Windows 7: Help with 0x000000124 BSoD

so yeah i have this problem with this blue screen error for months now..
i tried the following solutions..

1. i bought a new video card and had it installed.. (didn't fix my problem still the same BSOD)

2. i went to the pc shop where i bought my pc and ask for assistance on the said matter and they said i should change my hard disc and i should increase the RAM ..im no pc expert so i just gone with them.. bought a new hard disc thing from them and let them work on it..
>> the blue screen was gone for some time.. like a week or so.. but when i start playing..
Dragonica.. BSoD shows up again, up till now i could not use my pc for playing games (intense gaming).

3. i searched for some other solutions on google .. tried the registry boost program aswell but it didnt do the job aswell..the BSoD still persist ..



can you please help me?.. now their saying i should buy a new motherboard and im like half broke from all the pc expenses ive been through you guys are my last resort.. hope for your immediate reply thnx.

Please follow these instructions
http://www.sevenforums.com/crashes-d...tructions.html

Stop 0x124 - what it means and what to try