Processor; System Board Chips - NEC POWERMATE V Service Manual

T
MIDI/joystick connector on the system board for installation of an optional
MIDI/joystick kit
T
Audio Wave upgrade connector on the system board for installation of an optional
Wave upgrade.
Table 1-3 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
Jumpers, for a description of board jumpers.
Chip
P54C (CPGA)
Intel Triton 82430FX PCI/ISA Chip Set
82437FX
82438FX
824371FB
SMC FDC37C935 or 665
Alliance ProMotion-6422
28F001
Dallas DS12887/MC146818
or
Toshiba CR2032 Coin Cell Battery
OPTi 82C930 Sound Chip
(multimedia systems only)
Yamaha OPL3-L Synthesizer Chip
(multimedia systems only)

Processor

The PowerMate V series of computers use the following Pentium processors:
T
PowerMate V75 — 75-MHz processor with internal speed of 75 MHz and
external speed of 50 MHz.
T
PowerMate V90 — 90-MHz processor with internal speed of 90 MHz and
external speed of 60 MHz
Table 1-3 System Board Chips
Description
75/50-MHz Intel Pentium processor
90/60-MHz Intel Pentium processor
100/66-MHz Intel Pentium processor
133/66-MHz Intel Pentium processor
System controller
Data path unit
PCI ISA/IDE accelerator bridge chip
Integrated Plug and Play Ultra I/O controller
PCI GUI graphics controller
128k x 8 Flash ROM
Real-time clock/battery (SMC 665)
3 Volt Lithium CMOS battery (SMC 935)
Onboard PC sound system
Frequency modulated synthesizer
Technical Information
or
1-7