I'm not trying anything. HEDT (whatever you might think it is) didnt exist before Intel brought it up. You can of course look at it from both ways, saying that none of the previous platforms were HEDT or that all of them were HEDT in terms of features available (that's what I'm saying). And I agree about 1900X, but it's not about what's more appropriate for HEDT (because it's not a standard, and the definition was for the longest time shaped by what Intel did with it, as a single player on the market), it's about the features of the platform, regarding how well a specific processor takes advantage of those.
I actually have no complaints on how it worked because you actually had a lot of settings to play with to make it work (unlike a lot of modern boards). Not meant to nitpick, you just have a tendency to stray away from the topic and this time I didnt have a slightest idea where you're going with it.
All I'm saying that there was nothing inherently wrong with Intel iGPUs for HTPC (even if they were subpar in performance), especially if Intel shipped their lowend CPUs with more iGPU cores.
No, they cannot, but that's not the point. Noone advertised to you that you're going to have full set of features when installing a newer processor into an older motherboard. PCIe 3.0 with Sandy Bridge? Nope, install an Ivy Bridge CPU and you got it. Optane with Kaby Lake on Z170? Nope, but CPU is fully supported. Yes, 7640X/7740X are a gimmick, but they work on Basin Falls chipset, so does Skylake-X, and those CPU represent different uArches.
Re-read the original question, perhaps you'll learn what the question was.
But even if you do or even did, I doubt you'd answer properly and truthfully.
That's good one.
So? Conroes were supported by all boards that supported Core 2s (except for the boards which didnt get a BIOS update to support 1333 MHz FSB, but that's just BIOS, you could mod it yourself). Unfortunately, a lot of those same boards didnt support Wolfdale, Kentsfield and Yorkfield - I doubt we would find out why. And let's not talk about extreme ones here: QX7770s were not even supported by a lot of the boards using latest LGA775 chipsets: it's pretty stupid to implement 1600 MHz FSB support for one chip that is not even current, and noone will ever have.
They were fucking hot (no shit btw, those were tiny, I'd guess that Nvidia used at least 2 steps smaller fab process for those), died like flies, but it was much easier with those. They either supported all Core 2, all Core 2 dual cores, or none at all.
945s could physically support all 65nm Core 2s, but very few of them even supported all Conroes.
Stop skimping for arguments where there arent any. Just admit you're wrong, I'm not the one to remind people of the things they didnt know.