Does a RAM upgrade have to match brand & specs exactly?

[Natarian]

Hi, I would like to upgrade my RAM. I currently have 2 X 512MB sticks of Geil PC4300 533MHz RAM. I want to add another 1GB, does my upgrade have to exactly match the RAM specs I have at the moment, regarding the brand as well? I have two memory slots free.

I would appreciate any comments or suggestions, even on which exact models. Thanks a lot.

 

[Natarian]

So there's really no point in buying RAM that's any better than what I have got because the new RAM will only run at the levels of what I already have hu.