Diskette Drive; Hard Disk Drive; Power Supply; Keyboard - NEC POWERMATE P - SERVICE MANUAL 1995 Service And Reference Manual

Technical Information 1-17

DISKETTE DRIVE

Up to two diskette drives are supported in the system. The installed 3 1/2-inch diskette
drive is connected by a single ribbon cable with two drive connectors. The diskette drive
cable plugs directly into the system board. Typically, both diskette drives are terminated.
Connector locations are given in Appendix A.

HARD DISK DRIVE

Up to four IDE hard drives are supported in the system. The system board has two
IDE/PCI interface connectors (primary and secondary) for connecting storage devices such
as hard disk drives. Each connector supports up to two IDE devices.
All systems ship with one internal 3 1/2-inch hard disk (1-inch high, thin-height) installed
behind the front panel at the bottom of the chassis. The three-connector drive cable plugs
into the primary (fast) connector on the system board. An optional second hard drive can be
connected to the cable. Adding a third hard drive to the internal bay requires an optional
two-drive connector. The optional cable plugs into the secondary connector on the system
board. If adding a fourth hard drive (in a 5 1/4-inch accessible slot), it connects to the
unused connector on the optional cable.

POWER SUPPLY

The power supply is mounted inside the system unit. It supplies power to the system board,
option boards, diskette drives, hard disks, keyboard, and mouse. A fan inside the power
supply provides system ventilation. The power supply provides 200 watts. Connector
locations are in Appendix A.

KEYBOARD

The PS/2-style 104 key keyboard is standard equipment for the system. The keyboard
provides a numeric keypad, separate cursor control keys, and 12 function keys, capable of
up to 48 functions. Status lamps on the keyboard indicate: Num (Numeric) Lock, Caps
(Capital) Lock, and Scroll Lock key status. The keyboard's six-pin connector plugs into the
rear of the system.

MOUSE

A PS/2-compatible mouse is standard equipment for the system. The mouse has a self-
cleaning mechanism that prevents a buildup of dust or lint around the mouse ball and
tracking mechanism. The mouse's six-pin connector plugs into the rear of the system.