I'm currently using DELL 1520. Last month just bought a VIGO NINJA cooler at RM89 at Carrefour. It is stated the speed is 3000rpm which I think is quite fast compared to other cooler available. But after a week using it, I found that the cooler didn't cool down a lot and the temperature is more or less the same without the cooler , around 55 degree when idle and 68-73 when play games (is it normal?). So, I've refunded it back to Carrefour.

Then later I go found out that other cooler such as Cooler Master Infinity and other at ALL IT all have rotating speed @ 2000 rpm only, so my question is, even the VIGO NINJA which is full aluminium and 3000 rpm didn't make such a difference to the temperature of my laptop, then how about others cooler? Are they useful ?

(p/s: I've heard that 1520 has a really good heat flow and didn't need a cooler at all. anyone can verify this? I've feel that my fren's ACER with X700 graphic card is hot like hell even with those cheapo cooler, so maybe it is true....)