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Hey guys, stupid question...

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#1
Sooo, first time, long time. I hope this is the right forum for this type of question. I know I'm going to catch crap for this but...

I've been trying to find info on the intranets regarding my PSU and if it'll be able to handle a non-overclocked 470GTX (non-SLI). My system specs:

PSU in question: Corsair 520HX - about 2 years old and going strong.

i7-860 (stock)
Asus P7P55D Evo
9800GTX+ (to be replaced with a 470GTX)
2 sticks G.Skill DDR3 (stock)
3x 7200rpm WD drives
3x 120mm Fans (low-medium speed)
1x 140mm Fan
2x 92mm fans (medium speed)

Calculated Current draw via eXtreme PSU Calculator: 352watts
Calculated Current draw with 470GTX: 431watts


The reason I ask is because I don't want to have to shell out more cash for a PSU when the one I have is still pretty good so far. Also, I don't plan on on OC'ing the 470GTX when I get it. I've read reviews on the 520HX and how it can dish out more power, but I just wanted to be on the safe side and ask you fine folks of TPU for your expertise.

Thanks for your input!
 
Last edited:

Fourstaff

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#2
You will be fine with that PSU.
 
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#3
Sooo, first time, long time. I know I'm going to catch crap for this but...

I've been trying to find info on the intranets regarding my PSU and if it'll be able to handle a non-overclocked 470GTX (non-SLI). My system specs:

PSU in question: Corsair 520HX - about 2 years old and going strong.

i7-860 (stock)
Asus P7P55D Evo
9800GTX+ (to be replaced with a 470GTX)
2 sticks G.Skill DDR3 (stock)
3x 7200rpm WD drives
3x 120mm Fans (low-medium speed)
1x 140mm Fan
2x 92mm fans (medium speed)

Calculated Current draw via eXtreme PSU Calculator: 352watts
Calculated Current draw with 470GTX: 431watts


The reason I ask is because I don't want to have to shell out more cash for a PSU when the one I have is still pretty good so far. Also, I don't plan on on OC'ing the 470GTX when I get it. I've read reviews on the 520HX and how it can dish out more power, but I just wanted to be on the safe side and ask you fine folks of TPU for your expertise.

Thanks for your input!
The HX520 will handle your rig with a GTX470 just fine. Also, the PSU calculator programs are complete crap.
 
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#4
Thanks for the awesomely fast responses. Now I can sleep soundly at night.
 
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#5
remember, there is no stupid questions, only stupid answers ;)

and yes, the hx520 will do fine
 

Tatty_One

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#6
232W peak draw..... no problemo.
 
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#7
Thanks for all the responses. I assumed the online PSU calculators to be somewhere near the ballpark, but now I know I'm mistaken. How did you go about figuring out what the actual usage would be?
 
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#8
most of us in here have an idea of how much certain rigs uses of power and how big a psu it need, it comes with time lol
 
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#9
Thanks for all the responses. I assumed the online PSU calculators to be somewhere near the ballpark, but now I know I'm mistaken. How did you go about figuring out what the actual usage would be?
Look up reviews (the local ones from tPU! are awesome - W1zzard is a great reviewer) for the components you are using and then sum them up to get your total. In general you need the figures for your CPU(s) and GPU(s), then throw in some extra for your smaller components (~100W will usually be more than enough for your motherboard, other expansion cards, hard drives and fans).
 

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#10
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#11
That's card only though keep in mind. Not the whole system.
 
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#12
I have the same PSU and a GTX470 my PII is also unlocked to x4 and overclocked, no power issues here man!! :toast:
 
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#14
without overclock it's enough
 

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#15

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#17
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#18