well, i disabled the Core Boost and i faced the "pc gets too slow" thing twice only and that's something with chrome i guess..cause i closed chrome and PC was normal then..!!!
And now i still face the checksum error..and 1 more problem has started..the PC doesn't boot at once..i need to hit the ON button 2-4 times and then it starts!!!
Please let me know the possible reasons..so i can rectify the problem...
Yet i haven't changed the CMOS battery...im a bit busy and can't find time for that