Disassembling
The e-TRAYz is much easier to disassemble than the Xtreamer. 12 screws are to be removed (or 14 in total if you want to change LEDs or the buzzer) but while doing so, I never had the feeling I would break something because the e-TRAYz is a really well-made brick.
Of course I have to warn you once more that - surprise surprise - disassembling the e-TRAYz will void warranty. But as mentioned there isn't much you can damage unless you are very very clumsy and careless. In that case, keep your fingers from the screwdriver :)
Follow the below images and their descriptions to see how to make your way through to get to the chips and the fan.



