Samsung NP-R503-DS01RU BIOS ID: Work Dump ver: 04VB 11/11/2009 + Windows BIOS Update ver: 05VB Model: NP-R503H MB: Samsung Cambridge Rev: 1.0; PCB Code: BA41-00960A EC: F2110BTE10V H8S/2110BV Flash (U527): MXIC MX25L8005M2C SOIC-8 (Phoenix)