Technically you might be able to install & run windows XP on your n-Series machines from Dell. However Dell support site www.support.dell.com will have drivers only for OS which has been tested on product.
Before installing the XP operating system I would recommend you to check if compatible drivers exists.http://www.dell.com/support/drivers/us/en/19/DriversHome/NeedProductSelection
In case you do not find all drivers and still want the drivers for Windows XP you must contact the original Hardware manufacturer websites. Such as for your Intel chipset from:http://downloadcenter.intel.com/
Note: Dell doesn’t recommend downgrading your machine to Windows XP.
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