can a 450w psu run a msi GeForce GTX 970

kyle_12

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Oct 13, 2015
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I'm about too buy a MSI GeForce GTX 970 Gaming Edition 4096MB GDDR5 PCI-Express Graphics Card, but i onlt have a 450psu will i need to upgrade my psu or will it be fine if so what would eba a good psu to buy
 
What I like to do is use a calculator like this one...http://coolermaster.outervision.com/ and find something a few hundred Watts more, then reference the PSU tier list from our community listed here...http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

Don't go cheap or with marginal wattage specs with PSU's. Providing clean power to your components is essential. Dirty power can ruin other parts within your system and cause all sorts of troubleshooting nightmares

 

kyle_12

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Oct 13, 2015
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it's SF-450P14XE my bad and the
motherboard: gigabyte Z97-HD3
cpu : Intel Core i5-4690K 3.50GHz
with 8gb of ram but cant remenber the make or speed of it
 


Is this your own or are you talking about some random website?
 
Here is the official specs page for the PSU: http://www.super-flower.com.tw/products_detail.php?class=2&sn=18&ID=106&lang=

It has 37 amps on the 12V rail for 444 watts. With derating properties of semiconductors and with load on the 3.3V and 5V rails, the actual value is going to be lower, probably 415W. Power supplies can usually only reach that peak load if there is no load on the other rails and with low temperatures, and even then it can usually only maintain that peak power draw for a second or so. I would say that the graphics card + the CPU would be something around 350W. I think it could be done. But if it were me, I would buy a better power supply. By "better" I don't mean quality, because Superflower is great, I mean watts in this case. Headroom is good.
 


I saw this result on a Tomshardware article. It was stress testing the R9 390X and compared it to the stress of other cards, a Gigabyte 970 one of those.

It can also be seen on the Tomshardware 970 and 980 review http://www.tomshardware.com/reviews/nvidia-geforce-gtx-980-970-maxwell,3941-13.html
 


A stress test is not the same as a normal load and I have never seen either of my 970's get anywhere near that kind of usage and I have them sitting @95% load 24/7.
 


Mine use about 135w @ pretty full load, just saying.
 


Well that's even better then. I'm just going by the article, which did not have all variants of the card. What one do you have?
 


http://www.techpowerup.com/gpudb/b3053/zotac-gtx-970.html x2.