I just added a DDR512 2700 333mhz to my Dell Dem 4400. I took out a crucial 256mb ddr 266mhz pc2100. I already had a 512 -266mhz in there.
After the install the os does recognize 1 gig of ram so that is cool, but what problems could arise from this if any? I bought the ram for another system which does not need it and it was on sale at fry's for $29 so I hate to take it back.