CF 6970 power usage

[testier]

Can this PSU take on 2 6970s?
http://ncix.com/products/?sku=59617&vpn=P1750SNLB9&manufacture=XFX&promoid=1315
My system:
MSI P67 G43
i5 2500k (want to oc to 4.2ghz)
5 leds fans
coolmaster212 heatsink
2 x 4Gb DRR3 kingston RAM
1 hardrive(want to add one to two SDD and one more if possible)
1 dvd drive
I also want to have enough power to run 3 to 4 external USB devices
May add one or two external hardrives.
I am kinda new at watt calculating, so can someone give me a solid answer?


Thank you, testier.

Message edited by testier on 02-21-2012 at 07:04:45 PM

 

[vollman1]

That link is a to a joystick

 

[testier]

corrected, sorry.

 

[vollman1]

Check this old thread out; I think it will answer your questions better than I can hehe

http://www.tomshardware.com/forum/309226-28-will-support-6970-xfire-2500k

I would go 850W also.

 

[testier]

So that would be a no? What is the worst case scenario of me not having enough watts to power those cards?

 

[vollman1]

ahh just edited above post.

I would go 850W myself.

This is what will happen if you don't have enough power to the GPU:

http://answers.yahoo.com/question/index?qid=20090720225718AAC6lB7

 

[testier]

Great, more money needed. Well thank you for your time.

 

[vollman1]

Sorry to be the bearer of bad news

If you need help with an 850W psu, just say so. And, list your budget and where you would like to buy from

 

[testier]

Well, my friend recommended me to use a 850w too. I just want the cheapest possible 850w that can run 2 hd 6970s. I dont care about customer service and all. As long as it runs cards and not fragile, I am happy.

 

[vollman1]

be really careful with your PSU choice: going the cheap route could be a hazard for your system. Make sure that you get at least 80+ certified and check reviews of your choice. Or post in the new build or PSU forums here and ask for help.

You really want a good psu that will be stable. Don't just go with the cheapest you can find!

 

[testier]

Thank you.

 

[testier]

Best answer selected by testier.