Optional-device problemsThis information provides steps for solving optional-device problems.Table 35. Symptoms and actions for optional-device problemsv Follow the suggested actions in the order in which they are listed in the Action column until the problem issolved.v See Chapter 5, “Parts listing, System x3750 M4 Types 8722 and 8733,” on page 215 to determine whichcomponents are customer replaceable units (CRU) and which components are field replaceable units (FRU).v If an action step is preceded by (Trained service technician only), that step must be performed only by a Trainedservice technician.Symptom ActionAn IBM optional device thatwas just installed does notwork.1. Check the IMM event log for any events associated with the device.2. Make sure that the following conditions are met:v The device is installed in the correct port.v The device is designed for the server (see http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/).v You followed the installation instructions that came with the device, and thedevice is installed correctly.v You have not loosened any other installed devices or cables.v You updated the configuration information in the Setup utility. Whenevermemory or any other device is changed, you must update the configuration.3. Reseat the device that you just installed.4. Replace the device that you just installed.An IBM optional device thatworked previously does notwork now.1. Check the IMM event log for any events associated with the device.2. Make sure that all of the cable connections for the device are secure.3. Reseat the failing device.4. If the device comes with test instructions, use those instructions to test thedevice.5. If the failing device is a SCSI device, make sure that the following conditionsare met:v The cables for all external SCSI devices are connected correctly.v The last device in each SCSI chain, or the end of the SCSI cable, isterminated correctly.v Any external SCSI device is turned on. You must turn on an external SCSIdevice before you turn on the server.6. Replace the failing device.PCIe adapters not recognized orare not functioning 1. Check the IMM event log and resolve any errors related to the device.2. Make sure that the adapter is on the ServerProven list for the Machine Type(see http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/).3. Make sure that the adapter is installed in the correct slot.4. Make sure that the correct device drivers for the device are installed on youroperating system.5. Resolve any resource conflicts if the server is running in legacy mode (UEFI).Check for service bulletins for help with this problem.6. Make sure that any adapter external connections are correct and not physicallydamaged.Chapter 4. Troubleshooting 201