286 Chapter 23 Replacing or upgrading a power supplyN0060612N0060612Figure 144 Remove the power supply and support bracket13 Remove the tie-wrap from the power supply support bracket. Place the power supply in a safe,static-free location.Installing a BCM400 standard power supplyUse this procedure to install a functional standard power supply in a BCM400 main unit. The basefunction and advanced function trays must be partially removed.To install a BCM400 standard power supply1 Ensure the new power supply is an auto-adjust power supply.2 Insert a tie-wrap in the power supply support bracket lanclet.3 Place the standard power supply (top down) on a flat surface. Place the power supply supportbracket on the bottom surface of the power supply.4 Gather together and route the main card 20-pin power cable (P1) and the +12v power cable(P9) at the tie-wrap.5 Secure the power cables to the power supply support bracket with the tie-wrap inserted in step2 (see Figure 145).Warning: Protect the hardware components against damage from electrostatic discharge.Always wear a grounded wrist strap before you handle components. Always place thecomponents in a static-free container.Warning: Power supply cable management is critical. Loose or incorrectly positionedcables can result in cable damage.Cut the cabletie-wrap away fromthe power supplysupport bracket.Remove powersupplyRemove the powersupply and supportbracket from main unitRemove exterior and interior power supply supportbracket mounting screws (power supply not shown) -Remove power supply support bracket132
