# Server Input Power **URL:** \ **Category:** Factual Questions\ **Created:** [May 12, 2011, 5:33pm UTC](https://boards.straightdope.com/t/server-input-power/581676 "2011-05-12T17:33:48Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![enipla](https://avatars.discourse-cdn.com/v4/letter/e/54ee81/32.png) [@enipla](https://boards.straightdope.com/u/enipla)\ **Post date:** [May 12, 2011, 5:33pm UTC](https://boards.straightdope.com/t/server-input-power/581676/1 "2011-05-12T17:33:48Z")
How do I figure out the Rated Input Power for a server. The spec sheet gives it as Rated Input Power 1000/1056/1205 W To figure out the BTU, I need the actual number. [HP DL380 G5](http://h18000.www1.hp.com/products/quickspecs/12558_na/12558_na.HTML) ---
**Author:** ![enipla](https://avatars.discourse-cdn.com/v4/letter/e/54ee81/32.png) [@enipla](https://boards.straightdope.com/u/enipla)\ **Post date:** [May 12, 2011, 5:41pm UTC](https://boards.straightdope.com/t/server-input-power/581676/2 "2011-05-12T17:41:07Z")
Actually I mean Output Power it lists it as - Power Supply Output Power (per power supply) Rated Steady-State Power 800/850/1000 W ---
**Author:** ![enipla](https://avatars.discourse-cdn.com/v4/letter/e/54ee81/32.png) [@enipla](https://boards.straightdope.com/u/enipla)\ **Post date:** [May 12, 2011, 5:55pm UTC](https://boards.straightdope.com/t/server-input-power/581676/3 "2011-05-12T17:55:52Z")
Eh, never mind. Found it. ---
**Author:** ![Aestivalis](https://avatars.discourse-cdn.com/v4/letter/a/d6d6ee/32.png) [@Aestivalis](https://boards.straightdope.com/u/Aestivalis)\ **Post date:** [May 13, 2011, 2:16am UTC](https://boards.straightdope.com/t/server-input-power/581676/4 "2011-05-13T02:16:26Z")
Install their [Power Advisor](http://h18000.www1.hp.com/products/solutions/power/index.html) and calculate the exact power consumption for your config. You can also run a web version. Just remember the important thing is getting cold air into the front of the server and clearing the hot air away from the rear!