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Do I need a new PSU for 7870 CF?

post #1 of 8
12/3/12 at 10:21pm
Thread Starter 
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371015&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=4176827&SID=zgq69hzxdwu2

Hello,
this is the one i have been currently using for the past two years... I've looked everywhere online that a "good 650w psu" will be good enough to power 2 7870's at once.
I currently have a 4.5ghz oc'd i5 2500k, and a single 7870.. Definitely want to move up to crossfire...
Also,
I know this PSU only has two pci-e connectors, and i know people don't recommend using the molex connectors, but why?

Don't have much money that I could be spending around.... so It'll be great if I can still use this PSU. What are your thoughts?
Nick
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Nick
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post #2 of 8
12/3/12 at 10:24pm
No thats more than enough. Enjoy it!
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post #3 of 8
12/3/12 at 10:24pm
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Quote:
Originally Posted by dumbkkid View Post

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371015&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=4176827&SID=zgq69hzxdwu2
Hello,
this is the one i have been currently using for the past two years... I've looked everywhere online that a "good 650w psu" will be good enough to power 2 7870's at once.
I currently have a 4.5ghz oc'd i5 2500k, and a single 7870.. Definitely want to move up to crossfire...
Also,
I know this PSU only has two pci-e connectors, and i know people don't recommend using the molex connectors, but why?
Don't have much money that I could be spending around.... so It'll be great if I can still use this PSU. What are your thoughts?

headscratch.gif

You should be fine btw but um...your PSU has 666 reviews devil.gif
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post #4 of 8
12/3/12 at 10:26pm
Thread Starter 
Haha, I can't be spending much money around AFTER my 7870 ;]
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post #5 of 8
12/3/12 at 10:27pm
Thread Starter 
Quote:
Originally Posted by Quesoblanco View Post

No thats more than enough. Enjoy it!

Thanks!

Anyone else has an input? I just want to make 100% sure before I make that decision to even go for another 7870!
Nick
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post #6 of 8
12/3/12 at 10:28pm
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http://www.tweaktown.com/articles/4597/amd_radeon_hd_7870_2gb_reference_video_cards_in_crossfire/index16.html
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post #7 of 8
12/3/12 at 10:28pm
Everybody is going to say the same thing. Grab that 7870 and enjoy awesome performance.thumb.gif
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Intel 320 160gb Maxtor 500gb ASUS DVD Burner H100i 
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post #8 of 8
12/3/12 at 10:31pm
Quote:
Originally Posted by Quesoblanco View Post

Everybody is going to say the same thing. Grab that 7870 and enjoy awesome performance.thumb.gif

Yep!
Use one of the molex adapters on each card also. Just so you have one actual 6-Pin PCI-E on each.
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