50c is really good. What were you getting before? What is the ambient temp?

Well because it's a kit, i never tried the stock paste, i just wiped it off and applied TG. Ambient was around 21c

How about for the stock air cooled configuration? Would be interesting to know how much the hybrid kit along with Thermal Grizzly improved over air

I've got a hybrid kit and managed to snag 2g of the new Kyronaut Extreme. Kit arrives tomorrow, I'll post my results. I am in Florida heat, my temperatures under benchmarking (3d mark) are around 77-78c (normally low to mid 60s while gaming)

Can anyone confirm with a specific x570 motherboard they they are reaching 500w? I want to do a test to see if its motherboard related or card related. Ill pick up the same motherboard you said works and see if i can get passed 450

EVGA1225
How about for the stock air cooled configuration? Would be interesting to know how much the hybrid kit along with Thermal Grizzly improved over air

Oh yeah well with the same load, with an aggressive fan curve in a lian li o11D XL, the air cooler was hitting 70c. So a solid 20c drop for me

I have the asus prime x570 pro. Card does not go over 445 in any gaming applications or stress tests. It normally hovers around 420w. However it will go to 470 while doing the auto OC tuner in Precision. I am on the beta bios. I'm on the most recent motherboard bios with a 5800x installed.

im in the same boat. i didnt try oc scanner to see if it goes higher than 450 though. portroyal only sees 450 and gpuz shoes as me hitting power limit.

Do Gen4 PCIe x16 slots have a higher power limit or something that is the cause of some X570 boards hitting the full power limit with the 3090 FTW3 XOC BIOS? 
From what I've seen so far, the highest I've hit is around 455W - other than the brief 470+W spike at the end of Precision X1's OC Scan. 
 
Temps on the Hybrid card are pretty great though, the absolute highest I've seen thus far (with just PUSH fans installed on the GPU radiator) was 57C.  I've got Push/Pull EK Vardar fans that will ramp up to ~1900RPM if it's under load (controlled by GPU exhaust temps) on there now, fixing to hit another gaming session & see how it goes.

Also:
When is this OC XOC BIOS getting an update?  The XOC BIOS for the 3080 FTW3 Ultra still allowed for the GPU fans to go in to 0 RPM/stop mode if you had the fan curve set to do so at idle temps... the 3090 FTW3 Hybrid (OC switch) XOC BIOS isn't allowing the fan to go below 1199-1205RPM (~40%).
Is anyone using the NORMAL XOC BIOS on a 3090 FTW3 Hybrid, if so does that one allow for the 0 RPM mode to work?  I like the GPU's on board fan being able to shut off when I'm just browsing the web/on desktop.
 
 
Edit to Update: can confirm, the "500W" (using quotes now cuz it doesn't actually hit 500W when it says PWR in PerfCap) NORMAL XOC BIOS for the 3090 FTW3 Hybrid DOES allow the fan on the GPU itself (for the VRMs etc) to go to 0 RPM/stop mode while at idle temps if your fan-curve is set that way.