Fan processor spinning fast, but no view

Hello guys,,,

i do need your help. i just join with you all, hoping some help to my problem.
i have Accer Aspire PC. sometimes it restart by itself, and get some error like BCCode....
then until now, it just don't want to turn on. when i turn the power on, the processor fan spinning so fast (unusual), but no bios beep, and nothing change in monitor (no view at all). i try to reset bios by replacing the jumper, take off the bios battery, bot nothing works. i try to replace my RAM to another socket, or change with another one, bot still can't get any progress. i had no any card attach in any socket.

any one can help me... please......

thank you all...