I have an old Dell Dimension 8200 (it's now a little over 5 years old). It has 512MB of RAM and I was thinking about upgrading it. I've been reading that since it runs with RDRAM (PC800, 184 pin RIMM) that I should only put that kind of memory in there. My friend (who has upgraded memory in a countless number of systems but is no technician by any means) says it's ok if I put 2 256MB DDR memory modules in there (I know that the system requires memory modules to be installed in pairs). I don't think it's a good idea to put the DDR in here, but I wanted to know for sure. I was thinking that I just buy two of the PC800 RDRAM modules. Thoughts?