The following components can be replaced while power is present on the server. These components can be replaced by customers.
Although hot service procedures can be performed while the server is running, you should usually bring it to standby mode as the first step in the replacement procedure. You do this by momentarily pressing the Power button on the front panel. See the descriptions of the Power OK LED and the Power Button in Power Off the Server (Power Button - Graceful) for more information about the standby mode.