System Board - NEC PowerMate V486 Series Service Manual

Figure Section 1-4 Minitower Storage Devices and Controls

SYSTEM BOARD

The system boards are similar, differing only in the processor. The system board contains a
Flash ROM which is upgradeable through the BIOS Update utility (see Section 2).
See Section 2, Setup and Operation, for a description of the system board's jumpers. See
Appendix A, Connector Pin Assignments, for a list of the system board connectors.
Key features of the system board are listed below.
n
processor
PowerMate V466 – Intel486DX2™-66
PowerMate V4100 – Intel486DX4™-100
n
clock rate
PowerMate V466 – 66 megahertz (MHz) internal, 33 MHz external
PowerMate V4100 – 100 MHz internal, 33 MHz external
n
support for Intel OverDrive™ processor upgrades
Technical Information 1-3