I am not so much aware of computer but as per new generation I want to change my computer or I can say that I want to upgrade some part of my machine. So I just wanna know that can I upgrade my PENTIUM IV 3.0GHz with any other processor? I want a processor which much more compatible with my Oldest 775 main board, hard drive of Sam-sung 500GB SATA, RAM of 2GB I tried to install QUAD 9650 but the problem is that my computer not booting up at all. I try this you know why I already bought this processor. If this processor is not able to work with my motherboard, anyone please tell me that what should I do? I am so confused so if you have any idea about any processor which is suitable to my main board?