Hi Dump from COMPAQ DeskPRO EN 6400 (Motherboard part number 178919-001)
superiotool r4256 Found NSC PC97307 (sid=0xcf, srid=0x05) at 0x15c Register dump: idx 20 21 22 23 24 27 val cf d6 02 00 00 05 def cf MM MM 00 00 NA LDN 0x00 (Keyboard) idx 30 31 60 61 62 63 70 71 74 75 f0 val 01 00 00 60 00 64 01 03 04 04 40 def MM 00 00 60 00 64 01 02 04 04 40 LDN 0x01 (Mouse) idx 30 70 71 74 75 val 01 0c 03 04 04 def 00 0c 02 04 04 LDN 0x02 (Real-time clock (RTC), advanced power control (APC)) idx 30 31 60 61 70 71 74 75 val 01 00 00 70 08 00 04 04 def MM 00 00 70 08 00 04 04 LDN 0x03 (Floppy) idx 30 31 60 61 70 71 74 75 f0 f1 val 01 00 03 f0 06 03 02 04 60 00 def MM 00 03 f2 06 03 02 04 20 00 LDN 0x04 (Parallel port) idx 30 31 60 61 70 71 74 75 f0 val 01 00 03 78 07 02 03 04 f2 def 00 00 02 78 07 00 04 04 f2 LDN 0x05 (COM2 / IR) idx 30 31 60 61 70 71 74 75 f0 val 01 00 02 f8 03 03 04 04 82 def 00 00 02 f8 03 03 04 04 02 LDN 0x06 (COM1) idx 30 31 60 61 70 71 74 75 f0 val 01 00 03 f8 04 03 04 04 02 def 00 00 03 f8 04 03 04 04 02 LDN 0x07 (GPIO) idx 30 31 60 61 74 75 val 01 00 00 78 04 04 def 00 00 00 00 04 04 LDN 0x08 (Power management) idx 30 31 60 61 74 75 val 01 00 00 76 04 04 def 00 00 00 00 04 04