8-12 TroubleshootingFail to access to internal or external devices (or such devices fail to operate):8 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.8 Is the power-on order correct?→ When the server has any external devices connected, power on the externaldevices first, then the server.8 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.8 Is BIOS configuration correct?→ When the server has PCI devices connected, make sure to set the PCI deviceinterrupt and others with the BIOS SETUP utility of the server. (Most PCIdevices generally do not require any change to the configuration, but some boardsdo require specific settings. Refer to the manual that comes with the board fordetails to make correct settings. [Advanced] - [PCI Configuration] - [PCI Slot xx ROM]x: PCI slot number>→ 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.