I have an Asus Sabertooth 990FX R2.0 motherboard using AMD FD8320FRHKBOX 8 core 3.5ghz Processor and 1 out of 4 of my internal hard drives are not found and at times 1 of my 2 external drives aren't found but eventually is found. Sometimes my computer is very slow when restarting and it at times runs loud (approximately 45 - 90 seconds). It also runs 20 seconds and quiets down 20 seconds as if it takes deep breaths. Could this be a problem with my processor
No, sounds like a motherboard issue or possibly RAM. Symptoms of processor failure are blue screens of death and program crashes.