Hammajangd
Ya I’ll just get a 850g3 new egg has in stock right now. Better to be safe. Thanks.

I wanted to be safe a few years ago and got the 1000W G3 even though I know I didn't need it.  If I were in your shoes and I wanted to be safe, I'd go for some extra W.  Neither Intel nor Nvidia have slowed down their demand for W.   The server side for Intel is insane.

AWK16
I haven't paying much attention to this thread, but you guys speaking of certain PSU's and possible issues related to 3xx GPUs.  I just order Seasonic 1300W Platinum, anyone heard or knows issues with that PSU, I don't have the card yet, but I need new PSU anyways.

That PSU will be mega overkill for a 3080.
 
I've got a Corsair AX 850 Titanium (which is a rebadged Seasonic Prime Ultra Titanium) and it runs my 3080 without a problem.

ngaugler

Hammajangd
Ya I’ll just get a 850g3 new egg has in stock right now. Better to be safe. Thanks.

I wanted to be safe a few years ago and got the 1000W G3 even though I know I didn't need it.  If I were in your shoes and I wanted to be safe, I'd go for some extra W.  Neither Intel nor Nvidia have slowed down their demand for W.   The server side for Intel is insane.

Funny, I actually ended up purchasing The 1000w g3 cause I figured better to be higher on the W lol

macktkau

AWK16
I haven't paying much attention to this thread, but you guys speaking of certain PSU's and possible issues related to 3xx GPUs.  I just order Seasonic 1300W Platinum, anyone heard or knows issues with that PSU, I don't have the card yet, but I need new PSU anyways.

That PSU will be mega overkill for a 3080.
 
I've got a Corsair AX 850 Titanium (which is a rebadged Seasonic Prime Ultra Titanium) and it runs my 3080 without a problem.

Its actually for 3090FTW and Titan Black as a dedicated gpu for fp64 performance, so between both I think should be OK

3080 FTW3 Ultra + EVGA 1000 T2
Just replaced Seasonic Prime 750 SSR-750TD 
Wow, the weight and cable thickness are practically doubled. Quality exemplified.
No issues.

Ok. Corsair RM1000x bought. I get it Saturday. I know its overkill, but these shutdowns are killing me. Beyond that, if it keeps happening, I think its a card issue and will have to RMA.

The Seasonic Focus series has both the older FX series and the newer GX series which replaced it (IE: Seasonic Focus GX-850). Is anyone have PC shutdown issues using the newer GX variant?

Here's my PC specs
cpu: ryzen 2700 OC'd to 4ghz at 1.36v
cooler: noctua dh-15
gpu: evga ftw3 ultra rtx 3080 OC'd +125 core clock and +500 mem clock (also ran at factory OC settings with issues)
psu: seasonic focus plus gold 80+ 750w ssr-750fx (purchased in 2019)
 
I loaded up a number of games (mainly destiny 2, control and MS Flight Simulator) and was getting horrid frames around 80fps in destiny 2, 60-70fps ultra with RTX on in Control and 20-40fps in MSFS both running at ultra/max 1440p. This seemed bizarre to me because benchmarks i've seen have been in the 200fps range for destiny 2 (with a 10900k of course) and I find it hard to believe I get less than half the frames with a 2700...
 
Anyways, I did have crashes in haven and MSFS but not full PC reboots/black screens like you all have stated the benchmark and game just crashed. I was able to hit 18400 in timespy GPU score and monitored my gpu power draw via hw monitor and saw it pulled up to 390w but typically ranged from 200-350w.
 
I ended up purchasing a 3rd pcie cable because my PSU only came with 2of them so I currently have been using 2 cables for the 3 plugs on the GPU.
 
I'm just trying to understand if my PSU is the problem, or my CPU really is bottlenecking me that hard, any help is much appreciated!

kymag1c22
Here's my PC specs
cpu: ryzen 2700 OC'd to 4ghz at 1.36v
cooler: noctua dh-15
gpu: evga ftw3 ultra rtx 3080 OC'd +125 core clock and +500 mem clock (also ran at factory OC settings with issues)
psu: seasonic focus plus gold 80+ 750w ssr-750fx (purchased in 2019)
 
I loaded up a number of games (mainly destiny 2, control and MS Flight Simulator) and was getting horrid frames around 80fps in destiny 2, 60-70fps ultra with RTX on in Control and 20-40fps in MSFS both running at ultra/max 1440p. This seemed bizarre to me because benchmarks i've seen have been in the 200fps range for destiny 2 (with a 10900k of course) and I find it hard to believe I get less than half the frames with a 2700...
 
Anyways, I did have crashes in haven and MSFS but not full PC reboots/black screens like you all have stated the benchmark and game just crashed. I was able to hit 18400 in timespy GPU score and monitored my gpu power draw via hw monitor and saw it pulled up to 390w but typically ranged from 200-350w.
 
I ended up purchasing a 3rd pcie cable because my PSU only came with 2of them so I currently have been using 2 cables for the 3 plugs on the GPU.
 
I'm just trying to understand if my PSU is the problem, or my CPU really is bottlenecking me that hard, any help is much appreciated!

So you've only been using 2 PCIE cables to power the 3080 FTW3 ultra? I would think that's 200% your problem right there. As for not experiencing shutdowns, could be because the GPU is so underpowered its not boosting the clock speeds to levels that would pull enough power to possibly trip any type of PSU protection (if your PSU is prone to that issue, but that's what I am trying to figure out). Please get back to me after you hook up the 3rd PCIE cable and let me know then if you are getting shut downs.
 
My question still stands to everyone else though. If you have a Seasonic Focus and have been experiencing PC shut down issues, what variant do you own? The GX or the FX? As a side note, "supposedly" Many of the transient power issues were fixed in the newer GX models. That's why I am asking.

Yes, only been using the 2 cables because this photo

and because my PSU only came with 2 pcie cables so that was my only option, it's the ssr-750fx model. Either way, I will reply back once I have the 3rd cable next week.
 
Thanks!