There's a file floating around on the Internet named "K43SV boardview", which contains a layout of the PCB - upon which you can find that your component of interest is L4601, so it is an inductor. I have not been able to find the schematic for K43SV (it's NOT a Quanta SW9, contrary to what some postings have said - the component designators are completely different; plus, Asus tends to design these themselves) but you could probably figure out its purpose by tracing out the circuit around it, match that with similar laptop models (for which there are schematics available), then determine the value used there. There's also a "K43SV repair guide" pdf you can find, which hints at there being a schematic...