This is very frustrating.
Intel no longer lists compatible products on the processor specs link (that used to link the supported chipset).
I have googled this thing to death (tried a couple weeks ago too) and I am coming up with a big, fat zero.
Even the HP 250 G2 business notebook has the wrong drivers on that support page (or at least not the ones you need).
I sure hope that the tech support folks at HP are working on releasing drivers for this model series!
Some folks have managed to get W7 installed (they didn't say how) but no one can find the usb 3 or graphics drivers.
For example...