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Old 20-04-17, 09:59 PM
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steverebo steverebo is offline
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New psu choice

Ok my HX750i is buzzing and causing bad coil whine on my 1080ti so I need to replace it urgently. Having a bit of a budget my choices are:

Corsair RM850X
Corsair HX760x relacement
Used (on Amazon warehouse) AX860

I have no interest in corsair link it's just more bloatware and extra cables to me

Anyone give advice on which I should choose

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Old 20-04-17, 10:06 PM
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all 3 are awesome units I'd get the one that fits your budget best and comes the fastest
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Old 20-04-17, 10:17 PM
NeverBackDown NeverBackDown is offline
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You could even get away with an RM650X to save some money if the budget is tight
An EVGA Supernova G2 is a good choice as well if you don't want the corsair stuff.
But out the ones you list, the HX760. Probably because it is the cheapest but still great value/quality
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Old 20-04-17, 10:18 PM
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steverebo steverebo is offline
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The RM850x is £120
The HX750i is £135
The used very good condition AX860 is £12

so they are all in my budget I want the one that best prevents coil whine
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Old 20-04-17, 10:26 PM
russler russler is offline
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well then I recommend an rm, 100% silent (use the older rm850 personally)
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Old 20-04-17, 10:29 PM
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never had coil whine with anything so not sure which would be better about solving it.
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  #7  
Old 21-04-17, 02:16 AM
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If you have coil whine on GPU it is not caused by PSU. It will not go away with the new PSU. It usually happens on extremely high FPS like in game menus. Try limiting FPS with V-Sync, G-Sync, or whatever you can get with your monitor. Crank up AA and details so you can drop FPS. Dropping FPS in any way should reduce the coil whine. For PSU RM650X would be bang on for your system. Anything above is bonus. I would recommend going with new PSU. I am never confident with used PSUs. Other components yes, PSU no.
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Old 21-04-17, 02:51 AM
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Kilbane Kilbane is offline
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The RM series is great (I have the RM850i), the silent running makes a huge difference.
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Old 21-04-17, 06:17 AM
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Have a look at the Superflower Leadex II series on OCUK . I have the Leadex Gold 750W in my rig they are excellent PSU'S. 2 years on and i'm still happy I bought it.
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Old 21-04-17, 08:41 AM
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steverebo steverebo is offline
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I've gone for the RM750x, I did look at the superflower leader II but they don't have any braided cables available that retain the caps on them and having custom ones made is out of my budget but the RM series do so ripple suppression will still be good which will give my GPU good clean power.

The reason I think it's my PSU causing the whine is when I RMA'D it YOYO tech said they tested it on their rig for 2 days and it was totally silent which leads me to believe it's my rig causing the problem. I did notice whine coming from my PSU at load so I'm swapping it out getting rid of the cable extensions and going for a full set direct from the PSU so I eliminate any potential cause of the whine.

Coil whine is a real irritation to me when I've spent £750 on a graphics card I expect it to be silent. I run an ASUS swift 144hz monitor so I like to aim my frame rate at 144hz or as close as I can get and don't want to cap my framerate
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