Good PSU for i7-4790k and GTX 970 build?

nccrochet

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So I've been lurking around this site for awhile and always looking at other people's questions, but I figured it was finally about time to ask my own. I am starting my first build, and hoping for it to be an awesome gaming build. I've gotten all my components picked out, and I was thinking about the Corsair AX760 for my PSU, but I don't know if I want to spend around 150 on it when I see other PSU's with 750w go for 80-100. I know I want something that is 80+ certified, but I don't know if I would trust bronze certified enough or not. Any suggestions? Or should I stick with the AX760?

Intel Core i7-4790k 4.0GHz
Corsair H100i Cooler
ASUS MAXIMUS HERO VII ATX LGA 1150 MoBo
Corsair Vengeance Pro 8GB (2x4) DDR3-2133 (may add more RAM after the build is complete)
Samsung 840 EVO 250GB
Seagate Barracuda 2TB 3.5" 7200RPM
Gigabyte Geforce GTX 970 4GB WINDFORCE
NZXT H440 (Black/Red)
[possibly] Corsair ax760


Any other input or advice to the build would be phenomenal. I have already purchased the processor, the mobo, and the h100i
The reason I am even starting the build is because I had an opportunity through intel's retail edge program to get the i7-4790k for $114.00 USD, but only had a limited time to purchase that. It should be about a month before it actually ships.


Note: I would like the PSU to be as quiet as possible, considering the silentness of the NZXT H440.
 
Solution


Well, it would be a pain in the arse to do all the cable management twice, but no reason why you can't do it.

The AX760 is probably the best 750W (well, 760W in this case) PSU on the market, right along with the EVGA G2 750W.

Welcome to the forum by the way!

I have the AX760 in this computer I am using now, but I am running two 970s in SLI. Are you thinking of getting 750W just in case at some point down the road you decide to run two GPUs? If not, you can cut down to a high end 500-600W PSU no issues at all.

Assuming you want to stay at 750W, like I said, you can't get better than the AX760W. There are some equals. That said, usually the AX760 is poorly priced and way above what the other equivalent PSUs cost. The EVGA G2 750W being an example.

Efficiency doesn't really matter so much. There are plenty of examples of high end bronze PSUs and poorly made gold PSUs. All high efficiency means is that the PSU doesn't waste energy when it draws from the wall. So a bronze PSU will take more electricity to provide the same amount of watts as a gold PSU would. So theoretically, you should save electricity bills in getting a gold over a bronze. However, it's been documented that you would need to be running your system at full load 24/7 for years in order to get back the money you've spent on getting a gold over a bronze PSU. So it's not really worth worrying about that as much as whether or not the PSU has solid capacitors, or how well done its soldering is, for example.

Great looking build by the way. Really nice choices all around.
 

nccrochet

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From what I understood, a 500w PSU would be sufficient for this build, but at the same time, I was thinking if I ever wanted to add a more powerful GPU/SLI the one that I will have in there later, then maybe I should get some headway.
As well as I may try some slight overclocking, I'm not sure I haven't had too much experience with overclocking yet.

 

Akarin

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That's a great build btw. Well, for PSU, I'd consider brand and model/certification. This AX760 is a really good PSU, but you can also check on a few EVGA and Seasonic PSUs to compare the prices. The certification is related to efficiency, so a higher certification you give you efficiency closer to 100% than others (my gold psu, for example, has a 92% efficiency). About the wattage, depends on your wish to overclock/SLI, or even the price of the PSUs. I got my 1000w because it was cheaper than a 750W at that moment, also because I'll overclock/SLI my build.
 

nccrochet

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It's probable at the end of the day I will end up sticking with the AX760 and fork out the extra 50 bucks. I just want everything to run smoothly for my first build, and probably shouldn't cheap out on the power supply. I really like corsair's stuff, and I am a very picky person when it comes to brand(there is cases where I won't pick a brand simply because I don't like the name of it, such as EVGA, unless of course it is that much better where I do have exceptions).

 


Yep, that's pretty much my philosophy as well. I went the same path as you and spent the extra money on the AX760. Many would disagree on spending so much, and they're right. But I did it anyways just because.

By the way, looks like you are going for a red/black theme I assume? Consider getting the sleeved corsair cables. They're overpriced too, but man do they make the system look nice. This is a picture of my previous computer (not the one in my signature)

DSCN1397_zpsd170e41b.jpg
 

nccrochet

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Yes, I am going for the red and black theme, but considering in the case I'll have the PSU will be covered, it shouldn't be too much of a problem, but I would rather it fit the theme... It would bug me if not. Where can I get myself some of those nice cables?


Also I would like to ask you if you have any complaints about the ax760 or if you can really hear it or not?
 

nccrochet

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Good good.. Do you think there would be any problems with my running with the included cables to begin with then later on just simply switching them out?
 


Well, it would be a pain in the arse to do all the cable management twice, but no reason why you can't do it.

 
Solution

nccrochet

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I accidentally clicked the wrong button, I meant to choose your original post at the solution.

and I see you make a good point there.
 

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