HP 3rd edition Conclusion, For more information

HP ProLiant servers that support redundant power supplies only allow installation of same-type supplies. A power supply mismatch or an unsupported power supply will result in an error indication as described in Table 4.

Table 4: HP CS power supply compatibility with HP PDS

Condition	System insight	Description
	display indication
Power supply	Power supply LED (all
mismatch detected	supplies) blinking	BIOS ROM will power up power supply #1 and then halt.
during boot	amber
Power supply	Power supply LED	iLO will detect the mismatch and not allow the added power supply to turn
mismatch detected	(added supply only)
		on.
during runtime	blinking amber
Unsupported power	Power supply LED	BIOS ROM will detect an unsupported power supply installation. BIOS ROM
supply detected	(added supply only)	will halt at POST with a failure message and will light the appropriate LED.
during boot	blinking amber	The LED will reset when the unsupported supply has been removed and
		system is restarted.

HP CS power supplies are hot-pluggable/hot-swappable on ProLiant servers under the following conditions:

•The server must already be configured with redundant power supplies.

•The removed and replacement power supplies must be of the same type (same part number).

For all other situations, the ProLiant server should be powered down before a power supply is removed or installed.

Conclusion

The common slot power supply bay allows over 90% of the ProLiant server line to use 80 PLUS-certified power supplies. By using IT equipment that supports common-slot power supplies, IT and facilities administrators can reduce spares inventory costs and space requirements while reducing energy consumption costs and reclaiming data center power capacity.

For more information

Visit the URLs listed below if you need additional information.

Resource description	Web address
HP Power Supplies	http://h18004.www1.hp.com/products/servers/rackandpower/pow
	ersupplies/index.html
HP ProLiant servers	www.hp.com/go/proliant
HP ProLiant Energy Efficient Solutions	http://h71028.www7.hp.com/enterprise/cache/600307-0-0-0-
	121.html
Automated Energy Optimization	http://h20195.www2.hp.com/V2/GetPDF.aspx/4AA3-9650ENW.pdf
HP Power Advisor utility	www.hp.com/go/hppoweradvisor
80 PLUS program	www.80plus.org
HP interactive online compatibility guide	www.hpproliantoptions.com/index.aspx
HP Intelligent Power Discovery (Power Discovery	www.hp.com/go/ipd
Services)

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