So I was trying to add a license dongle thing onto an old system. It didn't work, so checking devmgr i do not see a Com2. Tried adding but that didn't work either. So using msinfo32 I see there is no IRQ3,
ran a command I found on the net Debug -D:40 and it show the system having an com port at 2F8, so I think there should be a com2 on IRQ3, but there isn't. The physical connection is there the 9 and 15 pin are connected directly onto the mb at the same spot
Now this is an old system, a Precison 390 using XP, but if anyone has any ideas, I'd like to hear.
I've upgraded to latest BIOS.