PPC-5190 Flat Panel PCPage 78Step 4: Bundle the cables of the new PSU module and secure them with a plastic tiesimilar to the old PSU module.Step 5: Reconnect all previously disconnected power connectors to the motherboardand disk drives.Step 6: Reattach the elevated platform.Step 7: Replace the back cover.Step 0:4.6 System Cooling Fan ReplacementPlease read the warnings at the beginning of Section 4.3 before attempting to access anyPPC-5190 internal components.If the system cooling fans have been damaged, they must be replaced. To replace thesystem cooling fans, please follow the steps below.4.6.1 Remove the Old System Cooling FansStep 1: Remove the back cover (Section 4.3.1).Step 2: Detach and remove the elevated platform (see Section 4.3.2).Step 3: Disconnect the system cooling fans from the motherboard (Figure 4-13).Figure 4-13: System Cooling Fans Motherboard Connector