns, EDO DRAM DIMMs with ECC support for fast and reliable memory operation. The Compaq Professional Workstation 5100 and 6000 support a maximum memory configuration of 512MB (which is the maximum 3 Figure 2. Dual memory controllers WHITE PAPER (cont'd) . 4. Compaq Workstations ­Highly Parallel System Architecture supported by the Intel Pentium II processor). For computational intensive applications that use large data sets, the Compaq Professional Workstation 8000 supports up to 3GB of memory. To ensure that both memory controllers in the Highly Parallel System Architecture are being used, and therefore processing memory requests concurrently, memory should be placed in the appropriate memory slots. The Compaq Professional Workstation 5100 includes eight DIMM slots on the system board. DIMM slots one through four are associated with one memory controller and DIMM slots five through eight are associated with the other memory controller. To ensure optimum performance, the table below outlines the suggested memory configurations to use based on the amount of total memory desired. TABLE 1: GUIDE FOR CONFIGURING DUAL MEMORY BUSES TO OPTIMIZE PERFORMANCE IN THE COMPAQ PROFESSIONAL WORKSTATION 5100 DIMM Slot 4 DIMM Slot 5 Memory Bus 1 DIMM DIMM Slot 2 Slot 3 1x 16MB 1x 16MB 1x 32MB 1x 16MB 1x 32MB 1x 64MB 1x 16MB 1x 32MB 1x 32MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 32MB 1x 32MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 16MB 1x 32MB 1x 64MB 1x 16MB 1x 32MB 1x 16MB 1x 32MB 1x 32MB 1x 64MB 1x 32MB 1x 32MB 1x 64MB 1x 64MB 1x 128MB 1x 64MB 1x 16MB 1x 32MB 1x 16MB 1x 32MB 1x 16MB 1x 32MB 1x 32MB 1x 64MB 1x 32MB 1x 32MB 1x 64MB 1x 64MB 1x 128MB 1x 64MB 1x 16MB 1x 32MB Memory Bus 2 DIMM DIMM Slot 6 Slot 7 Memory Size 32MB* 64MB* 128MB 128MB 256MB 256MB 256MB 384MB 512MB 512MB DIMM Slot 1 1x 16MB 1x 16MB 1x 32MB 1x 16MB 1x 32MB 1x 32MB 1x 64MB 1x 32MB 1x 32MB 1x 64MB DIMM Slot 8 Optimization Level** 1 1 2 1 1 2 3 1 1 1 * Indicates memory configuration of standard models ** The degree of performance optimization is indicated by a numerical range. Level 1 represents the best performance. Levels 2, 3, and 4 indicate progressively lower performance. Both the Compaq Professional Workstation 6000 and 8000 come with four DIMM slots on their system boards, and a memory expansion board is available that can be used in both systems to provide an additional eight DIMM slots. The memory expansion board comes standard with the Compaq Professional Workstation 8000 and is offered as an upgrade for the Professional Workstation 6000. The memory slots on the system board and the memory slots on the memory expansion board are associated with separate memory controllers and should both be populated with memory to improve system performance. The table below outlines the best memory configuration based on the amount of memory desired. WHITE PAPER (cont'd) . 5. Compaq Workstations ­Highly Parallel System Architecture TABLE 2: GUIDE FOR CONFIGURING DUAL MEMORY BUSES TO OPTIMIZE PERFORMANCE IN THE COMPAQ PROFESSIONAL WORKSTATION 6000 AND 8000 Memory Size Slot 1 32MB 1 64MB 64MB 64MB 1 128MB 128MB 2 128MB 128MB 1 256MB 256MB 256MB 256MB 512MB 512MB 512MB 512MB 1GB 1GB 1GB 1GB 2GB 2GB 1 2 Memory Bus 1 DIMMs Slot 2 1x 16MB 1x 16MB 1x 16MB 1x 32MB 1x 16MB 1x 32MB 1x 32MB 1x 64MB 1x 32MB 1x 64MB 1x 64MB 1x 128MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 128MB 1x 128MB 1x 128MB 1x 1x 128MB 128MB 1x 1x 128MB 128MB 1x 1x 128MB 128MB 1x 128MB 1x 128MB 1x 128MB 1x 64MB 1x 128MB 1x 128MB 1x 256MB 1x 256MB 1x 1x 256MB 256MB 1x 1x 256MB 256MB 1x 256MB 1x 256MB 1x 256MB 1x 256MB 1x 256MB 1x 256MB 1x 256MB 1x 256MB 1x 64MB 1x 128MB 1x 128MB 1x 64MB 1x 128MB 1x 128MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 32MB 1x 32MB 1x 32MB 1x 64MB 1x 32MB 1x 64MB 1x 32MB 1x 32MB 1x 32MB 1x 16MB 1x 16MB 1x 16MB 1x 32MB 1x 16MB 1x 32MB 1x 16MB 1x 16MB 1x 16MB 1x 16MB 1x 16MB Slot 3 Slot 4 Slot 1 Slot 2 Slot 3 Memory Bus 2 DIMMs Slot 4 Slot 5 Slot 6 Slot 7 Slot 8 Opt. Level ** 1x 16MB 1x 16MB 1x 16MB 1x 32MB 1x 16MB 1x 32MB 1x 32MB 1x 64MB 1x 32MB 1x 64MB 1x 64MB 1x 128MB 1x 64MB 1x 64MB 1 1 3 3 1x 16MB 1 2 3 4 1x 32MB 1 2 3 4 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1 2 3 4 1x 64MB 1x 128MB 1x 128MB 1x 64MB 1x 64MB 1x 64MB 1x 64MB 1 1 1x 128MB 1x 128MB 1x 128MB 1x 128MB 3 3 1x 256MB 1x 256MB 1x 256MB 1x 256MB 1x 256MB 1x 256MB 1 2 Standard memory configuration in Compaq Professional Workstation 6000 Standard Memory configuration in Compaq Professional Workstation 8000 ** The degree of performance optimization is indicated by a numerical range. [. . . ] The Highly Parallel System Architecture significantly reduces these bottlenecks by incorporating enhanced 6 WHITE PAPER (cont'd) Compaq Workstations ­Highly Parallel System Architecture subsystem resources, such as dual memory controllers and dual peer-PCI buses, to accommodate the increased data traffic from the multiple CPUs. Dual Independent Bus Architecture Complimenting the Highly Parallel System Architecture, both the Pentium Pro and Pentium II use Intel's Dual Independent Bus architecture providing two (dual) independent buses: a processor-to-cache bus, and a processor-to-memory bus. The processor-to-memory bus runs at the core system speed of 66MHz. The processor-to-cache bus speed depends on which processor is being used. [. . . ]