Just noticed that superiotool now supports my board, don't know whether someone has already posted a dump for this chip but another can't hurt if they have so...
Mainboard: Epox 8RDA3+ nVidia nForce 2 chipset
$ sudo ./superiotool -d Found Winbond W83627HF/F/HG/G (id=0x52, rev=0x17) at 0x2e Register dump: idx 02 07 20 21 22 23 24 25 26 28 29 2a 2b 2c 2e 2f val ff 0b 52 17 ff fe 80 00 00 00 00 7c c0 ff 00 ff def 00 NA 52 NA ff 00 MM 00 00 00 00 7c c0 00 00 00 LDN 0x00 (Floppy) idx 30 60 61 70 74 f0 f1 f2 f4 f5 val 01 03 f0 06 02 0e 00 ff 00 00 def 01 03 f0 06 02 0e 00 ff 00 00 LDN 0x01 (Parallel port) idx 30 60 61 70 74 f0 val 01 03 78 07 04 3c def 01 03 78 07 04 3f LDN 0x02 (COM1) idx 30 60 61 70 f0 val 01 03 f8 04 00 def 01 03 f8 04 00 LDN 0x03 (COM2) idx 30 60 61 70 f0 f1 val 01 02 f8 03 00 00 def 01 02 f8 03 00 00 LDN 0x05 (Keyboard) idx 30 60 61 62 63 70 72 f0 val 01 00 60 00 64 01 00 80 def 01 00 60 00 64 01 0c 80 LDN 0x06 (Consumer IR) idx 30 60 61 70 val 00 00 00 00 def 00 00 00 00 LDN 0x07 (Game port, MIDI port, GPIO 1) idx 30 60 61 62 63 70 f0 f1 f2 val 07 02 01 03 30 0a ff 00 00 def 00 02 01 03 30 09 ff 00 00 LDN 0x08 (GPIO 2, Watchdog timer) idx 30 f0 f1 f2 f3 f5 f6 f6 f7 val 01 ff 07 01 00 00 00 00 00 def 00 ff 00 00 00 00 00 00 00 LDN 0x09 (GPIO 3) idx 30 f0 f1 f2 f3 val 01 ff 00 00 40 def 00 ff 00 00 00 LDN 0x0a (ACPI) idx 30 70 e0 e1 e2 e3 e4 e5 e6 e7 f0 f1 f3 f4 f6 f7 f9 fe ff val 00 00 40 03 14 00 00 00 00 00 00 af 37 04 00 00 00 00 00 def 00 00 00 00 NA NA 00 00 00 00 00 00 00 00 00 00 00 00 00 LDN 0x0b (Hardware monitor) idx 30 60 61 70 f0 val 01 02 90 00 00 def 00 00 00 00 00