NEC Express5800/120Re, User Manual

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2-16 General Description
Power Supply
The SCSI hot-plug hard disk drive model contains one auto-sensing 465-watt power supply at an
operating frequency of 50/60Hz.
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.
NOTE:
The power supplies are not hot-swappable unless there are two
power supplies installed.
The power supply for SATA fixed hard disk drive model is rated for 425 watts of power at an
operating frequency of 50/60Hz.
The power subsystem supports implementation of remote management features including remote
enable that permits power to be activated from a variety of sources.
Peripheral Bays
Your server supports a variety of standard PC AT-compatible peripheral devices. The chassis
includes these peripheral bays:
„
A 3.5-inch front panel bay for mounting the standard 3.5-inch diskette drive (supports 720
KB and 1.44 MB diskette media)
„
A standard CD-ROM drive bay
„
Three hot-swap SCSI hard disk drive bays or two SATA hard disk drive bays for mounting
hard disk drives installed in easily removable drive carriers.
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.
System Cooling
The chassis includes a fan module with five fans for cooling the processor(s), hard drives, and PCI
cards. The fan system is located in the middle of the chassis to pull cooling air through the chassis.
The power supply contains two built-in fans for cooling.
The SCSI hot-plug hard disk drive model can include five optional redundant fans.