System Board Chips - NEC POWERMATE P - SERVICE MANUAL 1995 Service And Reference Manual

1-4 Technical Information
n
external connectors for connecting the following external devices:
VGA-compatible monitor (standard, super, high-resolution VGA)
personal system/2 (PS/2
PS/2-style keyboard
bidirectional Enhanced Parallel Port (EPP) and enhanced capabilities port
(ECP) are supported for a parallel printer
serial devices through two buffered 16C550 UART serial ports, each
supporting transfer rates of up to 19.2 KB per second
multimedia speakers, microphone, and headphone connectors (multimedia
configurations only)
n
MIDI/joystick connector on the system board for installation of an optional
MIDI/joystick kit
n
Audio Wave upgrade connector on the system board for installation of an optional
Wave upgrade.
Table 1-1 lists the major chips on the system board. See Appendix A, "Connector Pin
Assignments", for a list of the system board connectors. See Appendix B, "System Board
Switches", for a description of board switches.
Chip
Pentium Chip
Intel Triton 82430FX PCI/ISA Chip
Set
82437FX
82438FX
824371FB
National Semiconductor PC87306
S3 Trio 64V+
®
)-style mouse
Table 1-1 System Board Chips
Description
120/60-MHz Intel Pentium processor
133/66-MHz Intel Pentium processor
System controller
Data path unit
PCI ISA/IDE accelerator bridge chip
Super I/O controller
NS16C550 UARTS
supports multimode parallel port
supports industry-standard floppy controller
integrated, battery-backed real-time clock
and CMOS RAM
integrated 8042 keyboard controller
and AMI megakey keyboard/mouse
controller code
PCI GUI graphics controller