NOTE: If you unlatched the cable management arm, relatch it. For information about the cablemanagement arm, see the rack documentation of your system.2. Connect the power cable to the PSU and plug the cable into a power outlet.CAUTION: When connecting the power cable, secure the cable with the strap.NOTE: When installing, hot swapping, or hot-adding a new PSU, wait for 15 seconds for thesystem to recognize the PSU and determine its status. The PSU redundancy may not occur untildiscovery is complete. Wait until the new PSU is discovered and enabled before you remove theother PSU. The PSU status indicator turns green to signify that the PSU is functioning properly.Figure 61. Installing an AC PSU1. release latch 2. PSU cable connector3. PSU 4. power connector5. PSU handleGUID-BC395B99-9FF1-411A-A3E3-AE00C469C152System boardA system board (also known as the motherboard) is the main printed circuit board found in systems. Thesystem board allows communication between many of the crucial electronic components of the system,such as the central processing unit (CPU) and memory, and also provides connectors for otherperipherals. Unlike a backplane, a system board contains significant number of sub-systems such as theprocessor expansion cards, and other components.136
