Remind button . . . . . . . . . . . . . . . . . . . . . . . . 64Light path diagnostics LEDs . . . . . . . . . . . . . . . . . . . 65Power-supply LEDs . . . . . . . . . . . . . . . . . . . . . . . 69Diagnostic programs, messages, and error codes . . . . . . . . . . . . 72Running the diagnostic programs . . . . . . . . . . . . . . . . . 72Diagnostic text messages . . . . . . . . . . . . . . . . . . . . 73Viewing the test log . . . . . . . . . . . . . . . . . . . . . . 73Diagnostic messages . . . . . . . . . . . . . . . . . . . . . 73Tape alert flags . . . . . . . . . . . . . . . . . . . . . . . . 108Recovering the server firmware . . . . . . . . . . . . . . . . . . 109Automatic boot failure recovery (ABR) . . . . . . . . . . . . . . . . 112Nx boot failure. . . . . . . . . . . . . . . . . . . . . . . . . 113System event messages log . . . . . . . . . . . . . . . . . . . 114Integrated management module error messages . . . . . . . . . . . . 114Solving power problems . . . . . . . . . . . . . . . . . . . . . 153Solving Ethernet controller problems . . . . . . . . . . . . . . . . 154Solving undetermined problems . . . . . . . . . . . . . . . . . . 154Problem determination tips . . . . . . . . . . . . . . . . . . . . 155Chapter 4. Parts listing, Types 4255, 7945, and 7949 server. . . . . . . 157Replaceable server components . . . . . . . . . . . . . . . . . . 157Product recovery CDs . . . . . . . . . . . . . . . . . . . . . . 165Power cords . . . . . . . . . . . . . . . . . . . . . . . . . 165Chapter 5. Removing and replacing server components . . . . . . . . 169Installation guidelines . . . . . . . . . . . . . . . . . . . . . . 169System reliability guidelines . . . . . . . . . . . . . . . . . . . 170Working inside the server with the power on . . . . . . . . . . . . 171Handling static-sensitive devices . . . . . . . . . . . . . . . . . 171Returning a device or component . . . . . . . . . . . . . . . . 172Internal cable routing and connectors . . . . . . . . . . . . . . . 172Removing and replacing consumable parts and Tier 1 CRUs . . . . . . . 176Removing the cover . . . . . . . . . . . . . . . . . . . . . 177Installing the cover . . . . . . . . . . . . . . . . . . . . . . 178Removing the microprocessor 2 air baffle. . . . . . . . . . . . . . 178Installing the microprocessor 2 air baffle . . . . . . . . . . . . . . 180Removing the DIMM air baffle . . . . . . . . . . . . . . . . . . 180Installing the DIMM air baffle . . . . . . . . . . . . . . . . . . 182Removing the fan bracket . . . . . . . . . . . . . . . . . . . 182Installing the fan bracket . . . . . . . . . . . . . . . . . . . . 184Removing an IBM virtual media key . . . . . . . . . . . . . . . . 185Installing an IBM virtual media key . . . . . . . . . . . . . . . . 186Removing a USB hypervisor memory key . . . . . . . . . . . . . 186Installing a USB hypervisor memory key . . . . . . . . . . . . . . 187Removing a PCI riser-card assembly . . . . . . . . . . . . . . . 188Installing a PCI riser-card assembly . . . . . . . . . . . . . . . . 189Removing a PCI adapter from a PCI riser-card assembly . . . . . . . . 190Installing a PCI adapter in a PCI riser-card assembly . . . . . . . . . 191Removing the optional two-port Ethernet adapter . . . . . . . . . . . 193Installing the optional two-port Ethernet adapter . . . . . . . . . . . 194Storing the full-length-adapter bracket . . . . . . . . . . . . . . . 196Removing the SAS riser-card and controller assembly . . . . . . . . . 197Installing the SAS riser-card and controller assembly . . . . . . . . . 198Removing a ServeRAID SAS controller from the SAS riser card . . . . . 201Installing a ServeRAID SAS controller on the SAS riser card . . . . . . 202Removing an optional ServeRAID adapter advanced feature key . . . . . 204iv IBM System x3650 M3 Types 4255, 7945, and 7949: Problem Determination and Service Guide
