A technician needs to add a processor to a server. Which of the following specifications should the technician examine? (Select THREE).

Bus multiplier is an internal CPU characteristic determined at manufacturing and is not a user-configurable or compatibility-critical specification when selecting a replacement or additional processor.

Processor speed must match or be compatible with the existing CPU in a multi-socket server to ensure symmetric multiprocessing (SMP) stability and prevent performance mismatches.

Socket type determines physical and electrical compatibility between the CPU and motherboard - an incompatible socket makes installation impossible regardless of other specs.

Processor stepping identifies the silicon revision and microcode version, which must be compatible with the existing processor in multi-CPU configurations to avoid system instability or boot failures.

L3 cache size affects performance but does not determine hardware compatibility and is not a required match when adding a second processor to a multi-socket server.

Thermal specifications are important for cooling design but are not a compatibility specification that must match between processors in a multi-socket system.