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Cracking it open
On the Zotac EN1070, all of the relevant expansion was mounted to the underside of the mainboard. That made it easily accessible by removing the bottom panel of the case. Getting into the Trident is a little more involved, although still pretty easy. Assuming the machine is laying down, the right-side panel simply snaps out of the machine. Underneath, there are five screws. Remove the top two, and then the top panel slides off easily.

With its guts exposed, we can see the sideways PCIe x16 slot where the Trident 3's graphics card connects to the mainboard. You can also see the wireless card in the top-right, the two SODIMM slots to the left of that, and the 6-pin PCIe power cable just further left of that. At this point, you can replace the memory, remove the CPU cooler for cleaning (or to replace the CPU,) and replace the wireless card. If you want to remove the graphics card or a storage device, though, you'll have to disassemble the rest of the machine.

I struggled a bit with disassembling the machine further, because it seemed to me like I would have to remove all the plastic fascia pieces to take it apart. It turns out that I underestimated MSI's cleverness here, because I absolutely didn't. Instead, I just had to unfasten two more screws underneath the same panel on the side of the Trident 3, two screws in the frame itself (at the top-left and top-right corners of the picture above), and another screw underneath the motherboard. Thankfully, MSI left a hole in the motherboard specifically to allow you to get to that screw.

Once I removed those screws, I had to grip the chassis on the back with one hand and the front with the other before pulling the entire chassis away from the front of the machine. The motherboard tray will come free of the front bezel and the baseplate. After that, all of the parts are very easy to get to. Two screws in the back of the case and another one in the floor of the tray hold in the graphics card. Meanwhile, the storage devices are mounted just below the video card, in a flat chamber underneath the motherboard tray.

On the whole, I was pretty impressed with the build quality of the Trident 3. Everything fits together really tightly. There are a lot of screws holding this machine together, but that just means it's solidly-assembled. I was surprised to see how few fans the Trident has inside, though. I didn't notice the missing spinners until I saw the storage devices. As soon as I saw them, my first thought was that they must have pretty limited airflow. In fact, the whole machine has pretty limited airflow because the only fans in the entire system are the single intake fan on the graphics card and the exhaust blower on the CPU.