You are correct about both statements- Prescott addition and the conservative clocking. From all that I've studied, the P4 will take an aggressive tune-up. As I'm new to this whole affair, I would like to start with the FSB frequency and push it a bit. This should carry the CPU and RAM with it, unless I'm mistaken. There is SW out there that will monitor core temps accurately enough for these apps. After the hz tune-up I would like to push the voltage 0.1 at a shot. I do not work the pc too hard- as far as tasking goes in photoshop and printshop, and similar programs, the machine is very quick. I'm having velocity issues with the Facebook/Zynga social gaming network and I think a general clocking tune-up may help. Since I posted the topic, just in the last coupla hours I've installed a Corsair 450w PSU and a PNY 8400GS 512MB video card. Since my OS is WinXP SP3 32b, I can only push the RAM so far- plus, I've got a dead #3 RAM slot in the Goldfish3 MB. I'm running 3 sticks of PNY 5300 RAM and the system is seeing about 2.97 gigs of it. Like I said earlier, I'm very thankful to those of you who respond to my elementary, mundane queries- I'm just interested in learning more! Got an interesting HD issue I'd like to share, however this may not be the appropriate place for it.