Will a GTX 970 run on my 450w psu?

[MrTrains]

I have a gtx 970 that I would like to run in my pc, but I have a 450w psu and I really dont want to have to buy another psu. Its a Corsair 450w V2 80+ VS, and I have a psu calculator site I used, where it said:
Load Wattage: 368 W
Peak Wattage: 418W
This is the link: https://outervision.com/b/4Ajdp4
Do you think it will run, or will I have to buy another psu?

[pasa]

check if it has the power pins (6+6, 8+6 or 8+8 depending on actual selected card) . If it has, then it's a strectch but suposed to work as long unless your PSU lies about its numbers.

There are different models of 970 around with various OC and heat solutionsm their power taking differs accordingly. I suggest a more conservatve one if you really want to keep that PSU, Btw how old it is? Over 5 years I'd just swap it and have the peaco of mind and full choice freedom.

[tacoshy]

It will be fine. A GTX 970 will be far away from pushing towards 300W in reality. Those calculators calutlate a much higher wattage then you actually will use. A GTX 1080 Ti with an i7 won't even peak into 400W without insane overclocks.

[_I_]

what brand/model psu

but i would not try it

[TehSpoopyKitteh]

I wouldn’t count on a 450 watt PSU being able to handle a GTX970. I would recommend a 600Watt PSU or better with one.

Anyone telling you a 400Watt power supply will be fine should learn the difference between what can be done vs what should be done. The GPU won’t draw “more than x amount” doesn’t account for the power drawn by the rest of the system, and is in no way, efficient.

[Sapph]

VS is horrible power supply model. That alone makes the answer be no.

[tacoshy]

Originally posted by 🎃The Spoopy Kitteh🎃:

I wouldn’t count on a 400 watt PSU being able to handle a GTX970. I would recommend a 600Watt PSU or better with one.

Anyone telling you a 400Watt power supply will be fine should learn the difference between what can be done vs what should be done. The GPU won’t draw “more than x amount” doesn’t account for the power drawn by the rest of the system, and is in no way, efficient.

the GPU itself cant draw phycically 200W. And 200W will nto even be drawn with a that GPU. IF an i7 + GTX 1080 Ti cant even draw 400W then a 970 will eb fare away from it.
So 400W itself is just fine. That a VS 450W PSU is low quality, is a whole different story. The watatge alone by counting in all facts is more then sufficient and even gives good headroom.

I hardly believe I need to elarn the difference about what can be done vs what should be done, but you should tke monky offer for a free wattmeter and start emasuring yourself what a PC actually draws. It is far below what you imagine.
Beside of that, most prebuilds that offer a GTX 970 have onyl 450W or even lower as PSU and they prove every day that is is enough wattage. Still if it comes to PSU quality it is a different story.

[TehSpoopyKitteh]

Originally posted by tacoshy:

Originally posted by 🎃The Spoopy Kitteh🎃:

I wouldn’t count on a 400 watt PSU being able to handle a GTX970. I would recommend a 600Watt PSU or better with one.

Anyone telling you a 400Watt power supply will be fine should learn the difference between what can be done vs what should be done. The GPU won’t draw “more than x amount” doesn’t account for the power drawn by the rest of the system, and is in no way, efficient.

the GPU itself cant draw phycically 200W. And 200W will nto even be drawn with a that GPU. IF an i7 + GTX 1080 Ti cant even draw 400W then a 970 will eb fare away from it.
So 400W itself is just fine. That a VS 450W PSU is low quality, is a whole different story. The watatge alone by counting in all facts is more then sufficient and even gives good headroom.

I hardly believe I need to elarn the difference about what can be done vs what should be done, but you should tke monky offer for a free wattmeter and start emasuring yourself what a PC actually draws. It is far below what you imagine.
Beside of that, most prebuilds that offer a GTX 970 have onyl 450W or even lower as PSU and they prove every day that is is enough wattage. Still if it comes to PSU quality it is a different story.

Again....while tecnically correct about what can be done, you are misleading people by saying it should be done or that it is fine. You should never use more than 60% of the capacity of the PSU on your PC on any load....that is without any question. Do you own a GTX970 and a Core i7 k series CPU (assuming the OP has them both)? Have you tested the longterm affects these calcualtion have tyaken into account while using GPU Boost clocks upware of 1403MHz?

If the OP is having a problem with the PSU on the prebuilt they mentioned, and it is a 450Watt PSU, why advise them to get another 450 WAtt PSU?


Here's the thing about using metering tools that you use to calcualte yoour measurements. It is measuring the power draw when it is NOT on a full capacity load. That is why you get such low readings compared to what manufacturers say. This is because of power svaings featrues built into most modern motherboards that only use what they need given a load.

[tacoshy]

where to I tell that he should do it? I just say that the wattage is fine. Where do I advice to byu another 450W PSU?

Where and how is it recommended to use a PSU to max of 60%? That is BS.

Where does the OP say that eh has problems with a 450W PSU? He is askign if he really needs to buy a new PSU to be able to run the GPU wattage wise. You have to elarn tor ead correctly and no intrepid somethign by 2-3 words which is completly off the things that are actually asked.

I had a GTX 970 and I emasure the pwoer suage in PC I build to be able to garuntee that they run fine for at least 2 years which is within the warranty time I have to offer by law.
I emasure pwoer suage in insane cirumstances liek Prime 95 which is way beyond normal power usage. An as matter fo fact I had a GTX 1080 Ti runnign at 2025MHz and an i7-7700K with 1.465V at 5.5GHz running for 24h at prime 95 and it didnt peaked a single time into 400W. Came closely with 390W but not into 400W.

[TehSpoopyKitteh]

Originally posted by tacoshy:

where to I tell that he should do it? I just say that the wattage is fine. Where do I advice to byu another 450W PSU?

Where and how is it recommended to use a PSU to max of 60%? That is BS.

Where does the OP say that eh has problems with a 450W PSU? He is askign if he really needs to buy a new PSU to be able to run the GPU wattage wise. You have to elarn tor ead correctly and no intrepid somethign by 2-3 words which is completly off the things that are actually asked.

I had a GTX 970 and I emasure the pwoer suage in PC I build to be able to garuntee that they run fine for at least 2 years which is within the warranty time I have to offer by law.
I emasure pwoer suage in insane cirumstances liek Prime 95 which is way beyond normal power usage. An as matter fo fact I had a GTX 1080 Ti runnign at 2025MHz and an i7-7700K with 1.465V at 5.5GHz running for 24h at prime 95 and it didnt peaked a single time into 400W. Came closely with 390W but not into 400W.

“Wattage is fine” is the same as “you should do that”. That strategy works fine for office desktops because there isn’t much gaming going on. However, since we are talking about a gaming level PC, it’s sort of a bad idea due to how the components draw power.

[tacoshy]

Originally posted by 🎃The Spoopy Kitteh🎃:

“Wattage is fine” is the same as “you should do that”.

ok if wattage is sufficient = recommendation to do that you really stop try to itnrepid stuff. If he can do it doesnt mean he should do it.
If I say that a Ferrari can drive 300KM/h that this is correct and does not eman that a person should try to drive 300KM/h on an US highway.

As for PSU, the statement is correct. It is sufficient and fine. Every pre-Build does it and it does not break down after years. In fact most prebuild users, use their PC just fine for years.
If he should keep using the low quality PSU to be less of a risk then normal prebuilds wasnt asked. And ppl ahve a tendency of overaxragting PSU qualities. If you buy a new PSU anyway go for a good quality. If you have a bad quality PSu and no need to actually swap in and being on budget, then yes it is mroe risky but nowhere close that you will die if you not swap it. The majority (easily mroe then 95%) of prebuild users never has issues with their PSU.

[TehSpoopyKitteh]

Originally posted by tacoshy:

Originally posted by 🎃The Spoopy Kitteh🎃:

“Wattage is fine” is the same as “you should do that”.

ok if wattage is sufficient = recommendation to do that you really stop try to itnrepid stuff. If he can do it doesnt mean he should do it.
If I say that a Ferrari can drive 300KM/h that this is correct and does not eman that a person should try to drive 300KM/h on an US highway.

As for PSU, the statement is correct. It is sufficient and fine. Every pre-Build does it and it does not break down after years. In fact most prebuild users, use their PC just fine for years.
If he should keep using the low quality PSU to be less of a risk then normal prebuilds wasnt asked. And ppl ahve a tendency of overaxragting PSU qualities. If you buy a new PSU anyway go for a good quality. If you have a bad quality PSu and no need to actually swap in and being on budget, then yes it is mroe risky but nowhere close that you will die if you not swap it. The majority (easily mroe then 95%) of prebuild users never has issues with their PSU.

A PC meets the bare minimum requirement spec for a game, does that make it playable?

[tacoshy]

Originally posted by 🎃The Spoopy Kitteh🎃:

A PC meets the bare minimum requirement spec for a game, does that make it playable?

what ahs that to do with the sisue at hand? do you know the meaning og minimum requirement? I hardly doubt that.

[TehSpoopyKitteh]

Originally posted by tacoshy:

Originally posted by 🎃The Spoopy Kitteh🎃:

A PC meets the bare minimum requirement spec for a game, does that make it playable?

what ahs that to do with the sisue at hand? do you know the meaning og minimum requirement? I hardly doubt that.

"Wattage ratings on power supplies can be deceptive as this is the total combined wattage of all the voltage lines and generally under peak rather than sustained loads. With the increased demands by components, the total required output particularly for the +12V line has become increasingly important especially for those that are using dedicated graphics cards. Ideally, a power supply should have at least 18A on the +12V line(s). The actual load you need will vary depending on your components. If you are not planning on using a graphics card, a 300 Watt power supply is probably sufficient, but if you are running one or more graphics cards, be sure to check out the manufacturer's recommended PSU wattage."

Source:
https://www.lifewire.com/pc-power-supply-buyers-guide-832374

[tacoshy]

Originally posted by 🎃The Spoopy Kitteh🎃:

Originally posted by tacoshy:

what ahs that to do with the sisue at hand? do you know the meaning og minimum requirement? I hardly doubt that.

"Wattage ratings on power supplies can be deceptive as this is the total combined wattage of all the voltage lines and generally under peak rather than sustained loads. With the increased demands by components, the total required output particularly for the +12V line has become increasingly important especially for those that are using dedicated graphics cards. Ideally, a power supply should have at least 18A on the +12V line(s). The actual load you need will vary depending on your components. If you are not planning on using a graphics card, a 300 Watt power supply is probably sufficient [/i]but if you are running one or more graphics cards, be sure to check out the manufacturer's recommended PSU wattage[/i]."

Source:
https://www.lifewire.com/pc-power-supply-buyers-guide-832374

nice then you qoute websites, but did you udnerstand what you quoted and what it actually means? I doubt that. Do you know why they mention ampere?
And every 450W PSu can delievr at least 450W. Most can deliver more. Its called garuntee line. A Manufacturer garuntees that a Unit delievrs 450W while it actually could delievr 500W or more. But as he needs to garuntee it, they skae a lwoer number to be on the safe side.

Beside of that the VS 450W has 34 Ampere on the 12V rail which is more then your migacal 18 you quoted:
https://www.game-debate.com/psu/index.php?ps_id=66&psu=Corsair%20VS450

[Sapph]

Yeah, wattage, ampere and all that is perfectly fine. Problem is the quality of those VS units.
They are pretty much garbage.