1080 ti on 500w 80+ gold psu?

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newbie1337

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I've just purchased a 1080ti for my lan system which is in a evga hadron air case. It comes with an inbuilt 500w 80+ psu with 40a on the 12v rail. I assume this should be enough to power it but thought I'd ask here for opinions thanks.
 
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chemmajorp53
It would be possible to run it on a 500W crap unit for a bit, but the PSU probably isn't rated for 500W of continuous use, it's rated for 500W spurts of use or else it will overheat/shut off/catch on fire. I have a gpu with the same TDP and frequently pull ~400W during very heavy game loads. That PSU simply won't handle that kind of load. I promise that money that you spent on the G series is well worth it in the long run.
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I'm aware of the recommended psu being 600w but I dont see this card pulling more than 480w from the wall underload? I do agree the lack of reviews on this particular psu make it hard to tell. I've been running a 980 in here since launch with 0 problems however I am aware of the power draw increase for the 1080 ti.
 
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If you're overclocking anything I wouldn't even try it. Probably the worst thing that would happen would be a crash. Probably. That case seems to date back to 2013 or earlier meaning the power supply is even more suspect in quality.

Assuming a brand new power supply putting out its rated wattage and with no capacitor aging, a stock clocked system would probably just get by with it. The Founder's Edition cards thermal throttle at stock speeds anyway so you aren't going to overclock it much.

Techpowerup pulled 267w when gaming.

https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080_Ti/28.html

You really don't want to stress an OEM, came with the case tier power supply. Not at anywhere near 100% load.



 
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My 500w evga $39.99 psu off Amazon works good with it and I oc the cpu(95w), ram, and card to about 25% over too.
Click to expand...


Well I'm sure you have your reasons for risking a $700 graphics card to a $40, low end power supply. I wouldn't begin to guess what they are. As far as I know only the founders Edition 1080 Ti cards have been available so far and they don't overclock 25% unless you use an aftermarket cooler. So assuming you're telling the truth I'd put $20 on that power supply not lasting a year since you have to be close to 100% load. Is it damaging capacitors on your shiny new $700 graphics card and motherboard? I guess you'll find out. :)

I'd also love to see that 25% RAM overclock.


How many times you going to post that and delete it?
 
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Right and your low end EVGA 500b? hopefully it's not the white box one that's lower end than that, only supplies 40 amps on the 12v rail. meaning you have a max 480 watts ( amps x volts = watts ) before that unit is at 100% load. Running a power supply meant for an office PC at 100% load never ends well. Good luck. I hope it's not damaging your system.

Also you do understand the problems with using a sample size of one right? I'm doing it and it works so it's a good idea is a logical fallacy. Especially when it goes against all other recommendations.
 
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No way would I risk a 1080Ti on a no name 500w, Ive seen what can happen when PSU's fail. There is no reason to run a psu anywhere near its max, thats asking for trouble, I always build in at least 1/3rd extra over the max a system can take. Your also assuming it can actually deliver whats printed on the label which far to often is a work of fiction on these low end units.
 
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I'll be 43 next month and I've been building my own computers since 1998. Bought my first computer in 1996. Also an avid gamer since the 1970s and Pong.

You literally have the worst power supply EVGA offers, worse than the 500b. That's the white box unit I mentioned above. I don't buy into marketing hype and I'm fully aware of what is really needed to power modern systems. I was involved in the creation of our power supply tier list.

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

That unit is made by HEC and belongs in an office PC at best. There is no way in hell I would power a flagship GPU with one. You are running it at close to 100% load. Substandard primary capacitors and a 40c rating mean that's going to kill it quick. That's actually better for you because that way the terrible 12v regulation can't damage the capacitors on your motherboard and new graphics card.

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story6&reid=384

TL : DR, It's your money. Risk it if you want. The power supply is not the place to shave $15 -$20 off your build.

But this is derailing the OP's thread. He asked about a specific power supply that's only available built into a specific case. So this is not relevant.

 
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I know it may work for you but overclocking a 1080ti and whatever CPU you have is a bad idea. Just because it works fine now doesn't mean its going to last, and when a PSU fails, especially if its not a good one it could cause damage on the way out.

http://www.overclock.net/t/1500086/why-you-should-not-buy-an-evga-400-600-and-500b-600b

Note the HARDOCP FAIL.
 
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Those are the 400b, 500b and 600b. Those are stellar units compared to the white box unit he's using.
 
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Yes, the white box units are horrible. A friend of mine had the 600w white, and it died running an i5 4590, and a GTX 560ti. I would never trust a $500+ graphics card with an HEC built PSU. Seasonic and Superflower built units, and some of Corsair's newer PSU's are all I would trust with such a GPU.
 
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Actually check it out closer the FAIL is from the EVGA 430W which is the same as his unit except less wattage.

https://www.hardocp.com/article/2015/02/19/evga_430w_power_supply_review/9
 
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Newbie, we're at the end of the day. Who are you gonna trust, forum moderators who have years of experience, or some random new account that says that he has a 1080 ti.

 
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Speaking from experience. I tried a weaker PSU with a GTX 460 back years ago and it worked but after a while it failed. Nothing died with it but I was lucky. Ever since then I've decided to never skimp on the PSU because it is arguably the most important part of the computer. I'd describe it as the heart of the computer. Just because it works fine now doesn't mean it will be working fine for very long. Just like you I thought I was going to be fine with a cheap power supply but I was wrong and it took a while for it to fail but it did eventfully fail.
 
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Awhile since I've been on here been busy but just an update on the system decided to put the 1080ti in my main pc on a 650 seasonic g series. Although the numbers in my head tell me that it is "possible" to run in on the 500w psu without enough information being available on it I'd rather not risk a £700 gpu. :)
 
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It would be possible to run it on a 500W crap unit for a bit, but the PSU probably isn't rated for 500W of continuous use, it's rated for 500W spurts of use or else it will overheat/shut off/catch on fire. I have a gpu with the same TDP and frequently pull ~400W during very heavy game loads. That PSU simply won't handle that kind of load. I promise that money that you spent on the G series is well worth it in the long run.
 
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Solution


Excellent choice. I have the 450w version in my server its been rock solid running 24/7.
 
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Right now I have a 850W seasonic under load with the 1080ti overclocked I've seen the load Max out at 320W from the wall.

BTW I was looking here because I was trying to figure out if I should chance 1-2 days with the 500W evga when 95% of the time I'm under 100W.
 
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