Troubleshooting 8-27POST fails to complete: Is the DIMM board installed?→ Check the installation location of DIMMs (see Chapter 9). Is the memory size large?→ The memory check may take a few seconds if the memory size is large. Wait for awhile. Did you perform any keyboard or mouse operation immediately after you started theserver?→ If you perform any keyboard or mouse operation immediately after start-up, POSTmay accidentally detect a keyboard controller error and stops proceeding. In sucha case, restart the server once again. Do not perform any keyboard or mouseoperation until the BIOS start-up message appears when you restart the server. Does the server have contains appropriate memory boards or PCI devices?→ Operation of the server with unauthorized devices is not guaranteed.Fail to access to internal or external devices (or such devices fail to operate): Are cables properly connected?→ Make sure that the interface cables and power cord are properly connected. Alsomake sure that the cables are connected in the correct order. Is the power-on order correct?→ When the server has any external devices connected, power on the externaldevices first, then the server. Did you install drivers for connected optional devices?→ Some optional devices require specific device drivers. Refer to the manual thatcomes with the device to install its driver. Is BIOS configuration correct?→ Some devices connected to the serial or parallel port may require I/O port addressor operation mode settings. Refer to the manual that comes with the board fordetails to make correct settings.