Mac mini, no video and fan run full speed

It is puzzling me, im actually mac certified as well. cant seem to figure out what exactly is going on with it. The fan run full speed when you turn it on, there is no video displayed on the screen. it does beep when no ram is placed.

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Lets try this: Using a USB keyboard restart your system while pressing the T key the system should boot up in Target Disk Mode. You should see a FireWire icon on the screen do you?

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