Pc will not boot up

  vin 20:08 13 Apr 06
Locked

I have a pc with Adaptec AIC 7896 mother board. The pc used to work ok untill yesterday.Now it fails to boot up.
When power is swithed on it beeps a series of beeps. ie 1 beep followed by 3 then 4 then 1 beep.
There is no display on screen.so i cannot access bios set up.
The cd rom and dvd drives lights flash and the red and green lights on the front of tower are light.
Has hard drive failed or is there another problem?
Anyone have any answers?
Please help.

  gudgulf 20:19 13 Apr 06

Bios beep codes click here

The sequence of beeps suggests a Pheonix BIOS

That being the case 1.3.4 beeps(the nearest to what you describe) points to a motherboard failure.

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