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Upgrading to FX-8320 should I replace my PSU?

post #1 of 10
Thread Starter 
So my rig is in my sig. I am upgrading to a 8320 and will OC the crap out of it. I am upgrading to be able to better stream/ record Crysis 3 MP gameplay.

I love this 6300 but I think as taxing as C3 is that it will be best to upgrade. So I am aiming for 5.0GHz or as close as possible. Considering I already am SLI GTX 660's and they are unlocked and overclocked to 1250 each, will this PSU in my sig be enough? I used a PSU calculator and its very close already.

Let me know what you think and recomendations are welcome new PSU budget is no more than $100.
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post #2 of 10
You should be just fine. smile.gif
post #3 of 10
Quote:
Originally Posted by Dimaggio1103 View Post

So my rig is in my sig. I am upgrading to a 8320 and will OC the crap out of it. I am upgrading to be able to better stream/ record Crysis 3 MP gameplay.

I love this 6300 but I think as taxing as C3 is that it will be best to upgrade. So I am aiming for 5.0GHz or as close as possible. Considering I already am SLI GTX 660's and they are unlocked and overclocked to 1250 each, will this PSU in my sig be enough? I used a PSU calculator and its very close already.

Let me know what you think and recomendations are welcome new PSU budget is no more than $100.

With 2 660 you will be have plenty of headroom for that 6300, if you were Overvolting 2 7950 I'd recommend a upgrade but according to techpowerup single 660 pulls 124 W in gaming, even if you OC them both with the power efficient Kepler you can't get much higher in power consumption. thus you will be more than fine.
Edited by sherlock - 2/17/13 at 4:04pm
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post #4 of 10
Thread Starter 
Yes but even adding a 8320 OCed to around 5GHz will still be fine?

If that is the consensus I will head your advice and save my self some cash. biggrin.gif

I know that with a 8320 and SLI 660, among other peripherals my pull is around 620w but I just did not know how good this PSU is to maintain that on its rails.
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post #5 of 10
Quote:
Originally Posted by Dimaggio1103 View Post

Yes but even adding a 8320 OCed to around 5GHz will still be fine?

If that is the consensus I will head your advice and save my self some cash. biggrin.gif

I know that with a 8320 and SLI 660, among other peripherals my pull is around 620w but I just did not know how good this PSU is to maintain that on its rails.



That's Anandtech's Piledriver OC chart, FX-6300 power draw at 5.0Ghz would be somewhere in the middle of those two orange bar, 250W seems like a overestimate and that added to two of your 660 OCed pulling 130W each(another overestimate) is only 510W, you are running on a 630W PSU so I think you are golden.

Here is Tom's Hardware's 660 review, their test system is a 3960X 4.2Ghz @1.4V and 660 SLi draws 443 W

Edited by sherlock - 2/17/13 at 8:48pm
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post #6 of 10
Thread Starter 
+Rep to you sherlock for doing the footwork.

On thing im confused is it says one 660 is around 300w ,but sli is only 430?

Also, if im buying a 8350 for 5GHz thats 295w plus my GTX 660 SLI 443w thats a wopping 738w so then I do need a new PSU?
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post #7 of 10
Quote:
Originally Posted by Dimaggio1103 View Post

+Rep to you sherlock for doing the footwork.

On thing im confused is it says one 660 is around 300w ,but sli is only 430?

Also, if im buying a 8350 for 5GHz thats 295w plus my GTX 660 SLI 443w thats a wopping 738w so then I do need a new PSU?

That chart(Tom's) reads "Peak Total System Draw", 660 in SLI draws 113W more than single 660, makes perfect sense.

Unless your 5 Ghz FX-6300 draws more juice than a 4.2Ghz 3960X @1.4V I doubt your whole system will draw more than the 443 W shown on the chart.
Edited by sherlock - 2/17/13 at 10:51pm
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post #8 of 10
Thread Starter 
Quote:
Originally Posted by sherlock View Post

That chart(Tom's) reads "Peak Total System Draw", 660 in SLI draws 113W more than single 660, makes perfect sense.

Unless your 5 Ghz FX-6300 draws more juice than a 4.2Ghz 3960X @1.4V I doubt your whole system will draw more than the 443 W shown on the chart.

Im not talking about a FX 6300 I said Im upgrading to a FX-8350 at 5GHZ, thats why im wondering.
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post #9 of 10
Quote:
Originally Posted by Dimaggio1103 View Post

Im not talking about a FX 6300 I said Im upgrading to a FX-8350 at 5GHZ, thats why im wondering.

that 1.4V 4.2 Ghz 3960X + 2 660 in SLI system pulls 433W, so subtract 211 W(underestimate, it probably pulls more than the stock 3960X shown here)



then add 311 W for a FX -8350 at 5Ghz(overestimate from this from the 4.8ghz result)


and your overall system consumption with FX-8350+ 660 SLI is probably some where around 543W, you are still fine with that 630W PSU.
Edited by sherlock - 2/18/13 at 12:41pm
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post #10 of 10
Thread Starter 
+rep again

i was gonna order a 750w, but i will hold off. thanks buddy.
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