Power Supply Units - Compaq ProLiant DL580 Setup And Installation Manual

Power Supply Units

Compaq ProLiant DL580 servers ship standard with at least one hot-plug
power supply (450 w at 220/110V) and support for an optional, redundant
hot-plug power supply to provide system-wide backup power and the ability to
balance power demands throughout the system.
Advanced power capabilities include:
I
Automatic line-sensing capability that replaces manual voltage selection
I
Power-down management feature that moves the system into Standby
mode cleanly and quickly
NOTE: System power utilities are provided on the Compaq Support Software for
Microsoft Windows NT 4.0 diskettes (NTSSD). For more detailed information, refer to the
NTREADME.HLP file on Diskette 1. Future operating system support is planned for later
release.
System Power Supply Management Guidelines
Consider the following energy usage comparisons when you configure your
ProLiant DL580 server. Different configurations have specific benefits and
shortcomings including:
I
3.3V-powered PCI expansion boards versus 512 MB of ECC SDRAM
memory
Each additional 512 MB of memory draws approximately as much
current as a single PCI board.
I
5V-powered PCI expansion boards versus standard SCSI hard drive
One PCI card draws as much current as at least two hard drives.
I
5V-powered PCI expansion boards versus PCI network interface
controller (NIC)
In general, PCI array controllers draw more current than PCI NICs.
NOTE: The following guidelines are general. Use the Power Supply Viewer Utility and
option documentation to obtain the most accurate power capacity and assessment of
power margin.
Server Features 1-9