Hello, I have an HP Pavillion 520c and I really want to overclock it. I'm new to OC but I do understand that I need good cooling for overclocking. It contains the following: AMD Athlon XP 1600+ Palomino with stock HS & Fan, Asus A7V-ML motherboard, (2) 256MB SDRAM PC 133 Smart Modular sticks, ATI Radeon 256MB X700Pro card, & Stock PSU (not sure how much power). I have tried to change cpu settings in Bios but there is nothing there to change. Can you guys recommend me on some upgrades and suggestions on how to overclock this puppy? Thanks.