A description fig1 through 3 discussed below and the various embodiments used to describe the principles of the present invention in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the invention those skilled in the art will understand that the principles of the present invention may be implemented in any suitably arranged device the numerous innovative teachings of the present application will be described with particular reference to the presently preferred embodiment fig1 depicts a block diagram of a data processing system in which a preferred embodiment can be implemented as either a client or server system the data processing system depicted includes a processor 102 connected to a level two cache bridge 104 which is connected in turn to a local system bus 106 local system bus 106 may be for example a peripheral component interconnect pci architecture bus also connected to local system bus in the depicted example are a main memory 108 and a graphics adapter 110 other peripherals such as local area network lan wide area network wireless e g wifi adapter 112 may also be connected to local system bus 106 expansion bus interface 114 connects local system bus 106 to input output i o bus 116 i o bus 116 is connected to keyboard mouse adapter 118 disk controller 120 and i.