Hello, i´ve got a HP EliteDesk 800 G1 Tower, with Q87 Chipset (Spec´s below), Intel i5 4590.
Managed it to install OS X 10.11.5, Clover 3543 UEFI boot, installed AppleIntelE1000e.kext (Intel I217LM ), Voodoo HDA (ALC 221 Audio) and a SSDT from iMac 15,1 i4590.
So far, most is working, HD4600...