Hi which model pentium 4 has socket LGA775 was implemented. I mean which model brand hp or compaq or HCL or ibm ? year & model required. I prefer to buy that model so that i can upgrade to latest processors. Another question: Will Pentium 4 with Socket LGA 775 supports any chipset model for upgradation to 1.Core 2 Duo or 2.Dual core processors ? If not pls give me the Chipset models support for the upgradation. My plan is buy used pentium 4 LGA 775 & upgrade to new processor(only processor using same motherboard of the old one) which eliminates/reduces cost for upgradation. Is this right plan or is there any complication in upgradation.