QUOTE(Morlok8k @ Jan 28 2007, 08:20 PM)
if you connected pin 11 to the NC on the plug (with no resistor) - it would be fine cause that is kinda what happens to it when the LED is set for off during activity. 5v comming both ways, causing 0v movement - thus LED is off.
anyways my plan was to do this but mount my LED in my XSATA.
IMO the resistor is VERY important - it's not required in the shown position for people that do the entire mod (ie break the 5v track) - but what would happen if you then took your modded hard drive and plugged it into a standard xbox ? You'd then get unrestricted 5v supply (coming from Pin 14 on the m/b / hdd connector and now going straight into Pin 11 on the SATA drive) being 'shorted' every time you had HDD activity - that's what Pin 11 does as you say. In my book, that is bad, and liable to either blow the 5v regulator on the mobo or blow some of the SATA circuitry due to excess current - the resistor lowers this current to a safe level for both 'modded and unmodded' scenerios, thus that's what I have designed in my tutorial.