yo people .. i am facing a big problem please help me .. am facing blue screen of death alot these days like in every 15 - 20 mins i also reinstalled my os but still no luck .. now i will tell u what happened in the past, after few months of using my computer i faced a display problem for the first time in which the screen was totally blank and there was nothing on it and the monitor's light kept blinking saying no signal is available well it was the first time so i didnt know what to do so i just turned off the power and turned it on again, it worked fine and i was relieved but after few days again i faced the same problem and this time restarting computer didnt work then what i did is remove my graphics card and put it back again and it worked then afterwards i faced this problem several times and i did the same ,removing my graphics card and putting it back again and every time i did that i sweared at my mobo so hard and still i do coz i just hate this motherboard i cant wait to break it .. okay now from a few days i started to face this problem again (blank screen) and this time removing graphics card and placing it back again didnt work damnn u must've seen my face when it didnt work for me

i called a friend of mine and told him about the problem he said remove your ram ,clean it and place it back again .. i did that and it worked but another day same thing again then i again removed the ram and placed it back but it didnt workkkkk then i called my friend again and he said that my ram is faulty , i told him i just bought it 3 or 4 months back how can it be expired in such a short time .. well removing ram and placing it back again didnt work so i did alot of thing like removing graphics card cleaned it put it back again removed ram cleaned it and tested both of the sticks one by one to check which one is faulty but both of them worked fine then i put both of the sticks back and turned on my computer it started fine but after that day i am facing blue screen of death alot like after 20 - 25 mins and sometimes in 10 - 15 mins and now the problem is i dont want to buy new ram or motherboard because i was thinking of buying core i5 in the near future and for that i will have to buy different ram and a different motherboard not with a lga775 chipset .. and the most i can do is either buy a new motherboard or new ram sticks i cant buy both and if i have to buy them both i am screwed no core i5 for me in the near future

so guys what should i do ?
I am very scared because i bought this pc myself all the stuff with my own money and i just turned 17 :P
Thanks mateys ..