JustExtreme:
Generally it's not a good idea to start buying individual computer components when you don't know how to check what motherboard you have and only refer to your computer by the name and model number given to it by the manufacturer.
lol you are a wise person...who does not know how to answer a question. do you nickname your pc or something?

just kidding...dont take it personally!
hp says it supports e6x00 but i do not know whether they updated this since they were written.
Motherboard description
* Motherboard manufacturer's name: ASUS P5BW-LA
* HP/Compaq name: Basswood-UL8E
CPU/Processor
* Socket: 775
* Supports the following processors:
o Intel Core Duo E6x00 with Dual Core technology
* 533 MHz, 800 MHz, 1066 MHz (processor dependent)
Chipset
* Intel P965