mikehunts2big :
the celeron 2.20ghz processor was a 478 socket. so was the pentium 4 3.4ghz processor. i was told it just wouldn't run at it's top speed, only about 266
The d2244 is a Celeron 2.2 system from the factory.
You are correct. However, instead of running at a reduced speed, it wouldn't run at all. That motherboard only supports 400/533FSB processors. The fastest commonly available processor is a 3.06GHz Northwood Pentium 4. The fastest 533FSB chip out there is a 3.2 Prescott Pentium 4 Mobile, but it's technically a mobile part, and i'm not confident that motherboard would like it, even though it's a socket 478. I know aftermarket Asus boards back in the day would run P4 Mobiles, but i'm not going to have much faith in an OEM eMachines board. I'd go get a 3.06 on eBay for < $10 and call it done. Just make sure your heatsink is up to the task. It'd fly compared to a celery 2.2.