Confusion on which PSU cables will work for 970 GPU

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Cereal16

Cereal16

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Sep 24, 2014
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I have the following PSU:
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817153157

I plan on purchasing the following GPU:
http://www.newegg.ca/Product/Product.aspx?Item=N82E16814121899&Tpk=asus%20970

I guess my question is, will that PSU work with that video card?

If so, I don't understand which cables to use from the PSU to the Video card. It would be nice if someone could explain to me why it works the way it does, rather than just tell me.

"+3.3V@25A, +5V@25A, +12V@62A, -12V@0.8A, +5VSB@3.0A"

From what I understand, I want the +12V Single Rail@62A going into my video card because it requires extra juice. The 970 Asus Strix card requires a single 8 pin (please correct me if I'm wrong) and I have no idea which PSU cable to use that will satisfy the power requirements.

Thanks in advance,
Cereal16
 
Solution
Anonymouselite5
That psu will be able to run a gtx 970, The gtx 970 takes up to 145w of power, and the 12v rail has enough amperage on it to run it as well.

Okay, Basically the card will need 2 pci power connectors from the psu. These will deliver the wattage the gpu will need. You'll know which plugs these are by looking at the cards connectors and just looking at the psu's connectors. The cables from the psu will also say what they're for on it.

So wattage is how much power draw it takes, but voltage is something different. In a psu the electricity is pulled through a path called a rail. This rail is set to run at a certain voltage and amperage, your computer combined pulls through this rail whatever electricity it needs. The 970 wants about 125w...
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Anonymouselite5

Anonymouselite5

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That psu will be able to run a gtx 970, The gtx 970 takes up to 145w of power, and the 12v rail has enough amperage on it to run it as well.

Okay, Basically the card will need 2 pci power connectors from the psu. These will deliver the wattage the gpu will need. You'll know which plugs these are by looking at the cards connectors and just looking at the psu's connectors. The cables from the psu will also say what they're for on it.

So wattage is how much power draw it takes, but voltage is something different. In a psu the electricity is pulled through a path called a rail. This rail is set to run at a certain voltage and amperage, your computer combined pulls through this rail whatever electricity it needs. The 970 wants about 125w and 28amps. The power supply converts the current from your wall into these which allows your system to use it.

That is is basically, but you shouldn't have to worry about the other stuff. You just have to know how to figure out if it will run what you want it to. 2 crucial factors,
1. wattage
2. amperage on the psu rail.

Some psu's have more than one rail but once again the psu will be made to handle what you put on those rails so we shouldn't have to worry about that.

-good luck



edit:

If so, I don't understand which cables to use from the PSU to the Video card. It would be nice if someone could explain to me why it works the way it does, rather than just tell me.

"+3.3V@25A, +5V@25A, +12V@62A, -12V@0.8A, +5VSB@3.0A"

Those are the amperage of rails, The 12v rail can handle up to 62 amps which is good. The 12V rail is always the rail which takes the large components.
 
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Solution
Cereal16

Cereal16

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I'm aware of the pin orientations and how they work.

@Because0789:

Are you saying that I need to use the 6+2 connector, but plug it into the modular spot that supplies the +12V@62A output?

Thanks!
 
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