You need to find out the PLL (clock generator) in your system by opening up the netbook and looking for it on the mainboard. Once you know this you can see if it's supported by SetFSB or CPUCool. If it's not you can ask Wolfram @ CPUCool to support your PLL, as unfortunately the creator of SetFSB no longer updates SetFSB.
Sometimes PLL's are TME (trusted mode enable) which means that no overclocking is allowed. If this is the case, then a hardware pin mod is required (i.e. you physically need to cut a specific pin coming from the PLL and re-route to a GND terminal). It's not for the faint-hearted.