What PSU should i choose

nadrian3k

New member
Hey there guys,

  • I recently got myself a 5820K + Asus X99-A + 16GB DDR4 2400 upgrade with H100i cooling and 2 extra 140mm front case vents (total 4 vents)
  • I kept my previous GPU which is an ATI Sapphire 7970 Vapor-X ghz edition 3gb gddr5
  • The PSU i have now is a 5 year old Enermax that pushes 1080W silver.

I was thinking of upgrading my PSU to a corsair HX750i because of the cable management, cable esthetics, overall consumption and awesome reviews it got globally.

In the future i plan to change my current GPU with a Geforce 980 which, from what i've read, recommands i have a min 500W power supply. I also plan on OC-ing my CPU. (stock from what i've read runs at 140W)

My question for you lovely ppl who most likely have more experience then me here, is HX750i enough to get the most out of my rig without any issues or should i push for HX850i (W) PSU in order to max out without any chance of overloading the PSU?


  • I would go for the 1000W but it goes over the budget i have planned + i think that one is intended for SLI/Crossfire configurations.
  • I do not plan on making any SLI or Crossfire configurations. I will always be a "1 GPU board guy"
  • I might also add an ASUS Xonar Essence ST or STX II audio board in the far future, being an audio junkey.

Thank you very much in advance for your help. It's greatly appreciated :)
 
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The HX750i will be more than plenty for a single GTX 980, possibly two.

Although if you plant o SLI in the future I'd go with the HX850i, so you have a bit more power than needed, and fan will pretty much never spin up.
But as you don't plan to go SLI, even the 750i will be slight overkill so you'll be fine :)
 
Go for the HX750i. I have it and the fan never spins up and it keeps the dustfilter clean :D

Seriously though it is a great psu.
 
Awesome, thank you all for the answers! :) wasn't expecting ppl to answer so fast

Btw, for the 750i/850i users. Does the stock fan make a lot of noise when it's actually spinning at a higher RPM? Should i consider replacing the stock fan with a Noctua to improve it?
 
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I do not know since i never hear mine, but on TTL's review of the hx1000i he did note it is very quiet.

your second idea, DONT do that unless you really want to break that awesome 7 year warranty for no reason. And even then its more likely that when it does spin up to cool itself you probably would hear the gpu spin up first, which will drown out the quiet fan on the psu.
 
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