System Board; Rear Panel Features - NEC POWERMATE PROFESSIONAL - SERVICE MANUAL 05-1997 Service Manual

1-4 Technical Information

SYSTEM BOARD

The system board includes the following features:
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Intel Pentium II microprocessor running at 233- or 266-MHz (model dependent)
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Intel 82440FX PCI chipset used for PCI/ISA, memory, and peripheral control
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PC87308 Super I/O controller (integrates standard PC I/O functions: two serial
ports, one EPP/ECP-capable parallel port, floppy disk interface, real time clock,
CMOS RAM, keyboard controller, and support for an IrDA-compatible infrared
interface)
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PCI and ISA peripheral connectors on the system board
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Support for up to 256 MB of 60 nanosecond (ns) single in-line memory modules
(SIMMs)
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Intel BIOS in a 2-MB flash memory device supports system setup and PCI auto-
configuration
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Sound Blaster Pro™-compatible Yamaha audio chip
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Expansion slots for up to five add-in boards
Three dedicated PCI slots
Two dedicated ISA-bus slots
One combination slot for either a PCI or an ISA add-in board
Figure 1-2 Rear Panel Features