A:Answer Bill, I don't have the specs you are requesting, however, these documents may be helpful to you. Here is a parts locator for the system where you can see the parts visually:
http://h10032.www1.hp.com/ctg/Manual/c06592760
Also, here is the interactive motherboard viewer:
http://h10032.www1.hp.com/ctg/Manual/c06592761
Here are the system specs. If you expand the motherboard section there is link that expands to more system specs:
https://support.hp.com/lt-en/document/c06614079