you can put the ram in and use it. but it will run at a slower speed (400mhz, 333mhz, whatever you have it set at in the bios). to get it to run faster than 400mhz, you'd have to set it to 400mhz and increase the fsb... which will increase your cpu and memory speed. aka overclocking.
Right, i know the PCI and the AGP slots have to stay around a certain level or speed, but never knew it also increases the ram speed too. So in other words, "overclocking" overclocks everything "so to speak" not just the cpu and pci,agp ?
yeah, you overclock the chipset. which, of course, everything interfaces with. :blink:
actually, i think newer boards like the nforce2's can keep the agp slot at a steady 66mhz while you overclock the cpu and memory. i'm not sure about other boards or if this steadies the pci slots, as well.
On most newer boards, you have the option to lock agp and pci speeds. You can also usually select a memory divider which allows you to run the memory asynchronously (sp?) to your fsb, but generally p4's only benefit from running async.
Overclocking overclocks: cpu, memory and pci/agp (depending on board). Note that if you don't have a pci/agp lock for your mobo, the IDE channel also runs at a higher frequency so be prepared for hard drive corruption if you go too high.