Dell Dimension XPS 50 Reference Guide - Page 20

Full Plug and Play version 1.2a capability in the system basic input/output system (BIOS) allows you to install both PCI and ISA Plug and Play expansion cards without performing manual configuration tasks. The system BIOS is stored in flash memory, so it can be updated to support future Plug and Play enhancements. NOTE: The Microsoft ® Windows NT ® operating system does not provide ISA Plug and Play support. Therefore, some ISA Plug and Play cards may not work with Windows NT unless you configure them manually. The system board includes the following integrated features: Four full-length 32-bit PCI expansion slots for connecting high-speed PCI devices to the PCI bus-greatly increasing their input/output (I/O) speeds over the speeds attainable using the ISA bus. One shared full-length PCI/ISA expansion slot containing both a PCI and an ISA expansion-card connector, only one of which can be used at any given time. One full-length AGP expansion slot. An integrated diskette drive interface that supports a single diskette drive without the need for a controller card. Two enhanced integrated drive electronics (EIDE) interfaces on the PCI bus that support up to two EIDE devices each. Supported devices include Advanced Technology Attachment (ATA)-33 Ultra direct memory access (DMA) hard-disk drives, CD-ROM drives, Zip drives, and tape drives. NOTES: The ATA-66 controller card supports ATA-66 Ultra DMA hard-disk drives. Inconsistencies in the manufacturing of CD-ROM media may cause some higherspeed CD-ROM drives to vibrate more than others. Such vibration and associated noise do not indicate a defect in the drive or the CD. One serial port and one bidirectional parallel port for connecting external devices. For systems running the Microsoft Windows® 98 Second Edition or Windows 2000 operating system, the two high-performance Universal Serial Bus (USB) ports provide a single connection point for multiple USB-compliant devices. These devices can be connected and disconnected while the system is running. NOTE: If you attach a USB device that was not included in your original system configuration, you may need to install a specific driver for that device to obtain its full functionality. Contact the USB device manufacturer for more information. A PS/2-style keyboard port and a PS/2-compatible mouse port. Dell Dimension XPS Txxx and Txxxr systems are available with and without integrated sound. For systems with integrated sound, a Yamaha 724 DS-1 PCI advanced audio controller with 3D positioning and Direct Sound acceleration provides audio functions compatible with a Sound Blaster Pro expansion card. A musical instrument digital interface (MIDI)/game port provides a connection for a joystick, MIDI keypad, game pad, or other game input device. 1-2 Dell Dimension XPS Txxx and Txxxr Systems Reference and Troubleshooting Guide