I’m having a difficulty upgrading my processor. I have this HP Touch Smart PC Desktop 300-1025 with a motherboard AN APP78-CF JESSE. I was certain that AMD CPU ATHLON II X4 605E 45W AM3 2MB 2300MHZ RETAIL AMD AD605EHDGMBOX meets the CPU specifications but unexpectedly, it didn’t work. The former processor that I’ve been using is this AMD CPU ATHLON II X4 605E 45W AM3 2MB 2300MHZ RETAIL [AD605EHDGIBOX] and it works perfectly. The moment I used the new one, a message appears on my startup which says: “incompatible CPU. ” Now, the problem is, I don’t already have the previous processor. Please tell me what I can do to fix this problem.