mobo beeping

[quadroplex780]

First eterna why did u use sify's connection without a switch.I too have sify's connection but I installed a switch as fast as I could.So get a switch to protect your pc when connecting lan to a internet cable.
On more thing,the onboard lan got fried but maybe the new lan card u got is not properly inserted or is defective.So try removing/reinstalling the new lan card.

 

[entrana]

working fine bro. my isp has switches in his place and my connection comes from his switch . all his switches got fried too cost him 7k!!
i just had to clean up my pc and the temp dropped by 15degrees. now its running on 39 at idle and 50 in load. during the problem it was running at 63 in load so i guess that may have caused the prob. also i switched off system speaker