You´re right. The Power adapter can be 180W, but the provided power would be limited to 130W … And max 90W for non Dell systems … bugger
What I’ll do then is probably take a cheap Dock and let the computer power it. Should do it somehow.
I may be misreading the specs, but it looks like USB-PD on the WD19TB only does 130W output (thats still some of the best you can find right now). I’m not aware of any dock that can do 180W PD output. If you are looking for driving the dGPU as hard as it can go for any period of time you might need two connections.
Yeah, that’s why I linked the specs; the power deliver section says 130W for connected dell systems and 90W for non-dell systems. The input to the dock is 180W (supplying that much power distributed across all devices connected to the dock), but the maximum output of that dock to the laptop is going to be lower than that (and based on the the documentation I wouldn’t expect to even get 100W to the laptop).
The USB-C ports on the dock typically require 15W of reserved power, and 5-10W for the USB-A ports. Those plus the power consumption of the dock must be budgeted at 50W and comes out of the 180W, leaving 130W for a compatible Dell laptop on their proprietary standard, and less for machines that stick to 20V PD.
It’s the same with most of these docks. The Lenovo one I have is 170W in, about 90W out via USB-C PD.
Just want to also chime in…FW16 doesn’t actually require 180W, especially if you don’t have the graphics modules and running flat out. I’d bet 90-100W is more than enough for a heavily loaded no dGPU installed.