Manuals and User Guides for HP C771US - Presario 15.4" Widescreen Notebook Computer. Intel Dual-Core T2390 1.86 GHz. We have 9 HP C771US - Presario 15.4" Widescreen Notebook Computer. Intel Dual-Core T2390 1.86 GHz manuals available for free PDF download: Maintenance And Service Manual, User Manual, Network Manual