Will seasonic s12II 620W be powerful enough?

mark3nt

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Oct 13, 2015
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Hello, I just recently finished building my computer although it's still missing a gpu, but i have a good idea of what im planning to use. I was confident that this psu will be enough for my build it has very good reviews from many people that's the main reason i bought it but now i am having second thoughts and figured I will ask you till i still can get a refund.

Here is my build:
CPU: i5 6600k (will be overclocking this guy)
Cooler: Maelstrom 240T
Motherboard: ASUS Z170-A
RAM: DDR4 Crucial Ballistix Sport 2x8GB 2144
SSD: Samsung EVO 850 250GB
HDD: 1TB (will be added later on, therefor manufacturer not specified)
Case fans: 4x140mm
GPU(most likely will be buying one of these): MSI R9 390, MSI R9 390X or RX480(not reference one) would also like to overclock it a little bit

I tried using couple of those calculators which should tell me what kind of power supply would be sufficient enough. And those calculators shows two different things which got me confused. http://outervision.com/b/eppYAx This link should take you to result I got from one of calculators and there is written load wattage 600W, but in table it says 563W and amperage 46.9A. This PSU that I have installed, has total output of 620W, combined load on 12V rail 574W and amperage 48 A.
This makes me think that, when i get gpu and overclock it also cpu, my PSU will be working on its maximal potential which is not good for its lifespan. And to clear my mind I am asking your HELP in telling me am i safe with this PSU or should try getting a more powerful one. If the answer is yes, I need more powerful one, then maybe it is possible for you to check this online shop, which offer pretty much all that is possible to get hands on in my country and it is preferable that price would not exceed 100 € if possible. If not I may consider paying more.


EDIT: don't know how I missed that but, on the box it says "12V COMB. 48A" and on the PSU label it says 12V1 24A 12V2 24A, so i suppose this PSU will not be able to deliver 48 amps, which is almost pretty much what i need. Correct me if Im wrong.
 
Solution
Personally , I would want a little higher quality.

http://www.1a.lt/kompiuteriu_komponentai_tinklo_produktai/korpusas_ir_ausinimas/maitinimo_blokai/corsair_rmx_series_rm650x

bignastyid

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mark3nt

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When I was deciding between these two I decided to go with S12, because it was cheaper(more money on gpu) and 100% sure that I wont lose any cables :D. I didn't found info before regarding C states, actually this is my first time hearing of them. But do i really have to disable c5/6 power states, considering that this is not Haswell, but Skylake based processor? Or I just didn't get something of what you were trying to say?
 

mark3nt

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I will certainly going to inspect my mobo bios to see what is enabled and disabled.
Also, I noticed one thing just now about my psu, on the box it says it can deliver 48A on 12V COMB., on the PSU label it shows that it has two 12V rails each delivering 24A. I read something that combined amperage of these rails might not actually be 48A it most likely will be less, so knowing that I still be safe with this power supply for this overclocking build? :)
 

mark3nt

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What would you say about these two http://www.skytech.lt/m12ii750-seasonic-m12ii-bronze-750-750w-plus-bronze-retail-p-135244.html and http://www.skytech.lt/g650-seasonic-g650-650w-plus-gold-active-pfc-p-204217.html. Are they worth considering even if they are ~10€ more expensive than the one you mentioned? Plus the one you mentioned has scoring of 8.7 while other two have higher scores. And does it really worth spending 40-50€ more on psu even for those extra 30W. Having in mind that the one i have right now cost me ~70€.
 

mark3nt

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Oct 13, 2015
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Thank you for your recommendation, I was going to buy this one, but unfortunately I'm no longer able to get a refund on my PSU, so I hope it will do its job properly with less overclocking than I was planning to do. :)