Ram Q

My comp days it can handle DDR SDRAM PC133 does that mean i can use DDR or PC133? or is that a type for SDRAM?

look inside for two differnet types of ram slots

when i was in earlier i didnt notice 2 dif sets but there could be, the ram that came w/ the comp was PC133 128mb chip but the chip i added (128) was smaller than the sotck chip, ( as in it wasnt as tall at the other chip) is it just the different ram brands?

sdram comes in all shapes and sizes. I have a few odd looking ones my self. I got a 64 meg chip thats 2" tall. If it says it supports ddr maybe there is some ddr slots in there. the ones ive seen that take either ram had slots for sdram and two slots for ddr.