signals of the power supplies 14 16 the total power may be determined based on the voltage levels present on the load share lines 32 34 and 36 respectively further each server installed in the enclosure 10 may draw power from the 5 volt auxiliary rail 28 and thus the enclosure manager 20 may also monitor the total power draw on this rail as part of the determination if the additional server may be allowed to power on fig3 illustrates a block diagram of the internal components of the enclosure manager 20 of embodiments of the present invention the enclosure manager 20 may comprise a central processing unit cpu 38 while any microprocessor or microcontroller may be used in the capacity of the cpu 38 of the enclosure manager 20 cpu 38 may be an ibm power pc405gp the cpu 38 may couple to a non volatile memory 40 while many types of nonvolatile memory may be utilized without departing from the scope and spirit of the disclosure the non volatile memory 40 may comprise both flash read only memory flashrom and non volatile random access memory nvram the cpu 38 of the enclosure manager 20 may also couple to a main memory array 42 the main memory array 42 may be synchronous dynamic random access memory sdram with the sdram 42 possibly being the working memory for the cpu 38 by contrast the non volatile memory 40 or other memory may store boot strap programs for the cpu 38 as well as the software.