IBM 7985 Problem Determination And Service Manual

v Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 4, “Parts listing, System x3655, Type 7985 and 7943,” on page 93 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 Action301-xxx-000 Failed keyboard test.Note: After installing a USB keyboard, youmight have to use the Configuration/SetupUtility program to enable keyboardlessoperation and prevent the POST errormessage 301 from being displayed duringstartup.1. Reseat the keyboard cable.2. Replace the following components one at a time,in the order shown, restarting the server eachtime:a. Keyboardb. (Trained service technician only) Systemboard405-xxx-000 Failed Ethernet test on Ethernet controller. 1. Run the Configuration/Setup Utility program andmake sure that Ethernet is not disabled and thatthe BIOS code is at the latest level.2. (Trained service technician only) Replace thesystem board.405-xxx-00n Failed Ethernet test on adapter in PCI slotn. 1. Reseat the Ethernet adapter in slot n.2. Replace the Ethernet adapter in slot n.3. (Trained service technician only) Replace thesystem board.Recovering the BIOS codeIf the BIOS code has become damaged, such as from a power failure during anupdate, you can recover the BIOS code using the boot block jumper and a BIOSrecovery diskette.Notes:1. You can obtain a BIOS recovery diskette from one of the following sources:v Download the BIOS code update from the World Wide Web and use it tomake a recovery diskettev Contact your IBM service representative.2. To create and use a diskette, you must add an optional external diskette drive tothe server.To download the BIOS code update from the World Wide Web, complete thefollowing steps:1. Go to http://www.ibm.com/servers/eserver/support/xseries/index.html.2. Select System x3655 from the Hardware list3. From the Software list, select the applicable operating environment and clickGO.4. Click the Download tab.5. Click BIOS, drivers, and firmware for the applicable operating environment.6. Download the latest BIOS code update.7. Create the BIOS recovery diskette, following the instructions that come with theupdate file that you downloaded.Chapter 3. Diagnostics 67