DerPfandadler

I got mine at retailer in Germany. I had troubles finding it on the official pages as well as HP doesn't really show you all the available configurations on their main page.

well. it does matter. the case fan headers might depend on the temperature measured in the case by the motherboard while the pump header most likely adjusts its speed according to the CPU temps. I like to just plug my pump into either and set it to a fixed speed where its not too loud but still sufficient for cooling my CPU.
but to your question. no, the fans on the radiator belong on the CPU_Fan header and the pump belongs on the pump header.

the HP x360 Envy with the ryzen 7 4700U with 16gb of ram works like a charm for me.
The build quality is nice, it has a touch display and I got it for less than 900€ with a small discount.  

oh
yeah. wait wut. am I blind?

your ram is still running far below spec. are you sure you selected the correct xmp profile? It should be running at 3600mhz, not 3000.
Yes, they probably used their ram at the fastest speed possible and didnt render the game at a higher resolution.

because of the combination of your ram running at a low frequency, odysseys optimization, your cpu and the 1.4x 1080p. yes

Well...
the rtx 2080 ti can indeed run it at 4k 60fps. But you are limited by your cpu...
Though I have no idea by how much.

You are also running AC odyssey at 1.4x 1080p. You are rendering the game a higher resolution. You probably have the same setting enabled in GTA V

Did you buy this GPU used?

Hmmm, you may want to run a 3Dmark benchmark and see how your gpu compares

Your ram is running pretty slow. Go into your bios and apply the correct XMP profile.

Personally I would wait for zen 3 and NAVI2 to be announced before making any purchasing decisions. 

well. it does matter. the case fan headers might depend on the temperature measured in the case by the motherboard while the pump header most likely adjusts its speed according to the CPU temps. I like to just plug my pump into either and set it to a fixed speed where its not too loud but still sufficient for cooling my CPU.
but to your question. no, the fans on the radiator belong on the CPU_Fan header and the pump belongs on the pump header.