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Power supplies, System cooling – NEC MH4500 User Manual

Page 12

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1-4 System Overview

Several major system component locations are shown in the following figure
and briefly described in the following paragraphs.

A.

Fans (8)

E.

System Board

B.

SCSI Backplane

F.

Expansion Board Connectors

C.

Removable Media Device Bays (3)

G.

Memory Module Connector

D.

S.E.C. Processor Bays (4)

System Chassis

Power Supplies

Two 400 watt auto-voltage-sensing power supplies provide system power. Each
operates at 115 or 230 Vac at an operating frequency of 50/60 Hz. Both supplies
are designed to operate together during system operation. Both power supplies
comply with existing emissions standards and provide sufficient power for a
fully loaded system configuration. An optional third power supply can be added
to the system as a backup unit.

System Cooling

The chassis houses eight fans for cooling and airflow.

Note:

To maintain proper system cooling and air flow,

the chassis access cover must be installed whenever the
system is running.

A

B

C

D

E

F

G