My D525MW COMM port works properly with windows xp but when I install windows 7 on this motherboard, the COMM port doesn't work at all. Even if I add the second serial port, it also doesn't work. I have test on 2 different motherboard and see this problem on both of them.
Does any one has the same problem? Any idea?
Make sure you have loaded Windows* 7 service pack on your system:
Also, try installing chipset utility for your motherboard model:
I tested both suggested ways. Now my windows 7 has sp1 and I installed the last version of chipset utility but none of them didn't work.
P.S: I have installed some devices same as check scanner, printer and ... to all of it's USB port. Can this issue causes some problems?