Samsung 520U4C/520U4X BIOS P09RAL (RAL)* NP520U4C-A01UB NP520U4C-A01CA BA92-1147B Operating System Microsoft Windows 8.1 (64-bit) Model SAMSUNG ELECTRONICS CO., LTD. 520U4C/520U4X Processor Intel Core i5-3210M @ 2.49 GHz - 1 processor, 2 cores, 4 threads Processor ID GenuineIntel Family 6 Model 58 Stepping 9 Processor Codename Ivy Bridge Processor Package Socket 1023 FCBGA L1 Instruction Cache 32 KB x 2 L1 Data Cache 32 KB x 2 L2 Cache 256 KB x 2 L3 Cache 3072 KB Motherboard SAMSUNG ELECTRONICS CO., LTD. NP520U4C-A01UB Northbridge Intel Ivy Bridge 09 Southbridge Intel HM76 04 BIOS Phoenix Technologies Ltd. P02RAL Memory 7894 MB DDR3 SDRAM -1MHz