PSU to be used alongside 1080

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Taytotom83

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Jul 18, 2013
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Hey there,

I intend to make a new build that includes, among other things, an i5-6600k and a MSI 1080. I've recovered a Corsair CX750m from another build and I was wondering whether such a PSU would be sufficient to keep the setup working properly
 
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It really depends on the purchase date of that CX750.
Pervious generation where low quality with failing capacitors and a 1080 rig will likely not take long to kill it off.
New generation CX750 would be fully adaquete.
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th3p00r

th3p00r

Respectable
Sep 7, 2016
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That's a 750W of power, it's more than sufficient.
I just built one gaming system for my son last week with this PSU overclocked i5 @4.4GHz.
https://www.newegg.com/Product/Product.aspx?Item=N82E16817438106

Sys: ASUS ROG STRIX Z270H || EVGA GeForce GTX 1070 SC GAMING ACX 3.0 Black Edition
|| i5-7600K @ 4.4GHz || G.SKILL Ripjaws V Series 16GB || WD Blue 250GB SSD
|| Cooler Master MLZ-H92M-A26PK-R1 || EVGA 100-N1-0650-L1 650W

 
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raisonjohn

raisonjohn

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Ambassador
Feb 22, 2015
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Though not the best in built and warranty, the CX750M has certainly MORE than ENOUGH juice to power your i5-6600K + GTX 1080 rig.

An i5-6600K has a TDP of 91W, non-OC'd. Pushing OC can reach around ~115W. The MSI GTX 1080 (assuming the Gaming X version), requires 1x 6-pin and 1x 8-pin PCIE power connectors. This theoretically means the GPU is capable (but not necessarily use) of drawing up to 300W of power (75W from the 6-pin + 150W from the 8-pin + 75W from the PCIe x16 slot). So, CPU + GPU = ~115W + 300W = ~415W draw at +12V, OC'd.

Add other components such as RAM, HDD, SSD, Fans, and considerable headroom, say, ~100W more. Then you'd be looking at ~515W (or ~43A) max/peak draw at +12V with your setup.

The CX750M has enough 6/8-pin connectors (it has 4x) to power the GPU. The PSU provides 62A (or 744W) at +12V rail. That's just using less than 70% at peak loads of what the PSU can provide.

It is sufficient.
 
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boosted1g

Titan
Jun 12, 2013
14,846
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The N1 is the lowest quality unit EVGA makes, would not recommend that at all.

For something like a 1080 I would recommend G2/G3/GS serries of EVGA or G serries Seasonic. Both are top notch PSUs. If you are doing stock clock on GPU/CPU then 550w is enough, if doing some overclocking then 650w, if runing watercooling pumps and doing heavy overclocking then 750.
 
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Ricecream_

Ricecream_

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Aug 11, 2015
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something like a Corsair RM750 would be ok with it. They aren't that expensive like 139.99 US. They are gold plus certified. 750W is enough power its just the protection rating on your other psu isn't very good and with an 800 gpu I would like you to not have to worry about burning it out. Any gold plus or higher would be good for you.

BTW you`ll love your 1080 so I would advise you protect it.
 
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