I need a new non touch LCD cable as this will be the second one I replaced but cannot remember the part #. Hp list two parts, one for HD display and one for SXGA display. The laptop in running 1920X1080 so I believe that is regular HD display? What constitutes SXGA and regular HD thanks. I feel stupid asking this as I have been building PC's for 10 years but this one has me a bit confused. Maybe it's my age!! Thanks.