Server power consumption help

[CAKEwasTRUE]

(Don't know where to put this sorry mods)

 

So i have a home server i built that backs up some other computers in the house and keeps movies music and pictures stored

 

however it also manages our battery backup systems and keeps the firewall,modem, AT&T Microcell for our cell phones, Vonage for home phone, and switches running when we loose power (VERY Common in Florida) 

 

but i only get about 30-35Mins on battery back up and power this summer can go out for almost an hour and a half before the local utility even attempts to fix it (High winds and such)

 

Now without the server running i get 1hr30m to 1hr45m of backup

 

 

Server specs (random parts)

 

Pentium D 945 ~@3.4GHz

HP Workstation MB LGA775

8800 GTS 512MB (no onboard)

4GB DDR2 RAM @ 800MHz

160GB Segate Boot Drive

500GB WD Blue Storage

1TB WD Green Backup

650W Cooler master GX PSU

 

Now i have a Pentium D 2.8GHz, even a P4 somewhere that i think is 2.8 that i can put in to help with consumption, and a lower wattage GPU,

 

maybe a lower psu?

 

 

 

 

 

Any other ideas?

[CAKEwasTRUE]

http://www.extreme.outervision.com/psucalculatorlite.jsp

 

I have found this to be a very valuable tool. Just plug in the required hardware and click the 'calculate' button.

 its says around 289Watt, should i buy a 350 or 400Watt ?

[CAKEwasTRUE]

I would suggest that if you are worried about power consumption getting a power supply that is enough (350 - 450 watt) and then looking at the efficiency. Most power supplies are most efficient at or around 50% power consumption. Look into a 'gold' power supply that fills your needs. Going too large will keep the power supply from reaching its full potential. Going too small will have the same result.

 

 

http://www.newegg.com/Product/Product.aspx?Item=N82E16817182066

 

Rosewill Capstone power supplies are very highly rated. This one is right at about $60 dollars USD.

 

alright thanks