pc doesnt boots..

[uday006]

hi everybody,
I have a HCL system bought abt 2 years ago, 256 ram,80 gb cd-rw. From sometime now a strange problem has occured with my system. Actually whenever I start my PC, after few seconds a strange sound creeps in (I know there's nothing abt ram displacement) and then a continous ambulance like tone keeps playing, and then nothing appears on the screen. I am not able to understand what the problem is??
if anybody has faced the same problem earlier or has a clear idea of what the problem could be, please tell me the solution.
eagerly waiting

[Sumeet_naik]

Open the cabinet case. . Check any wiring is loose.. .

[realdan]

http://www.pchell.com/hardware/beepcodes.shtml

[skippednote]

Check whether your ram is properly fixed in their slots and Also check the SMPS whether its working properly....