You need to check that on the momery installed on your computer or if you can find the brand and model of your motherboard(mobo) you can find what memory you need by going to the manual of the mobo (you can go to the mobo's website and check the manual, it will list the compatible memory module fo your mobo).
Answers & Comments
What Ram u are using SDRAM? DDR? or DDR2?
try to open ur desktop cpu casing then and there is a label in the memory if it is a SDRAM? or DDR? or DDR2?
caution!!!!
put the exact memory!!! read if it is SDRAM? or DDR or DDR2
if it is different it my cause damage to your motherboard
You need to check that on the momery installed on your computer or if you can find the brand and model of your motherboard(mobo) you can find what memory you need by going to the manual of the mobo (you can go to the mobo's website and check the manual, it will list the compatible memory module fo your mobo).