i just bought a pentium 4 chip. (just the chip.)

i have a problem. i previously had a pentium 2 chip. it looks like a sega genesis cartridge. HELP!!!! how can i use this chip.
i have a COMPAQ deskpro, and it is pretty old.

ideas, anyone?By "chip", I presume you mean PROCESSOR. I doubt very much that you'll be able to use the Pentium 4 processor in your aging computer. You really should have researched this before buying a processor. But, I can tell you it's highly unlikely you can use it; you would need a newer motherboard to support the Pentium IV. And, upgrading MOTHERBOARDS in systems with proprietary components, which is often the case with the major computer BRANDS, is a shakey proposition. Standard motherboards may not fit in the computer case. And, the computer may have a proprietary power supply that won't work with a standard ATX or microATX motherboard due to non-standard power connectors on your power supply. Also, the power supply simply may not be adequate for a more powerful system.

If you're not prepared to basically build a new system yourself and you still have the option to return that processor, I think you should return it.A Pentium 4 chip is NOT usable in a Pentium II motherboard. End of story.