|Look on line 6 of the motherboard specs in the link I gave above...says mPGA478. That means Pin Grid Array/478 Pins.|
Northwood Desktop processors come in 3 flavors; Northwood A is 400Mhz, Northwood B is 533Mhz, and Northwood C is 800Mhz. These are all 20kb L1 and 512kb L2 cache. Next step up the ladder is the Prescott Core P4's with 28kb/1Mb. The Prescott cores draw more power and run quite a bit hotter.
Look at line 17 of the motherboard specs.
PC3200 (400 MHz),
PC2700 (333 MHz),
PC2100 (266 MHz)
IMO, the only reason that thing came with PC2700 instead of PC3200 was to cut costs.