gpu power requirement question

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kawahira2833

kawahira2833

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Feb 8, 2013
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Hello, I have a question about the the gtx 560 (not 560ti), the web page says it requires a 450w psu with 2 6 pin connectors, I own a corsair cx430 but it only has 1 (6+2) 8pin pci connector so I was wondering if, could I get an adapter cable to get the 2 6 pin required? and will the psu wattage 430w be enough? in a previous topic I read that the 450w in the page are for generic power supplies that don't supply actually what they specify. thanks in advance.
 
Solution
lonewolf7


For your current setup this will be enough :

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Corsair CX 600W 80 PLUS Bronze Certified ATX12V Power Supply ($54.99 @ Microcenter)
Total: $54.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-10-21 12:10 EDT-0400)

For future SLI you may need this :

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Corsair Builder 750W 80 PLUS Bronze...
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Elite_toaster

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Oct 16, 2013
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Hey, you sould be find with a 430 watt psu. Corsair rates their psu(s) at 80+, what this means that the psu is going to out put at least 80% of the rated wattage. If you watch Jayztwocents on youtube then you'll know that pc don't really need 1000w psu, he shows how a gtx 680 (oc), i7 (4.7ghz) and 12 fans use just over 400w at load. 1000w psu are for sli and crossfire etc.
 
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kawahira2833

kawahira2833

Honorable
Feb 8, 2013
19
0
10,510


hello thank you for your super fast reply! so I won't have to change the psu I glad, so I could safely adapt a 2nd 6pin cable to the psu (it's a small cable that converts 2 fan connectors to pci-e like this one http://image.dhgate.com/albu_214213766_00-1.0x0/4-pin-to-6-pin-pci-e-y-power-converter-adapter.jpg)?
 
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lonewolf7

lonewolf7

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May 6, 2013
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Don't use adapter cable for GPU from PSU, it will damage the GPU. Get atleast a 550W PSU of same brand or XFX, Seasonic or Antec.

Measured power consumption
1.System in IDLE = 201W
2.System Wattage with GPU in FULL Stress = 449W
3.Difference (GPU load) = 248W
4.Add average IDLE wattage ~ 50W
5.Subjective obtained GPU power consumption = ~ 298 Watts

•On your average system the card requires you to have a 500 Watt power supply unit.

And you will need 20A on the 12V rails as a safety margin. What would happen if your PSU can't cope with the load? Here are some pointers:
•bad 3D performance
•crashing games
•spontaneous reset or imminent shutdown of the PC
•freezing during gameplay
•PSU overload can cause it to break down
 
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Elite_toaster

Honorable
Oct 16, 2013
21
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10,520
i'd go with the 600w as it's only 10 dollars more on new egg. Try to find one that's not from the cx series as they only have two 6+2 pin connectors. what this means is that you cant crossfire or sli in the future unless you want to use the adapter cables.
 
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lonewolf7

lonewolf7

Splendid
May 6, 2013
5,113
2
24,965


For your current setup this will be enough :

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Corsair CX 600W 80 PLUS Bronze Certified ATX12V Power Supply ($54.99 @ Microcenter)
Total: $54.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-10-21 12:10 EDT-0400)

For future SLI you may need this :

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Corsair Builder 750W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($74.98 @ Newegg)
Total: $74.98
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-10-21 12:12 EDT-0400)

 
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