1-8
Product Description
1.3.6
Graphics Controllers
The purpose of a graphics controller is to generate the text and graphics images for the monitor screen.
The quality of the picture you see depends on the resolution of the monitor and the number of colors
that can be displayed. High resolution graphics with many colors require that the graphics controller
have its own memory system. The computer comes with one of three graphics controllers:
■
The Cirrus Logic 5436 PCI performance graphics controller comes standard with 1 megabyte of
EDO DRAM, which can be upgraded to 2 megabytes of EDO DRAM.
■
The Cirrus Logic 5446 PCI performance graphics controller comes standard with 1 megabyte of
EDO DRAM, which can be upgraded to 2 megabytes of EDO DRAM.
■
The Matrox MGA Millennium graphics controller comes standard with 2 megabytes of Windows
random access memory (WRAM), which can be upgraded to 4 or 8 megabytes of WRAM.
Supported screen resolutions for each of the above controllers are listed in Chapter 8, "Specifications".
1.3.7
IDE Peripheral Interface
The onboard PCI chipset provides a high-speed, 32-bit PCI/IDE interface, which supports the
following:
■
Up to four PCI/IDE hard drives on the PCI bus
■
Enhanced Mode 3 and Mode 4 support
■
Logical block addressing (LBA) of hard drives larger than 528 megabytes
■
Extended cylinder head sector (ECHS) translation modes
■
ATAPI devices (such as CD-ROMs) on both IDE interfaces
1.3.8
System I/O
The onboard I/O controller integrates the functions for the serial and parallel ports, diskette drives, and
the keyboard. This component provides support for the following:
■
Multimode bidirectional parallel port
❏
Standard mode: Centronics-compatible operation
❏
High-speed mode with support for an enhanced capabilities port (ECP) and enhanced parallel
port (EPP)
■
One RS-232C compatible 9-pin serial port
■
One USB Connector (Pentium Pro models only)
■
Integrated real-time clock
■
A 242-byte, battery-backed CMOS RAM
■
Integrated 8042-compatible keyboard controller
■
Industry-standard diskette drive controller that supports:
❏
720-kilobyte and 1.44-megabyte 3.5-inch drives (at 135 tracks per inch)
❏
360-kilobyte and 1.2-megabyte 5.25-inch drives
Содержание Deskpro 2000 Series
Страница 1: ...MAINTENANCE SERVICE GUIDE COMPAQ DESKPRO 2000 SERIES OF PERSONAL COMPUTERS...
Страница 2: ...243064 001 243211 001...
Страница 4: ...CPS...
Страница 30: ...1 18 Product Description 1 5 1 Front Panel Lights and Controls Figure 1 5 Power Switch and Front Panel Lights...
Страница 32: ...1 20 Product Description Figure 1 6 Drive Positions on the Minitower Computer...
Страница 34: ...1 22 Product Description Figure 1 7 Rear Panel Connectors...
Страница 82: ...3 2 Illustrated Parts Catalog 3 1 System Unit Figure 3 2 System Unit Desktop...
Страница 84: ...3 4 Illustrated Parts Catalog Figure 3 3 System Unit Minitower...
Страница 86: ...3 6 Illustrated Parts Catalog 3 2 Mass Storage Devices Figure 3 4 Mass Storage Devices...
Страница 88: ...3 8 Illustrated Parts Catalog 3 3 Cables Figure 3 5 Cables...
Страница 90: ...3 10 Illustrated Parts Catalog 3 4 Standard and Optional Boards Figure 3 6 Standard and Optional Boards...
Страница 96: ...3 16 Illustrated Parts Catalog 3 6 Monitors Figure 3 9 Monitors...
