The underlying reason is that , not the official marketing model name. Sony stamped this chassis number on the bottom regulatory sticker of several variations of the Sony VAIO VPC-EC series —specifically large-format, 17.3-inch multimedia laptops released around 2010.
The VAIO PCG-91112M comes with 4GB of DDR3 RAM across two slots, which is usually sufficient for Windows 7 or lightweight Linux distributions. However, the system can support up to a maximum of 8GB (4GB x 2). For users experiencing slowdowns on modern web browsing, upgrading the RAM to 8GB is the single most effective performance boost. sony vaio pcg-91112m specs
Intel Core i3-330M (2.13 GHz) or Intel Core i5-430M (2.26 GHz / 2.53 GHz Turbo) Mobile Intel HM55 Express Chipset Memory (RAM) 4 GB DDR3 SDRAM (Standard) Graphics (GPU) The underlying reason is that , not the