I'm using "debian-live-8.7.1-amd64-standard.iso" on a PPC-3060S Industrial Panel PC from Advantech. I have the same problem where the installation process stops at running dpkg - 12%. This behavior is the same on standard install and GUI install.
The BIOS is Aptio Setup Utility version 188.8.131.52 from American Megatrends.
It has options in "Chipset->South Bridge":
OS Selcetion is by default set to [Windows 7].
XHCI mode is by default set to [disable].
If I change OS Selection for [Linux], XHCI also changes for [Enabled].
Once these options are set the installer no longer stops at 12% Running dpkg and it completes successfully.
I hope this helps.