[SOLVED] Do I need 750W or 650W PSU?

Apr 23, 2019
3
0
10
0
Hi, I built a system 4 years ago and a few days ago my PSU(Corsair CX750) failed. I need to purchase a new PSU for my system. My friend mentioned that I don't need 750W PSU and added that my system will run very well with 650W PSU.
So here I am asking you experts to guide me please. Which PSU I should buy?

System specifications:-
  • CPU : Intel core i7 4790K
  • CPU Cooler : Corsair Hydro H60
  • Motherboard : Asus Z97-A
  • RAM : Corsair Vengeance 8 GB DDR3 x 4 = 32 GB
  • Storage: 2 SSD + 1 TB 7200 rpm HDD
  • GPU: GTX 970
  • Optical Drive: DVD-RW
  • Monitor : 22inch LED monitor
PC Part Picker Link : https://in.pcpartpicker.com/list/Q3R4zY

I'm from India so I have very limited options to purchase PSU. Your guidance will immensely help me.

Thank you
 

Barty1884

Titan
Moderator
For a 4790K + 970, a quality ~550W range unit would be more than sufficient. If a good quality 650-750W unit is available for similar money, it's not a "bad" choice, but it's not totally necessary.

What kind of budget do you have for a new PSU?

PCPP only pulls from Amazon in India, and these would be the two most affordable, yet good quality units available:
https://in.pcpartpicker.com/products/compare/FdRFf7,z9CD4D/
 
Apr 23, 2019
3
0
10
0
For a 4790K + 970, a quality ~550W range unit would be more than sufficient. If a good quality 650-750W unit is available for similar money, it's not a "bad" choice, but it's not totally necessary.

What kind of budget do you have for a new PSU?

PCPP only pulls from Amazon in India, and these would be the two most affordable, yet good quality units available:
https://in.pcpartpicker.com/products/compare/FdRFf7,z9CD4D/
My budget is $100(INR 7000) because that's what I had paid for Corsair CX750.

The PSUs you have mentioned are within my budget.
If in future I OC my system then will 550W will be suffice?

Also, should I go for 550W 80+ Gold Certified or 600W 80+ certified?
 

Barty1884

Titan
Moderator
Depends on the specific PSUs. Not all "550W" or "600W" units are created equal.

With that kind of budget, I'd opt for the SeaSonic made, Earthwatts Gold Pro 550W I linked earlier.

Your 'stock' load power draw is in the range of 200-250W max. A 550W unit gives you ample headroom for overclocking, yes.
 
Reactions: Bintu55
Apr 23, 2019
3
0
10
0
Depends on the specific PSUs. Not all "550W" or "600W" units are created equal.

With that kind of budget, I'd opt for the SeaSonic made, Earthwatts Gold Pro 550W I linked earlier.

Your 'stock' load power draw is in the range of 200-250W max. A 550W unit gives you ample headroom for overclocking, yes.
I will purchase that. Thank you for your valuable input.
 

ASK THE COMMUNITY