[SOLVED] Do I need a 1000w psu or will my 850w do?

[pmjm]

Hi all,

I'm building a new system. I already have an 850w psu new in the box that was gifted to me. But I'm worried it won't be enough. Here's what I'm looking at:

• Threadripper 3970x
• 128 GB 3733 ram
• Nvidia 2080TI
• 6 pcie4 m.2 SSD's
• 2 SATA SSD's
• 2 SATA HDD's
• Elgato 4K60Pro Capture Card
• 6 or 7 USB devices
• 4 Case Fans + CPU fan

I've tried using a few of the online psu calculators but a lot of this hardware is so new it hasn't been listed.

Do you think my 850w will be able to hold up under load? Or do I need to spend the money on a 1000w psu?

Thanks in advance.

 

[MrN1ce9uy]

What is the exact model of the 850W PSU?

 

[pmjm]

Corsair RM850x.

 

[MrN1ce9uy]

That 850W PSU is an excellent PSU and would be enough to safely power that system at full load. You will likely be somewhere around 700-800W usage at full load. Not exactly optimal for an 850W PSU, but as I said that is an excellent PSU with a relatively linear efficiency curve and that PSU can handle more than 850W output. I might lean more towards a 1000W or even a 1200W PSU though sooner or later.

Corsair RM850x (2018) PSU Review - KitGuru

The major difference between the older RM850x and its successor is the shorter, by 20mm, depth of th

www.kitguru.net

 

[pmjm]

Thank you for your reply. I'll stick with what I have and upgrade if I ever increase the peripherals on the system.