Asus Strix 970 SLI

[DjordjeR]

Hi, guys. I decided to sell my laptop and make myself a computer, it would be my first build. Because I do not have enough money to do it all at once, I was planning to add jet another card maybe in next year or so. I decided to buy Asus Strix 970 GPU, and I wanted to know is Corsair 550W 80+ Gold PSU going to be enough. Please, do know that the estimated wattage is 351W acording to pcpartpicker.com with everything I'm going to use, except that other card. 

[Prastupok]

Hi, guys. I decided to sell my laptop and make myself a computer, it would be my first build. Because I do not have enough money to do it all at once, I was planning to add jet another card maybe in next year or so. I decided to buy Asus Strix 970 GPU, and I wanted to know is Corsair 550W 80+ Gold PSU going to be enough. Please, do know that the estimated wattage is 351W acording to pcpartpicker.com with everything I'm going to use, except that other card. 

 

No. If you want to add another card, add ~150w. That says 500. You want more than a 50 watt buffer.

 

Edit: Make sure to follow your topics, DjordjeR

[Tarzan]

550W is fine for 1 970, but if you SLI, you'll need 750W.

[DjordjeR]

Okay thank you. So you reckon I'd be better off with a 750w PSU?

[DeViLzzz]

If you are going to go SLI I assume you are also a person that wants all the performance they can get and so I expect you will be overclocking the cpu and the two cards so uh yeah you are going to need more than that psu you asked about.

[KamiKatze]

Hi, guys. I decided to sell my laptop and make myself a computer, it would be my first build. Because I do not have enough money to do it all at once, I was planning to add jet another card maybe in next year or so. I decided to buy Asus Strix 970 GPU, and I wanted to know is Corsair 550W 80+ Gold PSU going to be enough. Please, do know that the estimated wattage is 351W acording to pcpartpicker.com with everything I'm going to use, except that other card. 

No. If you want to add another card, add ~150w. That says 500. You want more than a 50 watt buffer.

 

Edit: Make sure to follow your topics, .

550W is fine for 1 970, but if you SLI, you'll need 750W.

 

Wrong.

 

I used to have a 970 SLI. I had them overclocked to the max. Together with my 4670K (rest of system in the sig) i was drawing 400W off the wall under synthetic 100% load. The 550W Corsair PSu that you got there could probably handle it. I personally would still go with a bigger PSU but you could probably get away with it, depending on the rest of your PC.

[DjordjeR]

Well, I took K version of CPU just because of higher clock speed, I wasnt actually going to overclock. I was afraid that everything over 650W would be unnecessary and that I would use more electricity for no apparent reason.

[KamiKatze]

Well, I took K version of CPU just because of higher clock speed, I wasnt actually going to overclock. I was afraid that everything over 650W would be unnecessary and that I would use more electricity for no apparent reason.

 

You need to quote people, so they get notifications.

 

A PSU doesn't work that way. It only draws as much power at the system needs at the time. a 500W PSU will, just like a 1000W PSU, only draw around 100W in idle and increase the output with increasing system load. Don't worry about buying bigger PSUs.

 

Getting a PSU with appropriate Power is however a good idea because it has it's best efficiency in converting AC to DC at around 60-80% load. So for your Setup, a 600-700W PSU should be perfect.

[DjordjeR]

You need to quote people, so they get notifications.

 

A PSU doesn't work that way. It only draws as much power at the system needs at the time. a 500W PSU will, just like a 1000W PSU, only draw around 100W in idle and increase the output with increasing system load. Don't worry about buying bigger PSUs.

 

Getting a PSU with appropriate Power is however a good idea because it has it's best efficiency in converting AC to DC at around 60-80% load. So for your Setup, a 600-700W PSU should be perfect.

 

 

If you are going to go SLI I assume you are also a person that wants all the performance they can get and so I expect you will be overclocking the cpu and the two cards so uh yeah you are going to need more than that psu you asked about.

 

 

550W is fine for 1 970, but if you SLI, you'll need 750W.

 

 

No. If you want to add another card, add ~150w. That says 500. You want more than a 50 watt buffer.

 

Edit: Make sure to follow your topics, DjordjeR

 

Okay, guys thank you a lot. I'm quite new with all of this including the forum. I'm a first time builder, I like computers I'm studying Computer Science, so I'm quite young and I do not know everything but you helped me. So for you to know I'll go with 650W PSU 80+ Gold from Corsair, I would go better but my budget does not allow it. When I made a remark about greater wattage PSUs I was referring to Linus's video : 

. It is possible I misunderstood. Thank you, one more.