If you are able i would definitely consider returning it and getting something along the lines of what @Scott has suggested (although like you did previously i would recommend the MX-4 thermal compound).
Out of interest do you have Control Center installed and configured?
It does sound like a pretty good bit of kit. I've said before the main thing i would probably use it for is emulation. Its emulation support looks absolutely insane.
What sort of games are you playing on it? Do you find the majority just work or do you spend ages messing about with them to get...
So my steam deck is due to be available starting next month. For those of you that have had one for a while is it worth while. I am sitting on the fence a bit at the minute. I am away with work and have been absolutely glued to my switch in what little free time I have. It has got me thinking do...
That Intel CPU does run hot. In terms of weather you should be worried or not would depend on more testing. If you want more advice start a new thread and people will help you test your thermals.
P.S sorry for the mega late response.
Wow In the decade I have been a member of this forum this is a first! Its a good job you sent the laptop back to them!
Absolutely 100% get a refund. If PCS are telling you that the configuration is incompatible and at best would cause performance issues at worse would cause damage you have got...
@PoneyKlub Looking at the difference between you and the similarly specced defiance your GPU and CPU appear to be running at a lower clock rate. You could push more performance by setting your fan profile to Max Fans in Control Center, unlocking your dynamic boost and setting your TGP to the max.