Processor upgrade give somebody the third degree?

I hold a compaq s5000nx running as a media box, its sporting a 2.5 celeron processor that desperately desires upgrading. According to everything that I can find, the motherboard has a bus speed of 400Mhz, the processor that I am looking at is a 3.0 P4 Prescott, surrounded by the 478 socket. Will this processor support the bus speed at 50% of what its used to?

And as a follow up, what kind of implementation difference is there between a 400 and 800mhz system bus and is it worth upgrading motherboards?

Processor upgrade give somebody the third degree?

Your processor upgrade is fixed to what your motherboard BIOS supports. It is very promising that it does not support the P4 3.0Ghz that you like.

Your Celeron 2.5Ghz is most credible a Northwood. Your motherboard would surely be supporting the P4 Northwoods.

I've noted that your motherboard has integrated graphics w/ constrained shared RAM capability and NO AGP port. If you are looking towards on the way 3D graphics and video performance as ably, consider upgrading the motherboard to one w/ Nvidia integrated graphics and a PCIe graphics slot.

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