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*Advise on power supply for build*

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devilreaverx

Registered
Joined
Dec 1, 2009
Location
Adelaide
I am looking at the following and am need a qoute on the power i need for my new rig i will be purchasing shortly.

Asus P6T SE $269
http://www.overclockersclub.com/reviews/asus_p6t/

i7 920 $389
http://ark.intel.com/Product.aspx?id=37147

Antec Three Hundred $80
http://www.antec.com/Believe_it/product.php?id=MTA4MQ==

Antec Earthwatts 750 $149
http://www.jonnyguru.com/modules.php...Story&reid=163

3 X DDR3 Kingston 1333 $145
http://www.getprice.com.au/Kingston-...--40440767.htm

ATI Asus HD-4890 $229
http://ati.amd.com/products/radeonhd4800/overview-4890.html

Seagate 500GB $64
http://www.seagate.com/ww/v/index.js...00dd04090aRCRD

All prices from MSY.

Budget $1200
$1325 total

Is the 750w overkill?

(I will want to Xfire down the track.)

Thanks for any feedback
 

Grosjambon

Member
Joined
Oct 10, 2009
Location
Montreal - Canada Or @Cegep Maisoneuve
Costy Intel +_+
750W is a little bit overkill :)
Corsair 650w / antec 650w should be just enough but if u are planning to run sli/crossfire u will need a 750w :)
Edit : using a 650w earthwatt (check sig for rig info) Heavy gtx 280 +_+
 

Rich'[ard]

Member
Joined
Apr 28, 2008
Location
Melb, AUS
Costy Intel +_+
750W is a little bit overkill :)
Corsair 650w / antec 650w should be just enough but if u are planning to run sli/crossfire u will need a 750w :)
Edit : using a 650w earthwatt (check sig for rig info) Heavy gtx 280 +_+
yeah prices are like that over here.
very very stupid.

i reckon he's chosen a good PSU - good amount of wattage to have no worries because he's planning to Crossfire.
either go with that or a Corsair HX-650.
dunno if it's available at MSY though, they dont' usually stock Corsair PSUs, but nonetheless.
 

Layback Bear

Member
Joined
Jan 12, 2006
Location
Nothern Ohio
You have done a lot of looking around and that is good. You have picked out some quality products but it all starts with a power supply. IMHO 750 of quality power supply is not over kill. You might be working your power supply about 50% that is good. You do not over clock a power supply you get lots of power supply so you can over clock. Power supplies when worked 80% or more put out voltages that are not constant, (ripples) you will see the effect in video cards first. I'm not rich by any measure but I would not have a problem spending another 20 to 50 $$$ to get all the power I need and might need later.
 

John1975

Helpful Member
Joined
Dec 8, 2001
The system you are looking at is quite similar to the one I built. I expect the 750w is good, but I am not sure if I would go much lower.

Also, the system in the link is pretty basic for testing the video cards.
3.8 out of the 920, rather than 4-4.2 you see now
one drive, although it is a raptor
2gb ram


I agree with Layback Bear, the PSU is not the place to be cutting it close.
 

RoC1909

Member
Joined
Dec 14, 2009
I think 750 is a nice round figure for the components that you want. It also allows a little "wiggle room" for you to upgrade. Though, fire2havoc brings up a good point as well.