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how many WATTS (for power supply) should i get for my pc build? HELP ME !

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November 7, 2013 1:47:56 AM

IM GOING TO 3D Animation INDUSTRY .
SO my specs is high, HOW Many WATTS SHOULD I GET for my power supply?
SPECS:
Intel i7-4770k- OverClock at 4.4ghz - cpu
MSI Z87-G45 - motherboard
32 GB corsair vengeance 1600 8x4 - memory RAM
AMD Radeon HD 7970 Ghz edition 3gb 384bit GDDR5 OC - GPU
(4 TB HDD) ( 2 TB HDD ),( 256 GB SSD ) - Storage
CORSAIR H100i - CPU water cooler
DVD optical Drive
3 x extra fans for the case.

PLEASE ANSWER thanks! give an allowance for the watts too. might add another stuff thanks !

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November 7, 2013 2:10:28 AM

get a 650W good quality PSU, that has about 50A on the +12V, this will be enough for your current build. get a 850W that has about +12V@70A if you are planning on a second card in the future.
these are two examples: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
or other PSU brand like: Seasonic, Silverstone, Antec, Corsair HX series and Zalman.
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November 7, 2013 3:33:05 AM

Anas Bashar said:
get a 650W good quality PSU, that has about 50A on the +12V, this will be enough for your current build. get a 850W that has about +12V@70A if you are planning on a second card in the future.
these are two examples: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
or other PSU brand like: Seasonic, Silverstone, Antec, Corsair HX series and Zalman.


could tell me more about the Amps and voltage and what do that mean for my build ? thanks
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November 7, 2013 4:00:29 AM

the main concern regarding the PSU is the total power of the PSU, bu there is another essential matter.
GPUs and modern CPUs run on +12V, these two are the main load present on the PSU (+90% of the PSU load is on the +12V rail/portion of the PSU).
so when calculating for the PSU, you need to find how much power will you need from the +12V rail.
for example: you build: your card power is 300W (300W/12V=25A), and your OCed CPU needs about 150W (13A).... this means you will need at least 38A on the +12V rail. add to that few amperes for fans/coolers and other motorized loads, plus give some headroom for the aging effect (outpot power starts to decay with age). thats how i suggested the 50A on the +12Vrail.
adding a second card in the future will add 25A more load on the +12V rail, so a PSU with +12V@70A will be required.
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