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General Advice on what PSU to get for this setup:

Hi,

 

I haven't upgraded my machine in ~5 years, so I'm researching a new setup.  Can you tell me if I'm way off-base here, and/or what power supply to get for my situation?

 

Setup

  • CPU - Core i5-12400F
  • CPU Cooler - Cooler Master Hyper 212 
  • Motherboard - MSI PRO Z690-A
  • Memory - Kingston FURY Beast 2 x 16GB DDR5-4800
  • Hard Drive - Wester Digital Black SN770 1 TB
  • Video Card - GeForce RTX 3070

Requirements

  • I'm trying to stay under $100
  • PCPartPicker estimates 436W for this setup, and it's my understanding that I should aim for my PSU to be around twice my usage, so I figure I should go with an 850W PSU.
  • My current machine has a Gold 80+ PSU, should I aim for Gold here?  Higher?  Lower?  edit: I understand the rating is for the efficiency and not quality, my question isn't "what does Gold mean", it's "should I use gold efficiency here, or something else?"

 

Do these requirements sound reasonable?  What PSUs do you recommend to fit these requirements?

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4 minutes ago, AlabasterFilth said:

Hi,

 

I haven't upgraded my machine in ~5 years, so I'm researching a new setup.  Can you tell me if I'm way off-base here, and/or what power supply to get for my situation?

 

Setup

  • CPU - Core i5-12400F
  • CPU Cooler - Cooler Master Hyper 212 
  • Motherboard - MSI PRO Z690-A
  • Memory - Kingston FURY Beast 2 x 16GB DDR5-4800
  • Hard Drive - Wester Digital Black SN770 1 TB
  • Video Card - GeForce RTX 3070

Requirements

  • I'm trying to stay under $100
  • PCPartPicker estimates 436W for this setup, and it's my understanding that I should aim for my PSU to be around twice my usage, so I figure I should go with an 850W PSU.
  • My current machine has a Gold 80+ PSU, should I aim for Gold here?  Higher?  Lower?

 

I'd say 750w or above will be enough.

Rating doesn't really matter much, it's mainly only about how efficient it is when drawing power and converting it.
What matters most is the build quality, components used in it.

I don't know what brand and/or model of your PSU, so I can't say much.
But if it still works fine, then feel free to use it I guess.

There is approximately 99% chance I edited my post

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3 minutes ago, AlabasterFilth said:
  • PCPartPicker estimates 436W for this setup, and it's my understanding that I should aim for my PSU to be around twice my usage, so I figure I should go with an 850W PSU.
  • My current machine has a Gold 80+ PSU, should I aim for Gold here?  Higher?  Lower?

You do not need a 850W for a 436W set up.  The "twice my usage" is antiquated thinking.

Also, "Gold 80+" refers to an efficiency level of "80 PLUS Gold" which has nothing to do with quality.

 

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IMHO, a 15-20% leeway is more than enough.
I gave out "750w" just so you have a ton of leeway for whatever else that you didn't or haven't listed. AIO, fans, RGB, another SSD, etc.
Or when you opt to OC.

If you are buying a new one, get one from a brand and model that has good rep.


Even cheap unknown aliexpress PSU is gold rated nowadays.
Even gigabyte's exploding PSU was gold rated.

There is approximately 99% chance I edited my post

Refresh before you reply

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