IBM 366 Problem Determination And Service Manual

Also see for 8863 - eServer xSeries 366: Service guide Service guide Installation guide Installation guide

v Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 3, “Parts listing, Type 8863,” on page 105 to determine which components are customerreplaceable 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 Action305-xxx-xxx Failed video monitor test. 1. Reseat the following components:a. Monitorb. I/O board2. Replace the components listed in step 1 one at atime, in the order shown, restarting the servereach time.405-xxx-000 Failed Ethernet test on controller on I/Oboard. 1. Make sure that Ethernet is not disabled in theConfiguration/Setup Utility program and that theBIOS code is at the latest level.2. Run the loopback diagnostic.3. Reseat the I/O board.4. Replace the I/O board.405-xxx-00n No good link! Check loopback plug. 1. Make sure that the loopback plug is a gigabitloopback plug (see “Solving Ethernet controllerproblems” on page 102).2. Check for any loose connections between theloopback plug and the Ethernet connector.Recovering from a BIOS update failureIf the BIOS code in the server has become damaged, such as from a power failureduring an update, your server has an advanced recovery feature that willautomatically switch to a backup BIOS page.The flash memory of the server consists of a primary page and a backup page. Ifthe BIOS code in the primary page is damaged, the onboard baseboardmanagement controller will detect the error and automatically switch to the backuppage to start the server. In this event, a POST warning message “Booted frombackup POST/BIOS image” will be displayed.Note: The backup page version may not be the same version as the primaryimage.You can then recover or restore the original primary page BIOS by using the BIOSflash diskette.Note: To create and use a diskette, you must add an optional external diskettedrive to the server.To recover the BIOS code and restore the server operation to the primary bank,complete the following steps:1. Download the latest version of the BIOS code from http://www.ibm.com/support/.2. Update the BIOS code, following the instructions that come with the update filethat you downloaded. This will automatically restore/update the primary page.88 IBM xSeries 366 Type 8863: Problem Determination and Service Guide