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Wanting to add a Second Video card

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#1 Lizardslap

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Posted 04 September 2014 - 17:55

Ok so I have currntly

Asus Z87-pro

i5 4670k at 4.4ghz

1 8gb stick of crutial ram

Evga GTX 760 overclocked one

2 hard drives no ssd a 1tb and a 3tb

a card reader and dvd drive

4 case fans silent

 

This is my powersupply

Spoiler

 

 

What I want to do is add a second gtx 760 found some for a faily good price and I have one already Will my power supply handle it I have tried a bunch of differnt power supply calculators and I get all differnt ranges some say I can some say I cant I think a few are just saying buy my power supply 

 

So I ask here



Best Answer Praetor , 04 September 2014 - 18:03

couldn't find much about that PSU, but i would suggest to buy a new one from a well reputable OEM. Also that gfx card draws 170W (http://www.evga.com/...=02G-P4-2765-KR), so a 1000W PSU or more is probably the best for a SLI combo.

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#2 Praetor

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Posted 04 September 2014 - 18:03   Best Answer

couldn't find much about that PSU, but i would suggest to buy a new one from a well reputable OEM. Also that gfx card draws 170W (http://www.evga.com/...=02G-P4-2765-KR), so a 1000W PSU or more is probably the best for a SLI combo.


Edited by Praetor, 04 September 2014 - 18:05.


#3 OP Lizardslap

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Posted 04 September 2014 - 18:08

ya the psu is discontinued I pulled it from my old computer when doing this build last year

 

Thanks I needed somone elses insight on it before I decided what to do first



#4 Praetor

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Posted 04 September 2014 - 18:16

one of the most underlooked component is the PSU; a good one will support the most demanding conditions and won't fail on you.



#5 OP Lizardslap

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Posted 04 September 2014 - 18:36

one of the most underlooked component is the PSU; a good one will support the most demanding conditions and won't fail on you.

Power supply isnt super old its 1.5 years mabey bought it with the grafix card when it was in my old computer

 

and upgraded the rest when it didnt do anything better lol

 

well I will invest in a power supply first then the card thanks



#6 Andre S.

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Posted 06 September 2014 - 23:24

It took me a while to find any info about that power supply. So here's what HardOCP had to say about a similar one:

 

Ultra hits rock bottom with a 750 watt PSU that claims NVIDIA SLI certification. Make a note to stay as far away from this flaming hunk of crap as you possibly can. If not, we highly suggest you make sure and have a fire extinguisher handy.

http://www.hardocp.c...y/#.VAuYomNnZwo

 

To be fair, Ultra did make (well, re-brand) better PSUs that that piece of crap, so it's possible yours is actually up to the task. I give up trying to find a review of your specific unit, but if you want to possibly save yourself 100$ or more, go ahead and try to dig some more info.

 

By the way I chose a 750W for my build with 2 GTX 760s and an overlocked Haswell and it's not even breaking a sweat. You certainly don't need a 1000W PSU. Just select one from a reputable brand, ideally with a fan that turns off when not under load (i.e. hybrid) and removable cables (i.e. modular).



#7 Praetor

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Posted 07 September 2014 - 00:03

It took me a while to find any info about that power supply. So here's what HardOCP had to say about a similar one:

 

 

To be fair, Ultra did make (well, re-brand) better PSUs that that piece of crap, so it's possible yours is actually up to the task. I give up trying to find a review of your specific unit, but if you want to possibly save yourself 100$ or more, go ahead and try to dig some more info.

 

By the way I chose a 750W for my build with 2 GTX 760s and an overlocked Haswell and it's not even breaking a sweat. You certainly don't need a 1000W PSU. Just select one from a reputable brand, ideally with a fan that turns off when not under load (i.e. hybrid) and removable cables (i.e. modular).

 

the fact that there is little to no info for that PSU is concerning; also the brand is labelled as junk, so it's no point to use it and risk burning the whole system just to save a bucks.

 

btw: did you measure the load your PSU has, under stress? because while real 750W PSU can be good for your build it's not that linear that it will work for the OP: he has 2 mechanical disks, DVD drive, card reader, 4 fans and a OC CPU..all of those consume watts and the SLI 760GTX would consume 340W alone, so a 750W would be quite limiting. So while a 1KW PSU is too much, it's future proof and it will deliver enough power for the OP's rig without sweating.



#8 Andre S.

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Posted 07 September 2014 - 00:14

the fact that there is little to no info for that PSU is concerning; also the brand is labelled as junk, so it's no point to use it and risk burning the whole system just to save a bucks.

 

btw: did you measure the load your PSU has, under stress? because while real 750W PSU can be good for your build it's not that linear that it will work for the OP: he has 2 mechanical disks, DVD drive, card reader, 4 fans and a OC CPU..all of those consume watts and the SLI 760GTX would consume 340W alone, so a 750W would be quite limiting. So while a 1KW PSU is too much, it's future proof and it will deliver enough power for the OP's rig without sweating.

Only difference from my build is an additional hard drive, however I'm also running an SSD. Advice around the net is consistent about 700W being a safe minimum for 2 GTX 760 in SLI.



#9 OP Lizardslap

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Posted 07 September 2014 - 15:06

Well its almost 2 years old when I bought the power supply it had decent reviews on newegg I rember they discontinued the model I had not long after I got it

I would like to get one thats more powerful anyway leave some headroom

 

I do appreciate the help I needed other opinions on the matter



#10 AwayfromHere

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Posted 07 September 2014 - 15:34

couldn't find much about that PSU, but i would suggest to buy a new one from a well reputable OEM. Also that gfx card draws 170W (http://www.evga.com/...=02G-P4-2765-KR), so a 1000W PSU or more is probably the best for a SLI combo.

 

Seriously? A 1000W PSU for two 760's? Are you out of your mind? I'm running two 280x's on a 750W PSU and it's fine. Both are enable whenever I game.

 

They will pull 170W on full load, which you can only achive when benchmarking with something like prime95 meant for GPU's.

 

The current PSU will do you just fine.



#11 AwayfromHere

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Posted 07 September 2014 - 15:45

Cant edit anymore.

 

1000W+

 

What the actual...LOL!