Is this PSU going to be enough for my configuration?

Zarax · 25 Apr 2023 at 09:29

850W be quiet! Pure Power 12 M (BN344) ATX 3.0

I'm planning to use it with:

- i7 13700k
- 64GB RAM
- RX 6950XT
- 1 SSD
- 1 HDD
- Noctua NHD15
- Corsaid 5000D case with default fan config

Am I safe with 850W or should I consider a 1000W PSU?

Thank you!

mickyflinn · 25 Apr 2023 at 11:30

1000w is what I would get to allow for the GPU power spikes, 850w may be fine but if it trips your psu you would be gutted you didn't cover yourself by getting a 1000w psu.

DavidTJ · 25 Apr 2023 at 12:22

Should be fine, though your close to the upper limit, hence the suggestion above to go for 1000w

Tetras · 25 Apr 2023 at 20:04

If you already have the PSU, then I'd give it a go. ATX 3.0 PSUs are supposed to be able to handle the spikes of modern cards.

Zarax · 26 Apr 2023 at 11:51

1000w ATX 3.0 is not going to be cheap but better safe than sorry I guess.

Thank you!

jigger · 19 May 2023 at 12:17

It looks like a 12v split rail design with 36 and 40amps which should be plenty as long the loads are balanced. CPU power 12v1 and GPU power from 12v2

turbot1984 · 19 May 2023 at 12:23

Zarax said:
Am I safe with 850W or should I consider a 1000W PSU?

Go to go with that psu, power spikes below

Zarax · 19 May 2023 at 12:37

turbot1984 said:
Go to go with that psu, power spikes below

Which is that?

turbot1984 · 19 May 2023 at 13:40

Zarax said:
Which is that?

yeah fine with 850W be quiet! Pure Power 12 M (BN344) ATX 3.0

Drumroll · 20 May 2023 at 13:35

Should be fine.
Even with spikes, I had no issues with a 750W EVGA PSU and the infamous 3090.
The true is that while my 750W was ok with spikes, some 850W won’t.
I would give it a try. The worst scenario will get random crashes. Is not like it is a rubbish PSU which will take the whole system down with it.

Troezar · 20 May 2023 at 21:48

I moved my 750W into my second PC and bought a Corsair RMx1000 for my 6950XT gaming PC. Seemed to make sense to have a little extra capacity.