zombie dj :
so a little overclock is good but not to high without extra cooling. is it worth it? would i gain much performance? i think the clock speed is set at 133Mhz so maybe try 166 and go from there. I also read that increasing the clock multiplier might work but could affect GPU to much, i just got 128MB agpx8 geforce fx5200 that replaced my old 64MB geforce card, but again i dont know enough to be confident that i am not gonna melt stuff. so maybe small steps is the way to go. one thing i noticed when replacing the cpu was that heat sink and fan off the pc cannibalized was an upright fan and radiator type heatsink that seems better (bigger) than my original heatsink/fan however the mounting is screwed unlike plastic clipped, I am sure i could dodgey something up to make it fit but again i suppose if it dont fit right it isnt gonna work efficiently and effectively. the other thing i am trying to figure out is what revision my mobo is so if i come across a higher CPU i might be able to use that. do you know much about mobos?
Thanks for your time i hope im not imposing on you too much
cheers...
For now, just stick with the base clock (BCLK) which is what I assume you mean when you said the clock speed was 133 or 166. You are correct about the multiplier, it will complicate things, but not as bad as newer CPUs since the older ones have a separate northbridge (aka front side bus) and southbridge which are responsible for controlling the RAM, PCI slots, SATA and USB among other things. The newest CPUs have the northbridge and southbridge on the CPU itself which is why changing the multiplier affects nearly everything else in the PC.
As for the CPU coolers, if the one you got from the other PC has a mount that is different from the one you currently have, check the old motherboard. If the old board still has the mount on it and the bolt pattern is the same (same square size) then you can probably remove that mount and install it on your motherboard. I have, in the past and on really old PCs, used zip ties to hold down a tower heat sink. But, when the case is a tower case that stands the motherboard up on its side, this is not really a good idea unless you use like 8 zip ties and they are really tight.
Most likely, the Pentium D and Celeron D is the newest CPU you can use on that board. Even though most Core2 Duo and Quads also use the same LGA 775 socket, they will not work because the chip set (which includes the northbridge and southbridge) is different. You could possible use a higher clocked Pentium D which goes up past 3.0 GHz though I'm not sure exactly what the highest one is. If you get a good enough CPU cooler, you can just overclock it to that speed. But, if you get one with a higher stock speed, it will naturally overclock to a much higher speed itself.