1-6 Technical Information
SYSTEM BOARD
The system board includes the following features:
Intel NX440LX chipset used for AGP, PCI/ISA, memory, and peripheral control
FDC37C667 Ultra I/O controller (integrates standard PC I/O functions: two serial
ports, one EPP/ECP-capable parallel port, floppy disk interface, real time clock,
and keyboard and mouse controller; support for USB interface)
Three dual in-line memory module (DIMM) sockets with support for up to
384 MB of SDRAM using DIMMs
PTL BIOS in a flash memory device supporting system setup and PCI auto-
configuration
Expansion slots for add-in boards
One dedicated PCI slot
One dedicated ISA slot
One “combination” slot for either a PCI or an ISA add-in board
One 1.44-MB, 3.5-inch high-density diskette drive connector
PS/2
®
-style keyboard and mouse connectors
32-KB internal dual write-back cache integrated on the MMX processor
Pipelined 32-bit addressing
64-bit data
From 32 MB to 384 MB SDRAM upgradeable with 16-MB, 32-MB, 64-MB or
128-MB increments through DIMM sockets on system board (64-MB and
128-MB as available)
512-KB write-back secondary cache memory
System Setup program built into the BIOS
2-Mb Flash ROM for fast economical BIOS upgrades
PCI local bus for fast data transfer
National Heceta LM79 chip for monitoring voltage, temperature, and security
(NEC MagicEye™ technology)
Integrated sound (OPL-SA3 audio system)
