Dell Precision M6600 vs M6400 Hardware (Overview & Disassembly) – Darwin Mach
Upgrading my m6400 for max performance! | Overclock.net
Laptop, Dell Precision M6400, Core 2 Duo T9550 2.66Ghz Processor, 4Gb Ram, No Hdd, Dvd-Rw, Vista Business Licence Sticker, With Charger, Appears To Function [91190+39]
Dell Precision M6400 Covet review
Dell Precision M6800 17.3in Laptop Business Notebook (Intel Core i7-4810MQ, 16GB Ram, 500GB HDD, NVIDIA Quadro K3100M, HDMI, DVD
Dell Precision M6400 Mobile Workstation Details | Dell USA