There is definitly no component. It is not just putting your components together on the form and finish. You have to
access the SMBus register of the chipset (where this register chances by vendor and even by chipset model). To
access these register, you have to do hardware port
access to the hardware ports of the chipset, where a new problem will come up: Windows NT and following doesn't allow application to do so. But this problem can be solved - the most problems is to collect the different chipset hardware informations about accessing the SMBus and further the documentation of the different sensor ICs connected to the SMBus. There is a wide range of different ICs. The commonly known is the
LM78, but he is obsolete and mostly superseeded by new, more compact ICs. The EEPROMs of the memory modules are connected to the SMBus.
If you want some source for accessing SMBus, try to search for HWMon. This name is used by a hardware monitor in linux but also for Delphi application for measuring the fan rpms, voltages etc. They are accessed through the SMBus interface.