HP Vectra XU 6/XXX HP Vectra XU - Guide to Optimizing Performance, Not Orderab
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- HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 1
Guide to Optimizing Performance HP Vectra XU - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 2
Notice The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 3
Guide to Optimizing Performance A guide to the performance benefits of your HP Vectra XU PC. - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 4
This guide is presented in two chapters: • Your PC's performance features Describes the new features used by your PC, with suggestions on how to optimize their performance. • Technical reference Gives general technical reference information, with emphasis on the new features used by the HP Vectra XU - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 5
PC's Processor 4 Advantages of Dual Processor Configurations 7 Matching Memory Capacity to Your Requirements 15 Benefits of 32-bit Applications Performance 37 Your PC's Audio Resources 43 HP PCI Integrated 10/100BT LAN Interface 44 HP PCI Integrated 10/100VG LAN Interface 45 Performance Topic - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 6
Architectural Overview 48 The Intel Pentium Pro Processor 50 Characteristics 50 Superpipeline Architecture 51 Integrated Cache Memory 53 Higher Clock Speeds 57 The Pentium Pro Local Bus 57 Main Memory 58 Data Integrity 60 Memory Upgrade Path 61 Technical Characteristics 63 vi English - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 7
1 Your PC's Performance Features This chapter describes the new features of your HP Vectra XU PC and how these features can bring optimized performance to your desktop application. - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 8
1 Your PC's Performance Features Overview Overview Your HP Vectra XU PC provides a number of new features that bring • Dual processing capability • Flexible memory configuration • Advanced operating system support • PCI (Peripheral Component Interconnect) bus • Support for Ultra SCSI devices • High - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 9
PC's Configuration The configuration of your PC has been optimized by HP for general use. However, the performance of your PC can be of your PC's processor Ì Advantages of dual processor configurations Ì Matching memory capacity to your requirements Ì Benefits of 32-bit applications Ì Installing fast - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 10
HP Vectra XU PC uses the most powerful processor currently available in any HP Vectra on the local bus (such as data transfers with memory) are synchronized to this clock. Other devices in the the 150 MHz processor uses the 60 MHz clock source and multiplies this by 5/2 to produce its own 150 MHz - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 11
to complete. The Pentium Pro processor integrates some functions that were performed by external components in previous generations of PCs; level-two cache memory is an example of one of these functions. This means that the Pentium Pro processor can perform a significant proportion of its work - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 12
board switches 1 2 3 4 5 6 7 8 Switch Switch Switch Processor Speed 4 6 7 (Internal Clock) ON ON OFF OFF ON OFF ON OFF ON OFF OFF ON 150 MHz 166 MHz 180 MHz 200 MHz Local Bus Speed (External clock) 60 MHz 66 MHz 60 MHz 66 MHz Clock Multiplication Factor 5/2 5/2 3 3 6 English - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 13
(MPS) for dual processing in PCs. This standard defines how multiple processors work with a single set of system memory and I/O resources. The HP Vectra XU supports symmetric multiprocessing, which means that each processor can perform any task. Symmetric multiprocessors appear to the user as - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 14
Yes Yes Yes Multithreaded? No No Yes Yes Yes Yes Yes Yes MPS-Ready? No No No Yes Yes Yes No No Refer to the manual supplied with your operating system for more information on its characteristics and capabilities. 8 English - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 15
1 Your PC's Performance Features Advantages of Dual Processor Configurations Multithreaded Operating Systems Any operating system consists of a number of functions, each of which controls some small part of the PC's operation. Application software uses these functions as building blocks to create - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 16
Applications written specifically for multithreaded operating systems are also multithreaded. These applications permit their own operation to be performed through separate threads. Refer to the manual supplied with your software application to determine if it is multithreaded. 10 English - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 17
of Dual Your HP Vectra PC is able to bring the advantages of multiprocessing to Processing in your PC your desktop. With two processor's installed, the power of your PC is significantly increased. However, this does not mean that your PC can process individual commands and instructions more quickly - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 18
1 Your PC's Performance Features Advantages of Dual Processor Configurations One single-threaded application Multiple single-threaded applications or one multithreaded application O/S 1 and O/S 2 are multithreaded operating system functions AP 1 and AP 2 are application functions This distinction - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 19
of Dual Processing One of the most important functions that a processor performs is handling interrupts. An interrupt is a request for attention or service from another area of the PC. The processor's ability to respond to interrupts is an essential part of your PC's operation. Interrupts allow - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 20
HP Vectra PC MPS-compliant multiprocessing to desktop applications. Compared with the previous generation Pentium processor, the Pentium Pro offers an additional performance advantage when used in dual processing configurations: an integrated 256 KB level-two cache memory. Cache memory increases - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 21
to Your Requirements The memory supplied with your HP Vectra XU PC is sufficient to run any standard PC operating system. However, for certain applications, the performance of your PC will be improved by installing additional memory. Your PC's Memory Capacity The memory capacity of your PC - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 22
If you use memoryhungry applications (for instance, a computer-aided design program), or frequently run multiple applications, your PC will require more memory than indicated below. Operating System Windows for Workgroups Windows NT Windows 95 OS/2 Warp Minimum Configuration 4 MB - 8 MB 12 MB 8 MB - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 23
Your Requirements If You Do Not Have Enough Memory If you do not have sufficient memory for the applications you are running, your PC will compensate by using hard disk space as virtual memory. Since your processor is able to access memory approximately 200 times faster than it can access a hard - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 24
than from hard disk. Because much of your PC's work is repetitive, disk caches offer a significant performance advantage with most applications. The amount of memory dedicated to the disk cache is determined by the operating system you are using. Data copied from the hard disk drive to the disk - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 25
's Performance Features Matching Memory Capacity to Your Requirements Installing More Memory If your PC has less memory installed than your operating system and applications require, then installing more memory will significantly improve your PC's performance. Performance Memory Capacity English 19 - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 26
1 Your PC's Performance Features Matching Memory Capacity to Your Requirements Does Installing More Once you have sufficient memory, any extra memory you install will Memory Always have no effect on performance. Indeed, surplus memory will probably Improve Performance? not be used. Performance - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 27
of 32-bit Applications Benefits of 32-bit Applications Your HP Vectra PC has been designed to offer optimized performance. The benefit 32-bits in length; the instructions are 32-bits long and act on 32-bit data items which have corresponding 32-bit memory addresses. 16-bit Applications Many - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 28
Pro Processor The Pentium Pro processor in your PC is a 32-bit processor. This means that it has been specifically designed to execute 32-bit instructions, and has 32-bit registers for storing data and addresses. Your PC will give optimized performance when running 32-bit applications. If you run - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 29
impact on performance is significant. Processor pipeline Only one 16-bit instruction can be in the pipeline at once Next instruction waiting to enter the pipeline Instruction execution steps NOTE For the reasons explained above, HP does not recommend using your PC to run 16-bit applications - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 30
16-bit? applications, that have been adapted for use under Windows 95, Windows NT, or OS/2, may also be 16-bit. Refer to the manual supplied with your application software for more details. Which Applications are All applications written specifically for Windows NT, Windows 95 or 32-bit? OS - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 31
The PCI Bus 1 Your PC's Performance Features Installing Fast Peripherals on the PCI Bus Installing Fast Peripherals on the PCI Bus The HP Vectra XU PC provides six slots for accessory boards. Two of these slots are already occupied by your advanced graphics controller and LAN controller. The - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 32
needs to exchange large quantities of data with your PC's processor or memory will benefit from the bandwidth (data handling capability) of the PCI board in your PC, HP recommends that the PCI bus is your first choice for expansion. PCI Plug and Play The PCI standard supports Plug and Play, which - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 33
Performance Features Increasing the Speed Limit With Ultra SCSI SCSI Interface Standards Increasing the Speed Limit With Ultra SCSI Your HP Vectra XU PC integrates an advanced SCSI controller for connecting mass storage devices. This SCSI controller provides a highcapability SCSI channel with two - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 34
which gives data transfer rates of up to 20 MB per second. As new mass storage devices supporting this standard become available, you will be able to make use of them immediately. Installing an using the SCSISelect Utility. Refer to your User's Guide for information on this Utility. 28 English - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 35
PC. 3 Turn on your PC. Any SCSI device connected to your PC which supports SCAM will be configured automatically by your PC's SCSI BIOS. You can confirm For more information on your PC's Setup program, refer to your PC's User's Guide. By default, your PC is set to boot from an IDE hard disk drive - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 36
1 Your PC's Performance Features Increasing the Speed Limit With Ultra SCSI The External SCSI Connection How to enable Ultra SCSI NOTE The external SCSI connector on your PC's rear panel can be used to connect external SCSI devices like tape drives. Use of the external connector will be detected - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 37
1 Your PC's Performance Features Increasing the Speed Limit With Ultra SCSI Disk Striping If you are using Windows NT, your PC's integrated SCSI controller is able to improve the performance of your SCSI hard disk drives by using disk striping. This is a method of grouping multiple disk drives - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 38
increased and so the delaying effect of the buffer-to-disk transfer is removed. Disk striping is only available with Windows NT. Refer to the manual supplied with this operating system for information on how to make use of this feature. Disk striping may also be available for your PC's IDE - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 39
be used for connecting up to two IDE devices. Both IDE channels support the highest data transfer rates currently available and offer optimized performance with data with IDE devices: Programmed Input/Output (PIO) modes and Direct Memory Access (DMA) modes. When transferring data to or from an IDE - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 40
optimized between the PCI bus and the IDE device. Your PC's IDE controller supports five PIO modes, PIO Mode 0 - 4, and three DMA modes, Capability The integrated IDE controller transfers data with your PC's processor and memory through the PCI bus. PCI devices fall into two categories: slaves and - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 41
As a PCI master, the IDE controller can transfer data to and from memory without intervention from your PC's processor. This means that the processor is and memory without intervention from the processor Memory You can configure your PC's IDE controller as a PCI master through the IDE driver used - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 42
performance with any combination of IDE devices, your PC's IDE controller supports split-mode timing on both IDE channels. This means that it is is transferred with faster IDE devices at the maximum rate supported Different transfer rates are used for IDE devices of different capabilities connected on - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 43
the latest graphic acceleration features as well as MPEG-1 software support for high quality video playback. The Millennium Video Adapter gives PC's processor and converts it into pixel data for your display • Video memory (frame buffer), where the pixel data is stored by the graphics controller • - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 44
), while in true color modes, each pixel can require up to four bytes (32-bits). 8-Bit pixel data in video memory 24-Bit pixel data in video memory Pixel displayed in one of 256 displayable colors Pixel displayed in one of 16,7 M displayable colors The screen resolution determines how - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 45
the graphics controller will locate the pixel data representing the area to be copied (in the video memory) and duplicate it in another part of the video memory. Data in video memory Data duplicated in video memory Image on your PC's display Image duplicated on your PC's display To speed up the - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 46
whatever the operating system, application, or video driver. WRAM Video Memory The key to your Millennium Video Adapter's MB WRAM memory module. The 2 MB WRAM module can be ordered from HP. Contact your dealer for information about the 6 MB WRAM module. The amount of WRAM video memory installed - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 47
1600 ! 1200 2 MB 4 MB 8 MB For more information on installing additional video memory, refer to the User's Guide supplied with your PC. MPEG is a standard for the transmission of video data. A cannot be ordered from HP. Contact your dealer for more information about this accessory. English 41 - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 48
Millennium Video Adapter supports video refresh rates of up to 200 Hz for flicker free displays. The 200 Hz refresh rate supported by the MGA 1024 1600 ! 1200 Maximum refresh rate 200 Hz 200 Hz 120 Hz 120 Hz 110 Hz 85 Hz Refer to your PC's User's Guide for more information on available video - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 49
1 Your PC's Performance Features Your PC's Audio Resources Your PC's Audio Capabilities FM Synthesis Your PC's Audio Resources Your PC provides stereo SoundBlaster™ 16 audio capability integrated on the system board. The audio subsystem provides a number of connections for use with external - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 50
1 Your PC's Performance Features HP PCI Integrated 10/100BT LAN Interface HP PCI Integrated 10/100BT LAN Interface The Drivers are supplied with your system that will enable you to use the network adapter with any type of network for all supported operating systems. For further information on the HP - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 51
integrated 10/100VG LAN interface requires no hardware configuration. Drivers are supplied with your PC that will enable you to use the network adapter with any type of network for all supported operating systems. For further information on the HP PCI integrated 10/100VG LAN interface, refer to the - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 52
(page 4) Advantages of dual processor configurations (page 7) Matching memory capacity to your requirements (page 15) Benefits of 32-bit applications video performance (page 37) Your PC's audio resources (page 43) HP PCI Integrated 10/100BT LAN Interface (page 45) Adjusting Your PC's Setup - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 53
2 Technical Reference This chapter describes the hardware architecture of your HP Vectra PC and explains how the latest advances in component technology have been harnessed to bring extra power to your desktop application. - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 54
Architectural Overview Bus architecture Bridges Architectural Overview Your HP Vectra XU PC is based on a three-bus architecture are: • The (processor's) local bus, which connects the Pentium™ Pro processor with main memory. This bus operates at 60 or 66 MHz (depending on your processor) and is 64 - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 55
2 Technical Reference Architectural Overview Pentium Pro Processor Second Pentium Pro Processor Memory Controller Main Memory Processor's Local Bus Local to PCI Bridge Integrated SCSI Controller Integrated IDE Controller Millennium Video Adapter 10/100 LAN Interface PCI to ISA Bridge PCI - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 56
Pentium Pro processor. If you are using an operating system that supports the Intel Multiprocessor Specification (MPS), you can improve your PC and a 36-bit address bus. It integrates two 8 KB level-one cache memories (one for instructions, one for data) and a 256 KB level-two cache. Internally it - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 57
called micro-ops. These micro-ops are then executed through the Pentium Pro's pipelines. The micro-ops are much simpler to handle than x86 instructions, and allow the Pentium Pro processor more flexibility in the way it executes them. The Pentium Pro can reorder the micro-ops within its pipelines - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 58
a branch prediction unit that can identify program branches and load their instructions into the level-one instruction cache memory. However, unlike the Pentium, the Pentium Pro is also able to execute these instructions in case they are needed. This feature is called speculative execution, and - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 59
2 Technical Reference The Intel Pentium Pro Processor Integrated Cache Memory Cache memories are used by processors to accelerate access times for frequently used data and instructions. A cache is located between the processor and main memory, and stores copies of the last data read or written by - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 60
closer to the pipelines than the level-two cache. The caches are hierarchical, so that any data or instructions stored in level-one cache memories will also be stored in the level-two cache memory. Level-One Caches The Pentium Pro's two 8 KB level-one caches are similar to the level-one caches - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 61
clock speed of the processor. Level-two cache bus Level-two cache Processor core Local bus Cache Coherency One important implication of using cache memories is that duplicate copies of data exist in different parts of your PC. With duplicate copies of the same data, a mechanism must be used - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 62
The MESI protocol defines the status of data in the cache using four states: Ì Modified - the data is valid, but different to that in memory (the data in memory is invalid) Ì Exclusive - the data is valid and contained in one processor cache only Ì Shared - the data is valid and copies are stored - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 63
make better use of its local bus. To use the transactional protocol, the Pentium Pro processor requires support from other devices on the local bus, such as the memory controller. If this support is not available, the Pentium Pro will use the simple protocol, used by previous generation x86 family - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 64
MB, 32 MB and 64 MB. The maximum memory capacity (512 MB) is obtained by installing eight 64 MB DIMM modules. The DIMM modules used by your HP Vectra XU PC use a 5 volt power source. DIMM modules that use a 3.3 volt power source are not supported and must not be installed. Each DIMM module stores - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 65
data bus is 64 bits wide. All data written to or read from the memory is transferred on this bus. The memory modules are accessed by the memory controller through two, parallel 64-bit data paths. The memory controller connects these two 64-bit data paths with the processor's bus by interleaving - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 66
parity bit is set to 0, while if the total is an odd number this will be 1. Parity was generated by the PC's memory controller when writing data to memory and this parity would be checked when subsequently reading that data. Any difference between the parity written and that read indicates that one - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 67
Technical Reference Main Memory Memory Upgrade Path The memory configuration of your HP Vectra XU PC is very flexible. Your PC's memory capacity can be increased by installing pairs of memory modules of 16 MB, 32 MB or 64 MB in any memory bank in any order. The total memory capacities available are - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 68
4 - 64 MB 128 MB - 128 MB - - 64 MB 128 MB - 128 MB - - 128 MB - - - 64 MB 128 MB - 128 MB - - 128 MB - - - 128 MB Total Memory Capacity 64 MB 128 MB 192 MB 256 MB 320 MB 256 MB 384 MB 160 MB 288 MB 448 MB 128 MB 256 MB - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 69
the HP Vectra XU PC are summarized in the following tables. Type Clock speeds Architecture Level-one cache memory Level-two cache memory Local Bus Dual processor support Type Data integrity Available capacities Memory Controller Memory Performance Processors Intel Pentium Pro 150 MHz, 180 MHz, 200 - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 70
Integrated SCSI controller Integrated IDE controller Millennium Video Adapter (accessory board) HP 10/100VG LAN interface (accessory board) ISA Bus 8.75 MHz to 20 MB/s (Ultra SCSI) IDE Channels Two fast IDE channels supporting split-mode timings Up to four IDE mass storage devices (two per channel - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 71
Description Video memory Supported resolutions Displayable colors Refresh rates Description ! 600 1024 ! 768 1152 ! 882 1280 ! 1024 1600 ! 1200 16.7 million (true-color) Up to 200 Hz Audio Subsystem Integrated SoundBlaster™ 16 compliant 16-bit and 8-bit at frequencies from 5 KHz to 44.1 KHz FM- - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 72
Protocol Data transfer rates Description Protocol Data transfer rates HP 10/100BT LAN Interface HP DeskDirect 10/100TX adapter installed on PCI bus 100BASE-TX Fast Ethernet standard 10 Mbit/s (IEEE 802.3) 100 Mbit/s (IEEE 802.3u) HP 10/100VG LAN Interface 10Base-T/100VG AnyLAN interface installed - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 73
Video BIOS Data Area Available for accessory board BIOS Available Used by PC operating systems for device drivers BIOS Area Extended Memory Used by software applications DMA Channels Available Available if not used by parallel port or audio subsystem Flexible disk drive controller Available if - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 74
2 Technical Reference Technical Characteristics Address (hexadecimal) 170h - 177h 1F0h - 1F7h 220h - 22Fh 278h - 27Fh 2E8h - 2EFh 2F8h - 2FFh 300h - 301h 330h - 331h 376h 377h 378h - 37Fh 388h - 38Bh 3E8h - 3EFh 3F0h - 3F5h 3F6h 3F7h 3F8h - 3FFh IRQ 0 IRQ 1 IRQ 2 IRQ 3 IRQ 4 IRQ 5 IRQ 6 IRQ 7 IRQ 8 - HP Vectra XU 6/XXX | HP Vectra XU - Guide to Optimizing Performance, Not Orderab - Page 75
HP Vectra XU
Guide to Optimizing
Performance