 Hello, this is Laptop Media, and today, we will show you how to open the Dell Latitude 155331 and what's inside of it. To get inside this notebook, you need to undo 9 Philips head screws. Then, pry the bottom panel with a plastic tool and remove it from the chassis. Please remember, it would be of great help to us if you just hit the like button and subscribe to our channel. That would motivate us to make even more and better videos for you. Our unit comes with the smaller of two battery options. It has a capacity of 64 watt hours and lasts for more than 10 hours of web browsing, or nearly 9 hours of video playback. The upgrade options include two Sodom slots for up to 64GB of GDDR5 memory. In addition, you get two M.2 PCI-EX4 slots, which can work in RAID mode, as well as a 2.5-inch SATA drive bay. Here, the cooling comprises two thick heat pipes, shared between the CPU and the GPU. Both the fan and the heatsink have quite a thick profile. If you'd like to see more disassembly videos of the latest notebooks we would highly appreciate if you hit the like button and subscribe to the channel.