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What power supply wattage is needed for my build?

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August 10, 2014 1:49:29 PM

CPU: Intel Pentium G3220
MOBO: MSI H81M-P33
RAM: Kingston HyperX Fury 1333 MHz
HDD: Seagate Barracude 1 TB
GPU: Sapphire R7 260x 2 GB GDDR5
1 DVD Writer and 3 fans.

Basically, I think a 450 watt power supply will be enough but I'm not entirely sure. With the PCPartPicker setup, I've estimated a wattage value of around 145-150 watts without the GPU under regular load and full load. And that is my main concern. How much will watts will it draw under full load and if It's needed I'll get a 500 watt power supply.
Right now, I'm going for the XFX Pro Series 450w PSU. I'll also take recommendations if the wattage is not enough.

More about : power supply wattage needed build

August 10, 2014 2:16:02 PM

Tom_Taplin said:
You can check it here...
http://www.coolermaster.outervision.com/
Hope I helped


Can't open the link. Thanks though. But different calculators say different things. An Asus one says 400w minimum, a MSI says 300w minimum and I don't know which one exactly to trust.
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a c 146 ) Power supply
a c 91 à CPUs
August 10, 2014 2:19:37 PM

You are right in your assumption that a 450W is enough.
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August 10, 2014 2:20:53 PM

jimthenagual said:
You are right in your assumption that a 450W is enough.


Alright! I guess I'm pulling the trigger on the build. Thank you, sir!
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a b ) Power supply
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August 10, 2014 2:22:38 PM

450Watt works... but not for the GPU. I almost bought that exact graphics card and after some quick looking around I found that they claim it needs a minimum power supply unit of 500Watts (Doesn't use that much). I later went with a 750ti because it used less power and seemed like a good card. Anyways, I've been told that the r7 260x doesn't actually need a 500Watt PSU, but their official website claims it does.
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a c 146 ) Power supply
a c 91 à CPUs
August 10, 2014 2:25:44 PM

Most of the time the listed requirements are listed a little high just to be safe, as a lot of people buy cheap PSUs that can not put out the listed wattage.

The 450W XFX he is looking at will power that system very well. It is made by Seasonic, arguably the best psu maker in the industry.

Here are some really good PSU requirement lists
http://www.realhardtechx.com/index_archivos/Page362.htm
https://forum-en.msi.com/faq/article/power-requirements...
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a b ) Power supply
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August 10, 2014 2:28:27 PM

"Most of the time"

I'm also almost sure, but cannot gaurantee that it will work. Perhaps the OP may want to do some additional research and check out peoples specs that use that GPU and see what size PSU's they are using.
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August 10, 2014 2:33:16 PM

Wizard Bear said:
"Most of the time"

I'm also almost sure, but cannot gaurantee that it will work. Perhaps the OP may want to do some additional research and check out peoples specs that use that GPU and see what size PSU's they are using.




Well, If the GTX 750 Ti has less power consumption and as long as there isn't bottlenecking between it and the CPU, I can spend some more bucks and get that one instead even though it's going a bit out of my budget. As for the r7 260x, a few articles and reviews stated that the maximum power consumption during full load is around 285-295 which is perfect for the XFX 450w PSU as it is just enough with 10-15 watts to spare. But maybe just to be safe, I can get a different 500watt power supply.
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a b ) Power supply
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August 10, 2014 4:47:10 PM

Again, I'm just helping you become aware of this. I'm not saying the PSU won't work, I'm just saying that it's a good idea to do some additional research (Which it seems you have done). I actually just bought the EVGA 750ti but it's still shipping to me, so I can't give you any personal experience with the card right now.

Go for the Sapphire if you want, keep in mind the possible chance of returning PSU/GPU... some places like new egg have restocking fee's that cost a certain percentage of the original price. Oh yeah, and good luck with your computer!
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August 11, 2014 7:40:00 AM

Wizard Bear said:
Again, I'm just helping you become aware of this. I'm not saying the PSU won't work, I'm just saying that it's a good idea to do some additional research (Which it seems you have done). I actually just bought the EVGA 750ti but it's still shipping to me, so I can't give you any personal experience with the card right now.

Go for the Sapphire if you want, keep in mind the possible chance of returning PSU/GPU... some places like new egg have restocking fee's that cost a certain percentage of the original price. Oh yeah, and good luck with your computer!


Well, actually, I'm not working with Newegg, NCIX, etc, as I don't live in America. I'm still ordering from a good website with great return policies. I have experience with them and I trust them. I'll just go with the flow getting the Sapphire and the XFX power supply. Thanks!
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a b ) Power supply
a b à CPUs
August 11, 2014 6:30:36 PM

BGeorgiev said:
Wizard Bear said:
Again, I'm just helping you become aware of this. I'm not saying the PSU won't work, I'm just saying that it's a good idea to do some additional research (Which it seems you have done). I actually just bought the EVGA 750ti but it's still shipping to me, so I can't give you any personal experience with the card right now.

Go for the Sapphire if you want, keep in mind the possible chance of returning PSU/GPU... some places like new egg have restocking fee's that cost a certain percentage of the original price. Oh yeah, and good luck with your computer!


Well, actually, I'm not working with Newegg, NCIX, etc, as I don't live in America. I'm still ordering from a good website with great return policies. I have experience with them and I trust them. I'll just go with the flow getting the Sapphire and the XFX power supply. Thanks!


No problem, and again, good luck with your build! Be sure to update us with news on how it went.
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