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XFX 7870 Crossfire PSU Question

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September 8, 2012 4:39:24 AM

Hello guys I have a question about how many watts will I need to run this setup I got here. I want to do crossfire with 2 XFX 7870's.

GPU: 2X XFX 7870 GHz Edition 2GB
MOBO: ASRock H77 Pro4
HDD: Western Digital Caviar Blue 500 GB SATA III 7200 RPM
CPU: Intel Core i5 3550
RAM: Corsair XMS3 8GB (2 x 4GB) 1333MHz DDR3
SSD: OCZ Vertex Plus R2 60GB SSD
OPTICAL DRIVE: SONY Black 18X DVD-ROM

I am on a budget so I can't get like a $200 1000 Watt PSU or anything.

More about : xfx 7870 crossfire psu question

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September 8, 2012 4:54:28 AM

so what is your budget? you could easily get away with a 750watt for two 7870s their tdp is around 175watts....I have been running 2 gtx 285's (tdp 205watts) and a power hungry first gen i7 at 4ghz for like 3 years now on a solid PCP&C 750watt unit.....I am partial to PCP&C I know their later models havent been the best but here is one from them for cheap
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
$70 after Rebate and Promo Code and shipped

or
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
$86 shipped after rebate
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September 8, 2012 4:56:01 AM

drums101 said:
so what is your budget? you could easily get away with a 750watt for two 7870s their tdp is around 175watts....I have been running 2 gtx 285's (tdp 205watts) and a power hungry first gen i7 at 4ghz for like 3 years now on a solid PCP&C 750watt unit.....I am partial to PCP&C I know their later models havent been the best but here is one from them for cheap
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
$70 after Rebate and Promo Code and shipped

or
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
$86 shipped after rebate



My budget is about $60-$90 Thanks for the reply btw.
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September 8, 2012 5:00:46 AM

ok well both those PSU's fit into your budget...you prolly wont want to get anything cheaper than that...the PSU is the only component in a computer that can take other components with it so I wouldn't skimp on it.....both of the PSU's I linked to are great reliable PSU's I would have no problem putting either in my rig...if I had to choose I would get the PCP&C one bc I have had great luck with that brand bought a PSU in 2008 and its still powering my power hungry rig to this day without incident.
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September 8, 2012 5:12:50 AM

^^Good suggestion I like that PSU too...found it on newegg for $5 less and you dont have to pay taxes or shipping hehe :) 
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September 8, 2012 5:15:28 AM

drums101 said:
^^Good suggestion I like that PSU too...found it on newegg for $5 less and you dont have to pay taxes or shipping hehe :) 
lol just noticed and it depends where OP lives in Ca. not tax or shipping at tigerdirect at newegg there is tax and shipping
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September 8, 2012 5:16:11 AM

Best answer selected by TRoJAN1107.
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September 8, 2012 5:19:06 AM

drums101 said:
ok well both those PSU's fit into your budget...you prolly wont want to get anything cheaper than that...the PSU is the only component in a computer that can take other components with it so I wouldn't skimp on it.....both of the PSU's I linked to are great reliable PSU's I would have no problem putting either in my rig...if I had to choose I would get the PCP&C one bc I have had great luck with that brand bought a PSU in 2008 and its still powering my power hungry rig to this day without incident.


No it's not like I don't like the one that you gave me I am actually just waiting now for tommorow to order. Yes, I know you can't be cheap on the PSU which I'm not trying to at all. Thanks for all the suggestions. I think I'm gonna go with your 750 watt one.
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September 8, 2012 5:19:58 AM

really? newegg charges taxes and shipping if you live in CA? lol thats the same for tigerdirect I live near chicago and they charge me up the ass in taxes and shipping even though there is a store like 45mins from my house lol

and to the OP I didnt take it that way. I was just trying to convince you to go with the more "expensive" units... I was not insulted in anyway lol
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September 8, 2012 5:27:28 AM

drums101 said:
really? newegg charges taxes and shipping if you live in CA? lol thats the same for tigerdirect I live near chicago and they charge me up the ass in taxes and shipping even though there is a store like 45mins from my house lol

and to the OP I didnt take it that way. I was just trying to convince you to go with the more "expensive" units... I was not insulted in anyway lol
Yeah newegg charge me tax and shipping i live in city Perris state California tigerdirect doesn't though
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September 8, 2012 5:59:33 AM

thats funny lol...I guess they like to screw over the people in their home state...that sucks...I am at the better end of the deal though lol I would rather order from newegg anyways.
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September 8, 2012 6:09:39 AM

which one newegg? its prolly bc you dont live in california?
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September 8, 2012 6:09:55 AM

drums101 said:
really? newegg charges taxes and shipping if you live in CA? lol thats the same for tigerdirect I live near chicago and they charge me up the ass in taxes and shipping even though there is a store like 45mins from my house lol

and to the OP I didnt take it that way. I was just trying to convince you to go with the more "expensive" units... I was not insulted in anyway lol


Lol what?!?! It says FREE SHIPPING for me.
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September 8, 2012 6:13:01 AM

drums101 said:
which one newegg? its prolly bc you dont live in california?
has to be that otherwise newegg has some explaining to do :lol: 
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September 8, 2012 6:19:59 AM

yea lol maybe newegg just doesnt like you cyco...lol
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September 8, 2012 6:39:16 AM

drums101 said:
which one newegg? its prolly bc you dont live in california?


I live in Oregon and yeah newegg.
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September 8, 2012 6:40:03 AM

yea that makes sense then I get free shipping too to illinois
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September 8, 2012 6:40:09 AM

drums101 said:
yea lol maybe newegg just doesnt like you cyco...lol
:na: 
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September 8, 2012 8:53:32 AM

This topic has been closed by Mousemonkey
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