Is 400w PSU enough for RX 460 Nitro?

hulkachan

Prominent
Mar 10, 2017
15
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510
Specs:
CPU: AMD A10 7700K (3.0GHz)
PSU: EVGA 400W
Currently using an R7 250 as a GPU.
I ordered a RX 460 Nitro which requires a 6 pin connector and my PSU came with two, can i use it on my PSU?
Also will RGB lights draw alot of power?
My build is something like this https://pcpartpicker.com/list/KPFB9W
 
Solution
Your A10-7700K at 3.4 GHz will draw 110W power (up to 164W if OC'd to 4.3GHz).

The RX 460 Nitro, having a 6-pin power connection, can theoretically draw up to 150W (75W from the PCIex16 and 75W from the 6-pin), but not necessarily use all that power.

RGB LED lights in PC's draw relatively minimal power.

So, you'd be looking at an estimated ~260W up to ~314W (OC'd) power draw at the +12V rail (~22A to ~27A).

Your EVGA 400W PSU is not the best out there in terms of quality, reliability, efficiency, and warranty (25*C rated temp, OEM by HEC, less than 80% efficiency, only 2-year warranty, non-modular). But providing 30A current at its single +12V rail (max. of 360W), the power it can provide should be...
Your A10-7700K at 3.4 GHz will draw 110W power (up to 164W if OC'd to 4.3GHz).

The RX 460 Nitro, having a 6-pin power connection, can theoretically draw up to 150W (75W from the PCIex16 and 75W from the 6-pin), but not necessarily use all that power.

RGB LED lights in PC's draw relatively minimal power.

So, you'd be looking at an estimated ~260W up to ~314W (OC'd) power draw at the +12V rail (~22A to ~27A).

Your EVGA 400W PSU is not the best out there in terms of quality, reliability, efficiency, and warranty (25*C rated temp, OEM by HEC, less than 80% efficiency, only 2-year warranty, non-modular). But providing 30A current at its single +12V rail (max. of 360W), the power it can provide should be *just enough* (but the PSU model you have is not highly recommended).

 
Solution

I see, does it help in anyway that im using this motherboard? https://www.amazon.com/MSI-Micro-Motherboard-A68HM-E33-V2/dp/B00XI4NQBK/ref=sr_1_1?s=pc&ie=UTF8&qid=1489172805&sr=1-1&keywords=msi+fm2+motherboard
i told the guy at Micro center i wanted 450w but he picked up 400w instead.

 


Motherboards draw very minimal power (if at all). They convey power through the different sockets, headers, and connectors, though.

If you don't have the budget, your EVGA 400W PSU (though not the best in quality) should suffice but I won't push for OC'ing the CPU or GPU to be safe.

When you have enough budget, for safety and stability (and warranty), a good-quality PSU should be a better fit. 450W is more than enough.
 
I think that setup is fine for normal use, since the 460 won't pull anywhere near 150W in real world use. However I will also agree that this is not an overclocking setup. You don't pick just enough of a power supply if you intend to overclock things. Ideally you would have told the guy that you intended to overclock if that was in your plans, I assume he advised you of what you need for a standard system. In that sense, his advice was good.
 

I understand, hopefully it would be enough for it. would an EVGA 500w be good as an upgrade for this current PSU?
 


I overclocked it a few days ago but i set it back to normal. Its running dual graphics mode with the R7 250.
 


Added it to my list on amazon, hopefully all goes well when the 460 gets here.