I'm running Windows 7 32-bit on a new DH87MC (firmware revision 0047), and in Device Manager, I'm seeing two serial ports (COM1 and COM2) and a parallel port (LPT1). This board has no connectors or onboard headers for these ports, and there doesn't appear to be a way to disable them in BIOS. It looks like they're hanging off of the LPC controller in the PCH, which provides the ISA/PCI bridge.
Were these exposed by accident? I know some other things, like TPM, use LPC, but I can't see any practical reason for these showing up.
Our use case for this board will involve installing PCIe-based COM ports, and we're trying to avoid confusing our end users with a couple of ports that don't exist. Any suggestions for making these go away?