Same Model?

I know AMD recommends using the same brand of RAM for all slots, but does it have to be the same model too? I have Samsung K4H280838C-TCB0 256MB PC2100 DDR SDRAM right now. If I upgrade, so I need to get this exact model? Or as long as it's Samsung, I'm OK?

You don't need to get the same model. But remember if you have one stick that is PC3000 and one that is PC2100, you will still be held back by the slower stick.

Thanks for the reply. Let me get my hands on some new Samsungs.