Optional-device problemsv Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See the parts listing in the Problem Determination and Service Guide to determine which components arecustomer 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 atrained service technician.Symptom ActionAn IBM optional device that wasjust installed does not work. 1. Make sure that:v The device is designed for the server (see http://www.ibm.com/servers/eserver/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 Configuration/Setup Utilityprogram. Whenever a device is changed, you must update the configuration.2. Reseat the device that you just installed.3. Replace the device that you just installed.An IBM optional device thatused to work does not worknow.1. Make sure that all of the cable connections for the device are secure.2. If the device comes with test instructions, use those instructions to test thedevice.3. Reseat the failing device.4. Replace the failing device.44 IBM System x3250 Types 4364 and 4365: Installation Guide