Screen is blank: Check the power connectors of the monitor and the system. Make sure monitor is connected to display card, change I/O address on network card if applicable., The monitor has no power., Power connectors may be loose or not plugged in., The screen goes blank periodically: Disable screen saver, Screen saver is enabled., Memory Module Problem: Memory problem, Loose installation of the RAM on the memory slot, Reboot computer. Re­install memory, make sure that all memory modules are installed in correct sockets., Keyboard failure: Keyboard is disconnected., Loose keyboard cable connection, System has no power at all.: Power cable is unplugged, Visually inspect power cable., Make sure power cable is securely plugged in.,

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