Power supply +graphic card

[Henry_102]

Is a Corsair cx-600 v3 good enough to power a 1080 it with overclock just curious don’t wanna break my gpu

 

[jacobweaver800]

no that won't be enough, your going to want at least a 750 watt from a good known brand like Corsair

 

[Henry_102]

no that won't be enough, your going to want at least a 750 watt from a good known brand like Corsair

Seriously? If I don’t will it break my gpu

 

[jacobweaver800]

Without an over clock you might get away with it but for overclocking a 1080ti a good 750 watt psu is recommended

 

[derekullo]

Why are you spending $1000+ on a top end gpu that you want to overclock with and then going cheap on the power supply?

A Corsair RM750x is only $109

https://www.newegg.com/Product/Product.aspx?Item=N82E16817139142&cm_re=rm750-_-17-139-142-_-Product

 

[jacobweaver800]

Yeah, I don't get it. You do realize if you spend a lot of money on a high end system and buy a crappy or too low watt psu it will die and could take every part in your system with it from the cpu, gpu, to even the hard drive or ssd

 

[turkey3_scratch]

no that won't be enough, your going to want at least a 750 watt from a good known brand like Corsair

Why would a 600W power supply not be fine for him when an overclocked GTX 1080 would use under 250W? (he does need to specify the rest of the system still admittedly)

 

[jacobweaver800]

Even if the total system power draw will be just under 600w it's good to have a psu with more wattage than you need, over time every psu will degrade and output less power than originally specced

 

[turkey3_scratch]

Even if the total system power draw will be just under 600w it's good to have a psu with more wattage than you need, over time every psu will degrade and output less power than originally specced

You say the PSU will output less power over time.

Are you implying that there is a maximum power output that can decrease? What would you say happens when this maximum is reached?

 

[jacobweaver800]

Yeah, PSU's will often not be able to output there max wattage under full load and once they get older. In saying if he's spending so much on a 1080 ti and wants to over clock he should get atleast a 750w from a good brand

 

[turkey3_scratch]

Yeah, PSU's will often not be able to output there max wattage under full load and once they get older. In saying if he's spending so much on a 1080 ti and wants to over clock he should get atleast a 750w from a good brand

If they can't output their max wattage wouldn't overpower protection be pointless? Overpower protection is in place for when power reaches a certain value, and the power supply will shut itself off. If there is such a thing as a "maximum output", though, that decreases, then that maximum output would be below the overpower protection threshold. Wouldn't that make overpower protection a useless protection and a waste of money for engineers and manufacturers to implement?

 

[jacobweaver800]

First of all, it's over current protection and it's not useless it can stop a PSU under too much load from smoking or litteraly melting inside your case. And I have never met anyone stupid enough to buy a PSU with barely enough wattage for a system. And no I was not lying Psus can't output max power under higher stress loads do to the efficiency curve, and over time it will degrade the PSU from heat and usage that it won't be able to output the max it could new

 

[turkey3_scratch]

First of all, it's over current protection and it's not useless it can stop a PSU under too much load from smoking or litteraly melting inside your case. And I have never met anyone stupid enough to buy a PSU with barely enough wattage for a system. And no I was not lying Psus can't output max power under higher stress loads do to the efficiency curve, and over time it will degrade the PSU from heat and usage that it won't be able to output the max it could new

Check out this post on Jonnyguru by The Mask, who is a power supply expert and has done professional power supply reviews himself. http://www.jonnyguru.com/forums/showpost.php?p=146170&postcount=2

Someone poses the question:

I've heard that PSU capability to output its labeled wattage decreases over time is that true?

He responds:

No

Do you think he is incorrect?

Also, overpower protection does exist. Overpower protection and overcurrent protection are two different things. Overcurrent protection looks at the power output of a group of wires, and overcurrent protection looks at the power input of the entire PSU (wattage from the wall).

These protections are in place for when people try to pull too much power, above the threshold. But if you say that the power output is already at some maximum that decreases, you are implying that the protection thresholds can never be reached in the first place. Wouldn't that make them completely useless? Do you see what I'm saying here? (BTW all is good here, this is just a friendly discussion)

 

[jacobweaver800]

I don't see what your saying, and also it's a 1080 ti he wants to oc not a 1080, for a 1080 600 might be enough for a small oc. However, over time a psu will degrade, and the over current protection limits will come down with it. What's the point in going with a 600w psu that could fry his system later on than being safe and going with a 750w which is recommended by EVGA for 1080ti overclocking

 

[Henry_102]

Jacob I overclock extremely rarely in fact I haven’t even done it yet as none of my games need it yet I am just asking as I don’t wanna spend more on another psi at this time however I will in future. It’s just that my gpu has the capability to overclock that’s why I asked.

 

[turkey3_scratch]

I don't see what your saying, and also it's a 1080 ti he wants to oc not a 1080, for a 1080 600 might be enough for a small oc. However, over time a psu will degrade, and the over current protection limits will come down with it.

Overcurrent protection limits do not change over time. They are set in stone and are programmed into the housekeeping IC of the power supply. Also, two years ago on Jonnyguru.com I posed the question "Can a power maximum really be hit?" You can browse through it here if you want http://www.jonnyguru.com/forums/showthread.php?t=13311

Also, I did not notice it was a 1080Ti, as it reads directly "1080 it". Nonetheless, a 1080Ti overclocked should not really be over 300W, and his whole system would probably be around 450W or below when gaming I suspect.

What's the point in going with a 600w psu that could fry his system later on than being safe and going with a 750w which is recommended by EVGA for 1080ti overclocking

It's everyone's freedom to adhere or not to EVGA's recommendations, but for me (and some other people, but not everyone) we don't care what EVGA recommends. EVGA does not know his system specs, and there is no denying that a high quality 550W power supply, which doesn't adhere to EVGA's recommendation, would probably be much safer and last longer with his system than a crappy 750W power supply, which does adhere to EVGA's recommendations.

 

[turkey3_scratch]

Jacob I overclock extremely rarely in fact I haven’t even done it yet as none of my games need it yet I am just asking as I don’t wanna spend more on another psi at this time however I will in future. It’s just that my gpu has the capability to overclock that’s why I asked.

Can you list your full system specs please?

 

[4745454b]

Why a 750? Won't that fail over time as well? Or is there something magical in them that prevents that from being a problem? Using that logic we should all be running 1.5kW+ PSUs. I also found it odd someone suggested getting a good PSU like a Corsair, when the OP is asking about using a Corsair PSU. Interesting...

I'm assuming the OP is asking about the new "grey label" CX that's on the market now. You can run the 1080 on that, OC even. But I agree with the above. All that money spent on a card, and you get a cheap bronze unit? I'd get a good ~550W gold unit with a 5-10yr warranty. Looking at newegg right now I don't even see a grey label CX600. (I think the grey label ones only come in X50W measurements, so it would be a 650W.) Something like this would work fine, and is only $55 after rebate.

https://www.newegg.com/Product/Product.aspx?Item=N82E16817151203

 

[turkey3_scratch]

I believe OP already owns the power supply, so to me changing it is probably unnecessary. I wouldn't. I'd wait until it dies.

 

[Henry_102]

Corsair cx-600 v3 (power supply)

Corsair Vengeance LPX CMK8GX4M2A2133C13R 8GB (2x4GB) (ram)

ASRock Fatal1ty E3V5 Performance (Motherboard)

Intel Core i5 6600 (CPU)

Gigabyte GeForce GTX 1080 Ti AORUS Xtreme Edition 11GB (Graphics card)

Corsair Graphite 780T Black Full Tower (Case)

 

[jacobweaver800]

Ok listen, the average cost on a 1080 ti is around 800-1000 depending on the card, if you spend that much on the gpu alone atleast get a decent psu for it. I get if your not overclocking a 600w is plenty, but once you start to overclock power draw can significantly climb

 

[turkey3_scratch]

Corsair cx-600 v3 (power supply)

Corsair Vengeance LPX CMK8GX4M2A2133C13R 8GB (2x4GB) (ram)

ASRock Fatal1ty E3V5 Performance (Motherboard)

Intel Core i5 6600 (CPU)

Gigabyte GeForce GTX 1080 Ti AORUS Xtreme Edition 11GB (Graphics card)

Corsair Graphite 780T Black Full Tower (Case)

Dude you're totally fine. A CPU like that will use, like, under 60W when gaming. So even if the GPU is high powered your system I do not expect will go over 400W when gaming.

 

[turkey3_scratch]

Ok listen, the average cost on a 1080 ti is around 800-1000 depending on the card, if you spend that much on the gpu alone atleast get a decent psu for it. I get if your not overclocking a 600w is plenty, but once you start to overclock power draw can significantly climb

I agree with your thinking, but it's still a personal decision. Both you and I would probably get a better power supply than a CX600, but if he or someone else wants it (or already owns it), it is what it is I guess, you know? Insofar as our abilities, we can't control everyone's purchases; we can advise but at the end of the day people do what they want to do because they believe it'll make them happiest.

 

[4745454b]

If he already owns the green label PSU I'd ask how long he's ran it. As noted above the draw even on a normally OC'd system won't really be above 450W. That's a 75% load on the PSU. I'd still get the one I linked above, but if he's using that PSU already I'd just get the 1080 and be happy. Upgrade the PSU and OC when you need to.

 

[jacobweaver800]

I'm not saying 750ws are magical, in saying if your spending this much money on a system don't cheap on the PSU and get a decent one that's high wattage, and who knows maybe down the line he wants to add a second 1080ti or upgrade is pc, he can reuse the psu, just because his system won't saturate 750w doesn't mean it's not worth it to get it