NEC Express 5800 120Eg, User Manual

Page: 39 / 292

120Eg User Guide - System Overview
1 - 17
System Functions
The following subsections describe select system functions.
Power Supply
Non hot swap power supply configuration
The system contains one auto-sensing 600-watt power supply at an operating frequency
of 50/60 Hz.
The power supply is designed to comply with existing emission standards and provide
sufficient power for a fully loaded system configuration.
Hot swap power supply configuration
The system contains one auto-sensing 570-watt hot swap power supply at an operating
frequency of 50/60 Hz.
A second optional power supply may be added as part of a fault-tolerant hot-swap
design. With two power supplies installed, in the unlikely event of a power supply
failure, the load is transferred to the remaining power supply without interruption to
normal operation. In this case, the faulty power supply can be replaced without
powering down the system.
Peripheral Bays
The system supports a variety of standard PC AT-compatible peripheral devices. The
chassis includes these peripheral bays:
■
A 3.5-inch front panel bay for installing the standard 3.5-inch floppy disk drive
(supports 720KB and 1.44MB floppy disk media)
■
Three 5.25-inch device bays for installing half-height or full-height 5.25-inch
peripheral devices such as an optional tape drives.
Note:
The server can include a maximum of two additional
devices: two half-height devices, or one half-height device and
one full-height device..
■
A front panel bay for mounting the standard CD-ROM drive.
■
Your system may include hot-swap SCSI hard disk drive bays for mounting up to
six hot-swap disk drives in easily removable drive carriers. Each drive carrier has
one lamp to indicate the fault or other status: power-on (green lamp), activity
(flashing green lamp), fault (yellow lamp).
Note:
The hot-swap SCSI hard disk drive bays contain a
hot-swap back plane that require an 80-pin single connector
attachment (SCA) connector on the drives that you install.