After lots of testing and searching similar issues (which are already fixed or hardware related), i've switched to a newer B450 board (MSI) + Ryzen 5 w/o iGPU about one week ago and never had any hangs/freezes since then. (not even with the two-sided pdf document).
-- Mark Patruck ( mark at wrapped.cx ) GPG key 0xF2865E51 / 187F F6D3 EE04 1DCE 1C74 F644 0D3C F66F F286 5E51 https://www.wrapped.cx
