Hello Mike, Please always CC to the list. > Do you want to scan the ISA bus? (YES/no) > ......................... > Probing for TE IT8712F' > Trying address 0x0290... Failed! > Probing for TE IT8716F' > Trying address 0x0290... Failed! > .......................... > Hmmm I did something wrong perhaps? > Do you want to scan for Super I/O sensors? (YES/no): > ......................... > Probing for TE 8702F Super IO Sensors' > Failed! (0x8716) > Probing for TE 8705F Super IO Sensors' > Failed! (0x8716) > Probing for TE 8712F Super IO Sensors' > Failed! (0x8716) > Probing for TE IT8716F Super IO Sensors' > Success... found at address 0x0290 This works. Ok so only one problem left in sub ite_isa_detect Please can you take a look to that routine and find out which return it takes? (I don't know much perl but I guess you will be able to hack out some "printf" there) moreover please can you provide me a dump of isadump -f 0x290 Maybe there is some problem with the initial detection. Thanks, Regards Rudolf