HP A4500A Hardware Manual - rp24xx, Customer Viewable - Page 125

Adding CPUs and Socket Cleaning Adding CPUs and Socket Cleaning Replacement or installation of a CPU requires that the CPU chip socket be clean and uncontaminated with dirt and dust particles. The CPU chip socket must be cleaned or replaced if you: • Replace a system board (using the CPUs from the old system board to populate the new system board). • Add a CPU to the server. • Remove a CPU for troubleshooting (to be replaced in the same system board). • Remove a failed CPU and replace it with a new CPU assembly. Tools Required To add or replace a CPU, or to clean a system board socket and the surrounding area, you will need the following items: • CPU socket dust cover (HP p/n A3639-40024) • Electronic Vacuum Cleaner- ESD safe, EMI/RFI line filter, acceptable models and options are: 1. 110V Vacuum (HP p/n 1150-5070, comes with US power cord) 2. 220/240V Vacuum (HP p/n 1150-5071, no power cord, must order item 3 or 4) 3. European power cord (2 meter (6foot)) (HP p/n 5184-0874) 4. U.K. power cord (2 meter (6foot)) (HP p/n 5184-0875) 5. Vacuum filter (0.03 micron) (HP p/n 3150-0785) A magnifying glass, (at least 3X power) to aid in the inspection of the removed CPU socket. Cleaning Kit Components The A3639-70001 CPU socket cleaning kit contains the following items. • EMI O-ring (HP p/n 5183-3542) • IPA pre-moistened, lint free wipes (HP p/n 5012-1138) • thermostrate pad (HP p/n A3614-00014) • CPU chip socket with dust cover (HP p/n 1253-0703) The following graphic shows an exploded view of the CPU assembly, with the component names. Chapter 133