Corsair CX750 vs FSP 750W

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Jimbo832

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Dec 20, 2013
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I'm looking at these 2 PSU's because I am thinking about cross firing 280x's in the future, and was wondering which of these power supplies you would recommend
 
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capt_taco

capt_taco

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Neither one, those are both junk. Look at the list on this site and try to get one from the top two tiers.
http://www.tomshardware.com/forum/id-1804779/power-supply-unit-tier-list.html

(update: there are a couple FSP models that rate OK, but it sounds like you are going for budget models here, so double- and triple-check; I am skeptical. In any case, avoid the CX series for anything that is going to put a lot of stress on it.)

This is probably the best deal on a quality 750W+ unit going on right now...
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182264
 
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G

GRUxTSAR

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You cannot do it on 650w. 562 for the GPUs alone plus another 100+ for the CPU and another little bit for the other components. Even 750w is cutting pretty close

 
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capt_taco

capt_taco

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They're OK, not great. In other words, they will probably be fine for a budget general-use machine that does not push the PSU much. For a high-performance system, which includes anything with multiple GPUs, you will want something in Tier 1 or 2. CX series also has a reputation for cheap components that are prone to dying after a few years, which you do not want.

In any case, that Capstone unit is better quality than the CX750 and also cheaper right now.





That was full system power consumption, not just the GPUs.
 
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GRUxTSAR

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"The other thing to remember is that our test system is bare minimum - only a SSD hard drive is used with a single CD ROM and minimal cooling fans.

So while the system might draw 400 watts in our test system, placing it into your own PC with a number of other items, the draw is going to be higher."
 
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capt_taco

capt_taco

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You are not going to add 100W+ to that unless you have a lot of extra junk on your system, enough that it would make you think twice. A normal rig will run it on 650W. Plenty of good deals at 750W out there too, though.
 
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