Help for new PSU chose.

KitsuGf

Reputable
Oct 31, 2015
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My rig:

I7-6700k (stock)
16GB Corsair RAM OC 3000mhz with XMP.
MSI 1070 GTX Gaming Z.
2TB 7200rpm
1SSD 500GB
2 FANs 200mm
4 FANs 140mm
1 DVD
Gigabyte Aivia
Logitech g502
Mic Krom Kimu
2 monitors.


My psu 1050HX Corsair Modular after 8 years the fan works very slow and o think this make the rig works not good.

I think with a 650W semi-modular it can be enought, but i cant spent more than 100$, can someone help me what i can chose? I can buy on Amazon.es.

Thanks!
 
Solution
PSUs are most efficient when you don't pin them near 100%. More like 50-80% That's where the efficiency is, the 80+ certification. IIRC, PSUs are tested at 20%, 50% and 80% watt usage.
Your system should hardly ever break 300W.

Basically, practically no modern single-GPU system needs more than 400W unless doing something outrageous with it like having a dozen fans, running a phase-change or thermoelectric cooler, having tons of LED and arc lights, etc.
 


Well i just have 6/7 fans and o forget mention my CPU fan its Cryorig H5 Universal
 

Unless you are running the fans at maximum speed, 10 fans running at 2.5W each is still only 25W total. In most cases, fans can be considered practically negligible.
 


I put my 6 fans at maximum rpm...
 


And what do u think from Thermaltake or Enermax?
 


Yes, they are more than enough. But power supply these days have a lot of extra WATTS left unused. But buying a PSU with higher WATTS will most probably result in less fan sound.

That's a Advantage.
 
I failed to mention it but I was thinking of longevity of the PSU mainly. In that case, sticking to roughly 50% usage is better. Much better than 100%.
I just replaced a 10 year old PSU. Still worked fine, I just wanted better efficiency and modular cables.
It was a 850 W PSU, I used at most 600 W from the wall.