adding memory in compaq

I have a compaq presario 5151 which hold up to 384mb of ram. Currently it has a 64mb pc100 sdram and a 32 mb chip. I purchased kingston 128mb pc100 sdram chip. I installed it and didnt recognise the new chip, but it did boot up errorless. Well Itook out the chip and found out I have to install a soft pack which updates the rom to recognize 128mb chips. My question is does it matter which bank each chip plugs into. For instance do I have to put the largest chip in the first slot or anything like that…