NEC Express5800 Series User Manual page 86

8-10 Troubleshooting
Fail to power-off:
 Did you turn off the power of CPU blade?
→ The power of Tape Blade is linked with the power of the CPU blade and
controlled by EM card. Turn off the power of CPU blade.
 Is the POWER switch function of the CPU blade disabled?
→ Restart the CPU blade once and then start the BIOS SETUP utility.
<Menus to check: [Security] – [Power Switch Inhibit]>
The MAC address of the LAN of the Tape Blade is unknown:
→ You can find the MAC address by the label put near the MP connector on the Tape
Blade. See Chapter 3 for details.
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. Also
make sure that the cables are connected in the correct order.
Is the power-on order correct?

→ When the CPU blade has any external devices connected, power on the external
devices first, then the CPU blade and Tape Blade.
 Did you install drivers for connected optional devices?
→ Some optional devices require specific device drivers. Refer to the manual that
comes with the device to install its driver.
 Is BIOS configuration of CPU blade correct?
→ When the CPU blade has PCI devices connected, make sure to set the PCI device
interrupt and others with the BIOS SETUP utility of the CPU blade. (Most PCI
devices generally do not require any change to the configuration, but some boards
do require specific settings. Refer to the manual that comes with the board for
details to make correct settings.