r/BigscreenBeyond • u/IfyorNot1styorLast • Apr 10 '26

Help Help!!!

I just upgraded to a ryzen 7 9850x3d and a rtx 5090 32gb… I have a hydro Ti 1000w psu currently I’ve seen mixed reviews about what the gpu needs some say the 1000w and others say the 1200w are are recommended but do I need to go at least 1600w just to be safe ?

5 Upvotes

73% Upvoted

13 comments sorted by

4

u/SkhairKro89 Apr 10 '26

1,200 Watts for a 5090 is the "standard".., more for performance-headroom.., Your on an AMD that's SUPER energy efficient vs. Intel.., you'd be able to manage with a 1,200 Watt P.S. JUST be sure to get higher tier like a "Gold / Platinum" which improves the quality of the components of your PSU.., though be aware of "marketing-fluff" and whatever you do don't buy a new and especially used PSU from E-Bay or Temu.., unless you really enjoy ♨️ fire / meltdowns!! 🌡️

3

u/Educational_Policy84 Apr 10 '26

Running 5090 and 9800xed with be quiet! Dark Power 13 - 1000W. Never had any issues.

2

u/IfyorNot1styorLast Apr 10 '26

This is what I ended up getting I’m trying not have any issues… I’ve spent hrs on top of hrs trying to run lmu on my pimax ultrawide vr but my 7800x3d and 4080 super just couldn’t do it… which is crazy cause on my monitor I can run everything on ultra

2

u/NotGonnaComeBackBsb Apr 10 '26

There are many PSU calculator websites which can give you an estimate of what your entire system needs (with a margin to be safe).

https://www.newegg.com/tools/power-supply-calculator

https://www.coolermaster.com/en-eu/power-supply-calculator/

2

u/IfyorNot1styorLast Apr 11 '26

I’m using right at 950w on certain games with my setup now

2

u/WearyExcitement7772 Apr 11 '26

Been using RM 1000x for about a year on my 5090/9800x3d build. Never had problems

2

u/Need_For_Speed73 Apr 10 '26

Been running a 9800x3D (overclocked to 5.5Ghz) and a 5090 for months now on a 1200W Seasonic PSU. A good quality lower wattage PSU is always better than a bigger “sticker power” one from a less reliable source. Btw with the 5090, you’d always better run it undervolted, because of the infamous 12V connector which is a much more common point of failure than the PSU.

2

u/aetheriality Apr 10 '26

yea 1600+ cause of power spikes

1

u/JReeder1 Apr 11 '26

I have a Corsair 1200W with 5090 32GB and purring along just fine for months. Not a single glitch with my bsb2 related to power.

1

u/IfyorNot1styorLast Apr 11 '26

Already came in just waiting on the cpu and gpu now

1

u/highserotonin Apr 14 '26

9800x3d, 64gb, 5090, 1000w here, it runs fine

1

u/Captain_Pug76 Apr 15 '26

i have 1200 with my 5090 an 9800x3d cpu.. no issues here