POWER for a EVGA GTX 980ti K|ngp|n

[Wishiwasdead]

so this is a PSU question... but im putting in the GPU section because its a card specific question...

 

but anyways, what is the absolute max power draw that this card is capable of, and there for the minimum wattage PSU you would need to power this card at the extreme end of overclocking that this card is capable of putting out?

 

this is a hypothetical question, i do not own (or plan to own) this card... so there are no other system specs to include 

[Morgan MLGman]

650W PSU is fine for one, 850W for SLI.

[beach_boy98]

750w might be slightly overkill but better be safe than sorry.

[kameshss]

Like 650w.

[samcool55]

Absolute max power it can possibly eat up, 450W, just the card itself. And then it would draw the maximum amount of power through each power connector it gets.

 

It will NOT draw that much power, but if you just count the power it can get from all the power connectors, you will end up at 450W.

[Wishiwasdead]

Absolute max power it can possibly eat up, 450W, just the card itself. And then it would draw the maximum amount of power through each power connector it gets.

explain please

[samcool55]

explain please

PCI-E power connector can deliver up to 75W

the 6-pin connector can deliver another 75W

And an 8-pin connector can deliver 150W, and it has 2 of them.

 

So 75W+75W+150W+150W = 450W.

 

That's how much power it can draw safely in theory.

[Wishiwasdead]

PCI-E power connector can deliver up to 75W

the 6-pin connector can deliver another 75W

And an 8-pin connector can deliver 150W, and it has 2 of them.

 

So 75W+75W+150W+150W = 450W.

 

That's how much power it can draw safely in theory.

did not know that, thanks!

[pckid]

Absolute max power it can possibly eat up, 450W, just the card itself. And then it would draw the maximum amount of power through each power connector it gets.

 

It will NOT draw that much power, but if you just count the power it can get from all the power connectors, you will end up at 450W.

Even though it probably only uses 250 watts.

[samcool55]

Even though it probably only uses 250 watts.

Yes that sounds a lot more realistic, and as i said it won't draw 450W, but if for some weird-ass reason the card needs more power, it can get up to 450w safely. But tbh if it does that, something is probably broken, or you know very well what you are doing

[Lays]

PCI-E power connector can deliver up to 75W

the 6-pin connector can deliver another 75W

And an 8-pin connector can deliver 150W, and it has 2 of them.

 

So 75W+75W+150W+150W = 450W.

 

That's how much power it can draw safely in theory.

 

 

Those ratings are ancient now, I remember @don_svetlio or someone recently posting stuff that those specifications are no longer enforced.

 

 

Even though it probably only uses 250 watts.

 

 

It will DEFINITELY eat more if you put the extreme overclocking BIOS on it, and start cranking some high clocks out of it.

 

My 980 TI matrix easily hits 130% TDP with only 1.22 volts, that's 325 watts!

With fine tuning & a good card and extra voltage adding, 350 watt+ is easily do-able.

 

 

 

Also, if the kingpin can only pull 450 watts, explain this:

 

OBVIOUSLY THIS IS AN EXTREME SCENARIO, I'M JUST SHOWING WHAT IT CAN ACTUALLY DO:

 

 

[Wishiwasdead]

Those ratings are ancient now, I remember @don_svetlio or someone recently posting stuff that those specifications are no longer enforced.

 

 

 

 

It will DEFINITELY eat more if you put the extreme overclocking BIOS on it, and start cranking some high clocks out of it.

 

My 980 TI matrix easily hits 130% TDP with only 1.22 volts, that's 325 watts!

With fine tuning & a good card and extra voltage adding, 350 watt+ is easily do-able.

 

 

 

Also, if the kingpin can only pull 450 watts, explain this:

 

OBVIOUSLY THIS IS AN EXTREME SCENARIO, I'M JUST SHOWING WHAT IT CAN ACTUALLY DO:

 

 

 

 

what site did you get that from?

[Lays]

what site did you get that from?

 

 

From the official 980 TI Kingpin overclocking guide, on Kingpincooling.com 

 

On Ln2 @ 2000+ mhz, it's very possible for the card to peak over 1800 watts in benchmarks.

[samcool55]

Those ratings are ancient now, I remember @don_svetlio or someone recently posting stuff that those specifications are no longer enforced.

 

Probably about the 295x2 exceeding the power limit.

And as i said every time it's in theory and it's safe. The rating are not outdated or something. It's just that not everyone builds their stuff according to the ATX standard. Which is a bad thing because it causes more stress on the plugs and wires than they are rated for.

[Lays]

Probably about the 295x2 exceeding the power limit.

And as i said every time it's in theory and it's safe. The rating are not outdated or something. It's just that not everyone builds their stuff according to the ATX standard. Which is a bad thing because it causes more stress on the plugs and wires than they are rated for.

 

 

If you're not buying a piece of shit power supply, it should be absolutely no problem putting more current through them. 

[samcool55]

If you're not buying a piece of shit power supply, it should be absolutely no problem putting more current through them. 

Yes there shouldn't be a problem. But still if you say X device works according to a certain standard, and it doesn't, it can have dramatic consequences.

VW anyone?

[Naeaes]

-SNIP-

 

I gotta say, the standards are followed and enforced for the most part. That's required by law for consumer electronics. An un-certificied PSU from a respected company would hit the news pretty hard. I'm not talking ATX/EPS12V only, but CE-certifications and such too. The issue with your reasoning is that, as per ATX and EPS12V standards, the power those connectors must be able to deliver is stated in minimum sustained values. A good ATX power supply can and will deliver more than what's at minimum required and there's no reason for them not to. So long as other restricting factors like shielding requirements are meat. Simple as that.

 

I'd love to know more about those test results you posted but generally cooling the devices with friggin' LN2 (liquid nitrogen!) allows a whole lot of funky stuff to happen. How did they cool down the PSU? What make/model was it and so on.

 

For OP, get a good PSU from a respected company that has natively (without adapters) the connectors you need. The two 8-pin ones and the 6-pin. Your CPU likely takes an 8-pin too and so on.

[Wishiwasdead]

 

For OP, get a good PSU from a respected company that has natively (without adapters) the connectors you need. The two 8-pin ones and the 6-pin. Your CPU likely takes an 8-pin too and so on.

 

thanks, but yeah i get that... i was just wondering what the max power draw of that card was...

[Naeaes]

thanks, but yeah i get that... i was just wondering what the max power draw of that card was...

Fair enough. Well, that's more complicated. The inner workings of the card and especially the chip itself cause there to be a lot of variance between individuals. GPUs and CPUs and RAMs and all the things that contain silicon chips cannot be fine-tuned to match a set criteria. Like a car's engine can be tuned to exactly a specific horsepower. BUt that's not the case with silicon chips. Chips can basically be disregarded and junked if they don't come out just right but that's very wasteful. Instead they allow a certain amount of variance from optimal, take all the chips that apply and make lesser cards of the rest. So very plainly put, any chip that cannot be a 980TI Kingpin, becomes a 980Ti and any that's not even that is a 980 and so on and so on. The measures, how much the card needs power and how efficiently it uses it are among the varying things. And like a few people here stated out, some individual cards can draw a lot of power. Like a lot-lot. This all boils down to the fact that all you can really do is measure how much your card draws power. Not my card. Not a trustworthy reviewer's card. Your card.

 

Either that or live with the facts that there is a set parameter that the card is intended/designed/marketed... to max out (450W) as it's operating at the advertised values (1203MHz base, 1304MHz Boost, 7010MHz memory) That's not to say it won't draw more if you OC it or that it won't malfunction in the long run and start drawing more at those clocks and so on. But that's all RMA-able then.