9-14 Upgrading Your Server
5.If you are not going to install a replacement power supply unit, you must install a blank cover you removed in step 2 of installation procedure to vacant slot.
IMPORTANT: To maintain the cooling effect in the server, install the blank cover in the vacant slot of the power supply bay.
6.Install the new power supply unit taking steps 3 to 7 of "Installation", and confirm that the power supply unit is installed normally.
NOTE: If one of the three power supply units of the server is replaced while the power is on, the POWER lamp of the new power supply unit goes on. (If it is replaced while the power is off, the lamp goes on after the power is turned on.)
