I have been having a similar problem. I was able to get lm_sensors to work on 2.4 kernels by using the p4b_smbus.o hotplug module. However, when I upgraded to Fedora 6/Linux 2.6.18, it no longer works. My understanding is that in Linux 2.6.x, it is no longer necessary to use the p4b_smbus hotplug module since activation of Asus's "hidden" SMBus is handled by code in drivers/pci/quirks.c Now, I learned from the previous post that the SMBus is not enabled if suspend is used and that I need to shut off the "Sleep States" in the ACPI menu. Is there any way to do this *without* recompiling the kernel? i.e., can I pass parameters to the kernel in grup or even after booting to get rid of the sleep states problem and get SMBus enabled? Thanks