v Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See the Problem Determination and Service Guide on the IBM System x Documentation CD 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 atrained service technician.Error code Description Action1762 Fixed disk configuration error. 1. Run the Configuration/Setup Utility program andload the defaults.2. Reseat the following components:a. SAS cablesb. SAS hard disk drive3. Replace the following components, one at a time,in the order shown, restarting the server eachtime:a. SAS cablesb. SAS hard disk drivec. (Trained service technician only) Systemboard178x Fixed disk error. 1. Reseat the hard disk drive cables.2. Replace the hard disk drive cables.3. Run the hard disk drive diagnostic tests.4. Reseat the following components:a. Optional ServeRAID-8i adapterb. Hard disk drive5. Replace the following components, one at a time,in the order shown, restarting the server eachtime:a. Optional ServeRAID-8i adapterb. Hard disk drivec. (Trained service technician only) Systemboard1800 Unavailable PCI hardware interrupt. 1. Run the Configuration/Setup Utility program andadjust the adapter settings.2. Remove each adapter one at a time, restartingthe server each time, until the problem is isolated.68 IBM System x3500 Type 7977: Installation Guide