
Universal Serial Bus (USB) port problems ..............72
Video problems........................72
Error LEDs ..........................72
Power-supply LEDs .......................75
System pulse LEDs .......................76
Diagnostic programs and messages .................77
Running the diagnostic programs .................78
Diagnostic text messages ....................78
Viewing the test log ......................79
Diagnostic messages .....................79
Recovering the server firmware ..................113
Automated boot recovery (ABR) ..................115
Three boot failure .......................115
Solving power problems .....................115
Solving Ethernet controller problems ................116
Solving undetermined problems ..................116
Problem determination tips ....................117
Chapter 4. Parts listing, System x3250 M3 Types 4251, 4252, and 4261 119
Replaceable server components ..................119
Power cords .........................123
Chapter 5. Removing and replacing server components ........127
Installation guidelines ......................127
System reliability guidelines...................128
Working inside the server with the power on ............129
Handling static-sensitive devices .................129
Returning a device or component ................129
Removing and replacing Tier 1 CRUs ................130
Removing the cover .....................130
Installing the cover ......................130
Removing the bezel .....................131
Installing the bezel ......................132
Removing the DIMM air baffle ..................132
Installing the DIMM air baffle ..................133
Removing the riser-card assembly ................133
Installing the riser-card assembly.................134
Removing the system battery ..................135
Installing the battery .....................137
Removing the PCI-X riser-card power cable .............139
Installing the PCI-X riser-card power cable .............140
Removing an adapter .....................140
Installing an adapter .....................141
Hard disk drive .......................144
Removing an optional DVD drive .................147
Installing an optional DVD drive .................149
Removing a memory module ..................151
Installing a memory module...................152
Removing a fan .......................157
Installing a fan .......................158
Removing an optional IBM ServeRAID-MR10i SAS/SATA Controller ....159
Installing an optional IBM ServeRAID-MR10i SAS/SATA Controller ....160
Removing an optional IBM ServeRAID-MR10is VAULT SAS/SATA Controller 162
Installing the optional IBM ServeRAID-MR10is VAULT SAS/SATA controller 162
Removing a USB embedded hypervisor flash device .........165
Installing a USB embedded hypervisor flash device ..........165
iv IBM System x3250 M3 Types 4251, 4252, and 4261: Problem Determination and Service Guide