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Power supply minimum

Last response: in Components
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November 24, 2012 2:37:53 AM

I have a 500 watt power supply, and I just ordered a evga gtx 560 ti 448 core classified ultra (012-P3-2078-KR) from newegg. The only problem is that the "minimum" power supply warning for this card is 550 watts, 50 watts above my ps. When I plug my specs into extreme ps calculator, it says i only need a 450... so do I need to buy a new ps?
specs:
i5 3570k NOT OVERCLOCKED (yet, might go to 4ghz later)
2x4gb (8gb) of crucial ballistix
seagate 1tb 7200 etc etc its like the most popular hard drive right now i think you know which one im talking about
lite-on 17 dollar cheap cd/dvd burner just to get by (works fine btw, dont hate, its not an important part of the computer really)
pci-e 1x wireless card
2x 120mm fans (one is the rear exhaust and the other is the cpu fan)
1x 140mm front intake
thats about it... i think.
SO THE QUESTION IS, IS IT WORTH 75-100 or more DOLLARS TO GET A 600+ WATT POWER SUPPLY?

More about : power supply minimum

November 24, 2012 2:38:59 AM

Oh i forgot, my motherboard is a asrock z77 extreme4
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a c 89 ) Power supply
November 24, 2012 2:42:39 AM

Better question is what PSU you have. Not all PSUs are created equally.
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a c 83 ) Power supply
November 24, 2012 2:43:37 AM

wattage(TOTAL) is only part of the story, How much 12 volt current do you have?

I have seen 450 watt power supplies with 420 watts @ 12 volts and others with 200 watts @ 12 volts(the rest is on the 3.3 and 5).

12 volts is what video cards and cpus crave.

EDITed for clarity
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November 24, 2012 4:08:57 AM

ok so my power supply is a corsair cx 500.... brand new... works good right now
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a c 83 ) Power supply
November 24, 2012 4:35:25 AM

456 watts(38A) at 12 volts should be all good.

The card should draw about 150 is most demanding games and about 200 TOPS with furmarks.
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November 24, 2012 4:39:01 AM

ok so i have 150 dollars left in my budget, is it worth it to get a 600+ watt power supply and would you suggest? would like to keep sli as an upgrade option if i upgrade my power supply. also! would anyone like to buy my cx500? 2 weeks of usage, handled carefully, all parts included etc etc
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November 24, 2012 4:40:03 AM

40 dollars
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a c 301 ) Power supply
November 24, 2012 12:05:10 PM

kotimex said:
ok so i have 150 dollars left in my budget, is it worth it to get a 600+ watt power supply and would you suggest? would like to keep sli as an upgrade option if i upgrade my power supply. also! would anyone like to buy my cx500? 2 weeks of usage, handled carefully, all parts included etc etc


Hi - If you are going to SLI then you do need more power than the cx500. Are you able to return, sell, or trade it?
However, most 600w units only include 2 pci-e connectors, if either of the GPU's you SLI with require more than
1 pci-e connector, you'd be out of luck (unless you use adapters - not recommended). Just keep that in mind when deciding.

Tom

For far less than $150 (if you are in the US) you van get a quality 750w unit which would assure you
of enough pci-e connectors.
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a c 301 ) Power supply
November 24, 2012 12:10:12 PM

kotimex said:
ok so i have 150 dollars left in my budget, is it worth it to get a 600+ watt power supply and would you suggest? would like to keep sli as an upgrade option if i upgrade my power supply. also! would anyone like to buy my cx500? 2 weeks of usage, handled carefully, all parts included etc etc



An outstanding price/value unit:

http://www.newegg.com/Product/Product.aspx?Item=N82E168... Seasonic built - nets to $60 after mir

and includes 4 pci-e connectors
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November 24, 2012 7:32:27 PM

@toyftw why thank you! good information indeed
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