What Power supply would I need for my build?

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Chili 93

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Feb 5, 2014
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10,510
Hello TH Members!

I'm going to buy a new PC, I would like to build it myself. I have found all the parts I would like to have, but I'm having a bit of trouble finding the right PSU.
I was thinking of a 850 Watt power supply - XFX ProSeries Core Edition FW

Parts I'm going to use:
Mobo - ASUS Maximus VI Formula
CPU - i7 4770K
GPU - R9 290X
RAM - Kingston HyperX Beast 1600Mhz (8 GB)
HDD - Western Digital Black (1 TB)

In the future I might add an H100i for watercooling.

Thanks for your time

-Chili
 
Solution
vmN
750w is a huge overkill.
If you dont feel a 520w will be able to support it, get a 600w +80 bronze.
You can then go for full-modular for easier cablemanagement
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Chili 93

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Feb 5, 2014
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10,510


Are you sure? the R9 290X uses about 380 Watt (Under load) max just by itself, then there's CPU as well, fans and I would like to be future proof for the H100i. 520 Watt sounds a bit too little o:
 
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Chili 93

Honorable
Feb 5, 2014
14
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10,510


I would like to stick with the R9 290X, I think it's a good card for the price, also I would like to see how AMD's Mantle API will affect performance. Also, I would hope to have a future proof rig here
 
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vmN

vmN

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Oct 27, 2013
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100%.
 
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Chili 93

Honorable
Feb 5, 2014
14
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10,510

Well I can't help but ask why it so is that I can use only 520 watt when the GPU almost uses 380 watt when under load, cpu on load as well + fans running and possibly an H100i, RAM draws a bit as well, would you be so kind and explain how that is possible? I can't really see how it would work with just 520 watt
Thanks

 
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Chili 93

Honorable
Feb 5, 2014
14
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10,510
Alright, I just checked a site where I added all the stuff I wanted, all the needed components and extras like the H100i and Fans, and it calculated the the needed PSU to have 550 watts, but I still don't get it if the R9 290X can use up to 370-380 watts at peak performance? Another site I tried came with the result of 750 watts.
 
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Chili 93

Honorable
Feb 5, 2014
14
0
10,510


Alright man, thanks a lot for your help!
 
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