Hardware replacement proceduresPower supply key (CFFv4) replacementPower supply key (CFFv4) replacementFollow instructions in this section to remove or install a power supply key (CFFv4).Remove a power supply key (CFFv4)Follow instructions in this section to remove a power supply key (CFFv4).Install a power supply key (CFFv4)Follow instructions in this section to install a power supply key.Give documentation feedback