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How big of a Power Supply (watts) Do I need to run this - Page 2

post #11 of 20
A good 400W supply would power that stuff just fine and give you plenty of headroom. A system based on an APU is very power-efficient.
     
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post #12 of 20
The antec earthwatts 380W comes to mind, they are typically priced very competitively.
     
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post #13 of 20
Quote:
Originally Posted by Chaython View Post

So I am just wondering how many watts (in PSU) do I need to run this

G'day mate,

Checking the A8-3850 review at the Tech Report, their system with a GTX 460 used 145W at peak rendering in Cinebench. You may have different usage patterns and your setup is a little different, but anything more than a 400ish Watt PSU is likely going to be overkill - you'll be running it at fairly low load and it'll be operating in the low parts of it's efficiency curve.
post #14 of 20
150W pico PSU.
post #15 of 20
Quote:
Originally Posted by xd_1771 View Post

150W pico PSU.

lachen.gif
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A pleasant surprise :)
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A pleasant surprise :)
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post #16 of 20

^ Not kidding tongue.gif

The 3870k at 100W TDP and less in actual power consumption will take up no more than that on the 12V rail. All of the other components (i.e. low-power RAM, HDD, fans) will also take up very little power (under 40W).  If 3870k power is ever a concern, the Llano APU chips are known to have very good headroom to undervolt.


Edited by xd_1771 - 8/26/12 at 11:46am
post #17 of 20
Any low power Quality PSU. Make sure you get 2 sticks of ram or your APU will be severely bottlenecked wink.gif
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post #18 of 20
Quote:
Originally Posted by xd_1771 View Post

150W pico PSU.

He overclocks it will blow past this. I've seen 175w at wall from a 3.5ghz oc at around 1.4v doing IBT. Just the apu/mobo/3.5hd and one 120mm fan at lower speeds. Stock, that would be mint, but he said overclock. 300w from a decent PSU would hold up fine, but not give much room for a discrete to crossfire to if thats in the future. otherwise, his stated psu should be perfectly fine. even stacked full of hdds.

Yeroon
post #19 of 20

A good, quality 430W should be enough like the CX430 or even a nice 500W would do fine. You could possibly get away with a quality 350w PSU.

 
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post #20 of 20
I'm running a machine like that on a 200W PSU as an HTPC, non-OC. 350W would be plenty. Get one that's 80+ gold or platinum and complete the power savings.
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