Pci Hot Plug; Redundant Hot-Plug Power Supplies - Compaq 226824-001 - ProLiant - ML750 Setup And Installation Manual

1-4 Compaq ProLiant ML750 Servers Setup and Installation Guide

PCI Hot Plug

Redundant Hot-Plug Power Supplies

PCI Hot Plug provides the ability to remove, replace, upgrade, and add PCI
expansion boards without powering down the server. Any PCI board can be
placed in a PCI Hot Plug slot. PCI Hot Plug device drivers and operating
system support, however, are required to enable PCI Hot Plug.
The PCI Hot Plug button allows for PCI Hot Plug access directly at each PCI
slot. A PCI Hot Plug button is located above each PCI slot, providing PCI
Hot Plug control directly at the server without the use of the PCI Hot Plug
utility software.
NOTE: To optimize the management features of the Remote Insight Board/PCI, it is not
hot-pluggable.
For more information about PCI Hot Plug, refer to the server Documentation
CD.
NOTE: Depending on the server configuration, three power supplies may be required for
N+1 redundancy.
Supports 1150/500-W hot-plug redundant power supplies.


WARNING: Hot-plug power supplies are not designed to be installed with AC
current connected to the power supply. To prevent personal injury or damage to
the equipment, be sure to disconnect the power supply from AC current prior to
its removal or installation.
Power supplies are load-balancing and have microcontroller monitoring


for advanced health and configuration management.
Supports up to three power supplies. Depending upon the system load


configuration, more than one power supply may be required to power
the system. See the section, "Power Requirements," in Chapter 2 to
determine power supply requirements.
A power supply security bar and a padlock provide additional security.