Power supply adequate for 3 GPU's?

[AnonymousAndy]

Hello.... is this PSU adequate for 2 7950s and one r9 280x?
I already have the PSU.

https://www.newegg.com/Product/Product.aspx?Item=N82E16817553004

The PSU will only power the cards including PCI-E power, not the CPU/fans/drives/mobo/etc

It has many 12v rails instead of 1 or 2... I don't know if it can handle the card

 

[Anonymouselite5]

Should be okay.
[strike]Most of the 12v rails are rated at 24A. Which mean each rail is capable of ~288w[/strike]. Since power=volts*amperage.

Not sure of the power draw of each of your cards but if they're pulling what I've found on review sites. A maximum of 270w-280w [strike]it is rather close.[/strike]
[strike]Probably would be safer (for your PSU life) to have more power but depends, [/strike]are you mining with these cards?
[strike]It will run if the PSU delivers what it's rated for, but perhaps not for a long time.[/strike]

[strike]I would recommend upgrading if you are doing mining though 😉[/strike]

 

[Anonymouselite5]

Well here ya go:
http://cougargaming.com/index_ss.php?id=539
Better specs listed here.
Cougar claim that it will split the power depending on load, and if you look at specs the two 12v rails are rated at 60A each (1020w total possible). So technically 720w capable through one rail.
So should run perfectly fine 😉

 

[AnonymousAndy]

Well here ya go:
http://cougargaming.com/index_ss.php?id=539
Better specs listed here.
Cougar claim that it will split the power depending on load, and if you look at specs the two 12v rails are rated at 60A each (1020w total possible). So technically 720w capable through one rail.
So should run perfectly fine 😉

Thanks for the reply, on the PSU itself it says 24amps per rail.
Edit: Ah, I found what you were talking about in the link. Thanks for the info. I was concerned by the 24amp per rail rating.

Would you happen to know about my next question?
Yes i'm mining with the cards. is 1 1000w PSU and 1 600w psu too much for one 110v wall socket?

The 600w powers the rest of the system and one 7950.

I'm having trouble with this rig and am trying to rule out power issues.

 

[Anonymouselite5]

Well here ya go:
http://cougargaming.com/index_ss.php?id=539
Better specs listed here.
Cougar claim that it will split the power depending on load, and if you look at specs the two 12v rails are rated at 60A each (1020w total possible). So technically 720w capable through one rail.
So should run perfectly fine 😉

Thanks for the reply, on the PSU itself it says 24amps per rail.
Edit: Ah, I found what you were talking about in the link. Thanks for the info. I was concerned by the 24amp per rail rating.

Would you happen to know about my next question?
Yes i'm mining with the cards. is 1 1000w PSU and 1 600w psu too much for one 110v wall socket?

The 600w powers the rest of the system and one 7950.

I'm having trouble with this rig and am trying to rule out power issues.

Im not certain what your power points over there are rated at. If possible you could check your electrical box and see what the breakers in there are rated at? most likely that is the current they dont want you to draw 😉

However lets say that it's rated at 15a. That's 1650w (15a*110v) Since Power(watts)=volts*amps. If you were to push your power supplies near the max say pulling 900w from the cards and 500w from the other system you're at ~1400w not accounting for loss of efficiency through your power supply and other components. Not to mention other devices in your house on the same line.
Theoretically yes you should be able to draw enough power for your systems as long as the wiring in your house is also up to spec. Say if you draw too much and the breaker is sized too large, it wont trip and you'll have wires heating up. Causing a fire hazard.

Me personally I would run them on different lines, Also since Im not to sure on your power specs over there.
Over here in AUS no problems. 2400w power points. 😉
Another problem you could face with the same point, is if you're going to be overclocking them to get the best rate when mining, or even aggressive undervolting to draw less power. Me and a friend found that sometimes when you have systems that have been overclocked they are stable with one system powered, but when both are pulling it seemed that we lost stability.
Just something to think about.

 

[AnonymousAndy]

Well here ya go:
http://cougargaming.com/index_ss.php?id=539
Better specs listed here.
Cougar claim that it will split the power depending on load, and if you look at specs the two 12v rails are rated at 60A each (1020w total possible). So technically 720w capable through one rail.
So should run perfectly fine 😉

Thanks for the reply, on the PSU itself it says 24amps per rail.
Edit: Ah, I found what you were talking about in the link. Thanks for the info. I was concerned by the 24amp per rail rating.

Would you happen to know about my next question?
Yes i'm mining with the cards. is 1 1000w PSU and 1 600w psu too much for one 110v wall socket?

The 600w powers the rest of the system and one 7950.

I'm having trouble with this rig and am trying to rule out power issues.

Im not certain what your power points over there are rated at. If possible you could check your electrical box and see what the breakers in there are rated at? most likely that is the current they dont want you to draw 😉

However lets say that it's rated at 15a. That's 1650w (15a*110v) Since Power(watts)=volts*amps. If you were to push your power supplies near the max say pulling 900w from the cards and 500w from the other system you're at ~1400w not accounting for loss of efficiency through your power supply and other components. Not to mention other devices in your house on the same line.
Theoretically yes you should be able to draw enough power for your systems as long as the wiring in your house is also up to spec. Say if you draw too much and the breaker is sized too large, it wont trip and you'll have wires heating up. Causing a fire hazard.

Me personally I would run them on different lines, Also since Im not to sure on your power specs over there.
Over here in AUS no problems. 2400w power points. 😉
Another problem you could face with the same point, is if you're going to be overclocking them to get the best rate when mining, or even aggressive undervolting to draw less power. Me and a friend found that sometimes when you have systems that have been overclocked they are stable with one system powered, but when both are pulling it seemed that we lost stability.
Just something to think about.

I live on a military base, literally can't even find the breaker in this house. I finally got the system running correctly, it turned out to be a MOBO BIOS issue. But anyway, I'm running the system with 2 PSUs from one 110v outlet, and the house hasn't burned down yet. The CPU and mobo are in max engery savings mode and CPU is severely underclocked and undervolted. The garage has one more outlet, on the opposite wall, but it has one of those reset switches so I'm hoping this means its on a separate run of wire. That outlet is occupied by a 1300w bitcoin miner >_>

Now just gotta deal with venting all the heat out lmao.
Thnx for your help.