Processor and heat sink replacement (trained technician only)
Follow the instruction in this section to replace an assembled processor and heat sink, known as a processor-heat-sink module (PHM), a processor, or a heat sink.
This task must be operated by trained technicians that are certified by Lenovo Service. Do no attempt to remove or install it without proper training and qualification.
Before reusing a processor or heat sink, make sure that you use Lenovo proven alcohol cleaning pad and thermal grease.