Upgrading CX600 to a Modular 750W

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Omnibit

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Oct 7, 2013
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I am looking for one of the best 750W PSUs to upgrade to from my CX600. There's nothing wrong with the CX600 right now, just that I am starting to really use too much power.

I am looking for an ATX 750W modular with 80 Plus Bronze or higher, has to be a good brand. It is going to be going into a HAF 922 case. I already searched for a few and would want to know what your opinion is on these as well.

http://www.amazon.com/Seasonic-M12II-750-BRONZE-Power-Supply/dp/B00607JN1E/ref=sr_1_7?s=pc&ie=UTF8&qid=1395966608&sr=1-7&keywords=psu+750w+modular

http://www.amazon.com/Corsair-Enthusiast-Modular-Bronze-TX750M/dp/B005E98FVS/ref=sr_1_5?s=pc&ie=UTF8&qid=1395966608&sr=1-5&keywords=psu+750w+modular

http://www.amazon.com/SilverStone-ATX12V-EPS12V-Silver-ST75F-P/dp/B00307RM06/ref=cm_cr_pr_product_top

http://www.amazon.com/Corsair-80PLUS-Gold-Certified-Power-Supply/dp/B00EB7UITQ/ref=sr_1_3?s=pc&ie=UTF8&qid=1395966608&sr=1-3&keywords=psu+750w+modular

http://www.amazon.com/XFX-Modular-240-Pin-Certified-P1750XXXB9/dp/B008O50WGA/ref=sr_1_10?s=pc&ie=UTF8&qid=1395966608&sr=1-10&keywords=psu+750w+modular

I am only looking at Amazon right now because I have a gift card to Amazon and am trying to spend less cash, but I am open to other options.

Thanks for your time!
 
Solution
Karadjgne
1. The Seasonic, XFX, Silverstone then CorsairTX, in that order. You couldn't pay me to use a RM 750. They have extremely bad thermals, substandard caps, and a history of failures under load.

2. If you are looking for headroom, at the wattage you are looking at, I'd go ahead and skip the 750's and go for an AX 860i or Seasonic 850, because the next real upgrade from the 600w single gpu you sound like you are running, would be sli or xfire. An AX 860i would handle that upgrade and still leave you your headroom.
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I used an online wattage calculator. The PSU was and is perfectly fine, just when I bought it I had a bit more headroom, and I always like having some headroom for future upgrades.
 
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1. The Seasonic, XFX, Silverstone then CorsairTX, in that order. You couldn't pay me to use a RM 750. They have extremely bad thermals, substandard caps, and a history of failures under load.

2. If you are looking for headroom, at the wattage you are looking at, I'd go ahead and skip the 750's and go for an AX 860i or Seasonic 850, because the next real upgrade from the 600w single gpu you sound like you are running, would be sli or xfire. An AX 860i would handle that upgrade and still leave you your headroom.
 
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Solution


These always WAY over estimate your usage. They do that to avoid problems where people buy on their recommendations and then complain later because they buy a piece of crap power supply that actually mets if it comes near it's rated capacity.

You should get your self a kill-a-watt or something to see what you are actually pulling from the wall. Keep in mind that measured from the wall side you have to take your PSU efficiency in to account to get what it's delivering.

As an example, the Asus recommendation for my own machines says a 600W PSU. The Extreme one is much closer and says 380 watts. My actual measured wattage from the wall is about 302 watts, at 90% efficient that means my machine is actually being delivered about 272 watts... My machine is a 3570k with a GTX670.

That 600 would run an overclocked i7 and a Titan or 780ti just fine. It would do SLI lower range cards just fine too. If it's working well there is very little reason to upgrade unless you were going to go to to be throwing SLI 780's in there or something, but even then why not wait until you buy the video cards and get something at that time.




 
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