Here's the spec page for the 880-029 with Intel: https://support.hp.com/ca-en/document/c05505501
The motherboard looks to be called a Tampa.
Here's the spec for that motherboard from HP: https://support.hp.com/ca-en/document/c05502869
I could be wrong, but I don't think it will support an Intel 8th gen CPU (Z270 vs required Z370 chipset), but it should support a 1080(ti).