HP 9000 rp4410-4 User Service Guide, Fifth Edition - HP 9000 rp4410/4440 - Page 172

16. Verify processor replacement and operation by using the system utilities.) • To verify operation, use the iLO MP commands. • To verify operation, use the BCH commands. • To exercise the processor, use MAKODIAG provided by the ODE. Hot-Swappable Chassis Fan Unit There are three hot-swappable chassis fan units in the server. Fan units 0, 1, and 2 are in the center of the chassis spanning the full chassis width. Fan units 0 and 1 are interchangeable and are in the left and center positions. Fan unit 2 is smaller and only fits into the right-most position behind the power supply. The hot-swappable fans can be replaced using the procedures in this section when power is on or off. CAUTION: Observe all ESD safety precautions before attempting this procedure. Failure to follow ESD safety precautions can result in damage to the server. NOTE: A hot-swappable device does not require interaction with the operating system before the device is removed from or installed into the server. The ac power to the server does not need to be off to remove or replace a hot-swappable chassis fan unit. Removing a Hot-Swappable Chassis Fan Unit To remove a hot-swappable chassis fan unit, follow these steps: 1. If rack-mounted, slide the server out from the rack until it stops. See "Accessing a Rack-Mounted Server" (page 149). 2. Remove the top cover. See "Removing the Top Cover" (page 153). 3. Grasp the fan unit locking handle, tilt it up, and pull out the fan from the chassis. 172 Removing and Replacing Components