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Recommended PSU Wattage For These Specs?

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January 16, 2013 4:19:54 PM

I currently have:
Intel Core 2 Quad Q8300 2.5GHz
Gigabyte P41T-G3P
EVGA GeForce GTX 580
8GB DDR3 RAM (1000MHz)
(That's off the top of my head.)

I have a 700W PSU. I plan on getting an Intel i7 2700k with a motherboard to go with it, will 700W cut it?
a c 1194 ) Power supply
January 16, 2013 5:02:24 PM

For a system using a single GeForce GTX 580 graphics card NVIDIA specifies a minimum of a 600 Watt or greater power supply that has a maximum combined +12 Volt continuous current rating of 42 Amps or greater and that has at least one 6-pin and one 8-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Total Combined Continuous Power/Current Available on the +12V Rail(s) rated @ 45°C - 50°C ambient temperature, is the most important factor.

Overclocking of the CPU and/or GPU(s) will require an additional increase to the combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock you are trying to achieve.

Since you're planning on getting an Intel Core i7-2700K, that would usually mean you are going to overclock it. Plan on adding at least 5 more Amps to the PSU's combined +12 Volt continuous current rating to handle it.
January 16, 2013 5:06:43 PM

Actually, the i7 2700k is going to be a gift from a good friend.
I don't plan on overclocking it any time soon.
Is 700W alright now?
Sorry, I should have been a lot more clear.
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a b ) Power supply
January 16, 2013 5:11:55 PM

Hi :) 

ANY decent make 500 will do...

All the best Brett :) 
January 16, 2013 5:46:02 PM

Bubbles12 said:
I currently have:
Intel Core 2 Quad Q8300 2.5GHz
Gigabyte P41T-G3P
EVGA GeForce GTX 580
8GB DDR3 RAM (1000MHz)
(That's off the top of my head.)

I have a 700W PSU. I plan on getting an Intel i7 2700k with a motherboard to go with it, will 700W cut it?


yes 700 watts its fine for that build and ur new cpu. you can overclock ur 2700k to 4.8 ghz and still have alot of wattage left in ur 700 watt psu
a c 1194 ) Power supply
January 16, 2013 5:47:49 PM

What's the brand and model number of the 700 Watt PSU?
January 16, 2013 6:23:51 PM

Erm, I believe it is a Corsair 700W, model number? I have no idea.
I would take off my case, but for that... I need a screwdriver. Sorry for my 'noobiness'... haha.
January 16, 2013 6:28:40 PM

I can't edit my message, so I have to double post. You can consider this as a 'solved' since pretty much I've got the answers I've been looking for. Thanks.
a c 1194 ) Power supply
January 16, 2013 6:30:02 PM

Bubbles12 said:
Erm, I believe it is a Corsair 700W, model number? I have no idea.
I would take off my case, but for that... I need a screwdriver. Sorry for my 'noobiness'... haha.

The Corsair GS Series GS700 is the only 700 Watt power supply that Corsair has in their lineup.

The Corsair GS Series 700W (GS700), with its maximum combined +12 Volt continuous current rating of 58 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is more than sufficient to power your system configuration with a single GeForce GTX 580.
January 16, 2013 6:34:43 PM

@Ko888
Thank you for your reply, I had my father open up my case for me... and you're right, that's what I have. ; )
Now that I know, it will be safe for me to accept the 2700k.
Thanks you lot.
!