|Pentium 4 releases covered 5 years from 2000 to 2005 Chris. Intel was in bed with RDRAM from 2000 'til 2003 but was cheating on the RDRAM relationship with DDR.|
The honeymoon was well over 2 years before your 2003 Gateway was built.
RDRAM was pretty good stuff when introduced but too expensive to manufacture to catch on with customers like me and you. By the time cheaper DDR came into widespread use, RDRAM was effectively dead.
You should know stuff like this if you're gonna give advice; doesn't make any difference if you work in a computer shop or run a shovel for a gardening service.
A bunch of us have passed out some bad advice too...goes with the territory when we reply 4,000, 12,000, 17,000 times. But, knowing someone might be depending on our answers, we also try to do proper research before answering. You need to do the same.