Hi I need advice I have a laptop dell inspiron 1520 32 bit operating system, Intel(R) core(TM)2 Duo CPU T5250 @ 1.5 GHz, Ram 2 GB. I would like to upgrade ram memory form 2 GB to 4 GB just want to make sure it is okay for me to do that before I buy the new ram . Any advice please help. Thank you.