bring ur manual to the shop, give to the salesperson and ask him
for 2 sticks of RAM of 1GB each
go home, open ur cpu, see where ur present in-use RAMs are, unlock
both sides (left and right), take both out, put those 2 tat u
bought in, lock it on both sides for both RAMs, ensure that nothing
is left inside ur cpu, close ur cpu, switch on ur com and it will
run abit more faster