ixPart 5. TroubleshootingChapter 10. Diagnosing and recovering from problems .........................10-1Before you panic: some simple fixes .............................................................10-2Quick problem solving chart ..........................................................................10-6Solving hardware and software problems .....................................................10-7Solving hardware problems ..................................................................10-7Solving software problems ....................................................................10-13Solving modem problems .....................................................................10-15Error codes and messages ............................................................................10-17IBM Diagnostic Programs ..............................................................................10-20Recovering factory-installed programs and files ............................................10-22Part 6. Technical referenceAppendix A. Specification tables ...............................................................A-1Memory module placement ...........................................................................A-1Memory map ..................................................................................................A-3System input/output addresses .....................................................................A-4System interrupts ...........................................................................................A-6DMA channel assignments ............................................................................A-7Serial port addresses .....................................................................................A-8Connector functions .......................................................................................A-9Appendix B. Modem information ...............................................................B-1Modem features .............................................................................................B-1Operating your modem ..................................................................................B-3Using the Auto Answer feature .............................................................B-3Disabling Call Waiting ...........................................................................B-4Modem commands ........................................................................................B-5Executing commands ...........................................................................B-5Command format ..................................................................................B-5AT commands .......................................................................................B-6Detail for +MS Controls ........................................................................B-9Extended AT commands ......................................................................B-10V.42bis commands ...............................................................................B-11
