Your instructions were to add an entry to the supported[] table in i2c-piix4. This is a RedHat stock kernel (2.4.18-27.7.x). Can I download the latest lm_sensors and compile the modules? Or do I have to patch the kernel? I am comfortable with compiling modules to replace RedHat versions - having done that to support various other hardware, but not with patching the kernel. I got in a Dell 1600SC. This has a CSB5 chipset. Now i2c-piix4 reports: Apr 19 21:06:39 lord kernel: i2c-piix4.o version 2.6.3 (20020322) Apr 19 21:06:39 lord kernel: i2c-piix4.o: Found CSB5 device Apr 19 21:06:39 lord kernel: i2c-piix4.o: Host SMBus controller not enabled! Apr 19 21:06:39 lord kernel: i2c-piix4.o: Device not detected, module not inserted. lspci -n shows: 00:0f.3 Class 0601: 1166:0225 I think I saw something about enabling SMBus controller on another ticket, so I'll go search. -- Stuart D. Gathman <stuart at bmsi.com> Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154 "Confutatis maledictis, flamis acribus addictis" - background song for a Microsoft sponsored "Where do you want to go from here?" commercial.