The ADM 1026 system monitor (bottom of diagram), has external exhaust temperature sensor and on-board inlet temperature sensor. The ADM 1026 interfaces with the CPU die temperature sensor (top of diagram), identifying: ASM device driver (OEMs can write their own); Solaris Operating Environment; and ASM Application program (OEMs can implement their own monitoring and control logic). Midway down the diagram, between Southbridge and SMC Micro Controller is OBP, where OEMs can modify factory defaults.