Dell PowerEdge M420 Hardware Owner's Manual - Page 207

RAID Battery The information in this section applies only to systems with the optional PERC controller cards without an integral battery backup unit. NOTE: For M710, M610, and M610x the RAID battery connectors are located on the system board. To locate the connectors for the RAID battery on the system board, see the appropriate figure in "System Board Connectors" on page 316. Removing a RAID Battery 1 Remove the blade. See "Removing a Blade" on page 145. 2 Open the system. See "Opening the Blade" on page 149. 3 Press the tab on the RAID battery cable connector and pull the cable connector out of the connector on the storage card. See Figure 3-27. 4 Remove the battery. For systems with a battery carrier: a Pull the battery carrier release tab, and lift the battery carrier out of the battery-carrier slots on the chassis. See Figure 3-27. b Pull back gently on the two tabs holding the RAID battery and lift the RAID battery from the battery carrier. See Figure 3-27. For M910, slide the battery to free the tabs on the RAID battery from the battery carrier on the system board and lift the RAID battery from the system board (see Figure 3-28). For systems (M710, M610, and M610x) without a battery carrier, slide the battery to free the tabs on the RAID battery from the metal standoffs on the system board and lift the RAID battery from the system board (see Figure 3-29 and Figure 3-30). Installing Blade Components 207