Power Button; Suspend Button; Lamps; Power Supply - NEC PowerMate V486 Series Service Manual

Power Button

The power button controls power to the system unit. Press the button once to turn on the
power and again to turn off the power.

Suspend Button

The suspend button initiates a power-saving mode of operation. When pressed during nor-
mal operation, the system goes into a Suspend or "Sleep" mode. Suspend mode saves data
and system status and shuts off all power-consuming devices, such as the monitor and hard
disk drive. An amber system unit power lamp indicates that the system is in Suspend mode.
See Section 2, Setup and Operation for information about using power-saving modes.

Lamps

The front panel contains two lamps, power and disk.
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The power lamp (green) indicates that the system unit is powered on. It also pro-
vides the status of system operation.
A green lamp indicates that the system is in a Full Power On mode of operation.
An amber lamp indicates that the system is in Suspend mode with full power re-
duction.
See Section 2, Setup and Operation for information about using power-saving
modes.
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The disk lamp (green) indicates when a hard disk is performing a read or write
operation.

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. Two connectors connect
the power supply to the system board. A fan inside the power supply provides proper ven-
tilation for the system. The power supply in the desktop supplies 145W of power. The
minitower power supply provides 200W. Power requirements and specifications for both
power supplies are provided in Appendix C.

DISKETTE DRIVE

Up to two diskette drives are supported in the system. The system ships with a connector
cable for a single drive. A replacement cable with two connectors is required when install-
ing a second floppy device. The system refers to the diskette drives as A and B. Drive A is
for the first drive, B is for a second optional diskette drive. The diskette drive cable plugs
directly into the system board. Typically both diskette drive are terminated. See Section 3,
Options, for installing an optional 5 1/4-inch diskette drive.
Technical Information 1-17