If you are looking for the actual files to repair this motherboard, you can find them on specialized technician sites: Schematic PDF : Available on (109 pages, 2.64MB) and BIOS Files
Iris BSW MB 14279-1 is a specific motherboard schematic for the Dell Inspiron 3452 and 3552 series laptops. Manufactured by Iris Bsw Mb 14279-1 Schematic Pdf Download
The smell of burnt flux and ozone hung heavy in Elias’s small repair shop. On his workbench lay a dead Dell Inspiron 3552—a "no power" case that had already defeated two other shops. The client, a PhD student, was desperate for the data on the eMMC chip. Elias knew the board by heart: the Iris BSW MB 14279-1 If you are looking for the actual files