Troubleshooting guide

Introduction 1-3
 A 64-bit accelerated graphics port (AGP) video subsystem, which includes the ATI
3D Rage Pro super video graphics array (SVGA) video controller. On the Dell
OptiPlex GX1, this video subsystem contains 4 MB (upgradable to 8 MB) of syn-
chronous graphics random-access memory (SGRAM) video memory; the Dell
OptiPlex GX1p comes with 8 MB of SGRAM video memory. Maximum resolu-
tions are 1600 x 1200 with 65,536 colors noninterlaced and 1280 x 1024 and
1024 x 768 with true-colors noninterlaced. In 800 x 600 and 640 x 480 resolu-
tions, 16.7 million colors are available for true-color graphics using a 32-bits per
pixel (bpp) format. True-color provides higher performance, but uses more graph-
ics memory. Table 1-1 lists the video memory requirements for the Microsoft
Windows
®
95, WIndows 98, and Windows NT 4.0 operating systems.
2X AGP provides a dedicated bus from the video subsystem to the system chip
set. AGP-based video subsystems have two significant performance advantages
over PCI-based video subsystems:
— The AGP bus reduces bandwidth requirements of the PCI bus, improving
overall system performance.
— The AGP bus allows a 3D video subsystem to execute directly from main
memory.
 A diskette/tape drive interface, which supports a 3.5-inch diskette drive and,
optionally, a second diskette drive or tape drive.
 Enhanced integrated drive electronics (EIDE) support. The primary and secondary
interface are both located on the PCI bus to provide faster data throughput. Each
interface supports high-capacity EIDE drives, as well as devices such as ATA 33
hard-disk drives, EIDE CD-ROM drives, and EIDE tape drives.
 Two high-performance serial ports and one bidirectional parallel port for connect-
ing external devices. The parallel port is fully Enhanced Capabilities Port
(ECP)-compliant.
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640 x 480 True-color
(32 bpp)
85 Hz 4 MB
800 x 600 True-color
(32 bpp)
85 Hz 4 MB
1024 x 768 True-color
(32 bpp)
85 Hz 4 MB
1280 x 1024 True-color
(32 bpp)
75 Hz 8 MB
1600 x 1200 65,536 colors
(16 bpp)
75 Hz 8 MB