The topic title says it all. I'm interested cause I've inserted two 64mb ram cards, one 128 and one 256, so it now comes to a total of 512mb ddr ram, which should be more than enought for the computer to browse the internet, play movies, music, etc... Also, how important is it that all memory cards inserted must work at the same rate? Could that cause some problems? But sometimes it just freezes, and must be restarted. I doubth it's softwere related, seeing as I've instaled Linux a few weeks ago. Thanks for reading .
generally it's best to place the larger DIMMs (memory cards as you call them) closer to the CPU, the most major problem (usually) is the fact that all installed RAM will only operate at the speed of the slowest DIMM inserted in a system, you could always run memtest86+ then you'll know if your RAM is functioning properly that's another problem that also suggests faulty RAM
