1920x1200 in 23" or 24" were an OK upgrade from 1600x1200 CRT 21" for me. I did the stuff you did on an 18" 1280x1024 SPVA LCD from Fujitsu-Siemens. Since I hadn't soldered for a long time, I just bought that stuff 2 times, because the parts were a few cents only. Didn't need them 2 times, though :-) Worked for some mainboards in similar ways. Except I've been afraid to completely desolder them on mulitlayer mainboards, for fear of destroying the VIAs/through-holes. Just pulled the capacitor from it's pins still stuck in, cleaned them, and soldered the new one(s) onto the old pins. Looked like sort of a water tower in miniature, but the boards worked flawlessly afterwards. For years :-)