I'm not sure if this counts as a mod or not, but I thought people might be interested to see an early stage of a DIY Arduino controlled Watercooling control station. The general idea is to get 3 channels of fan output and 1 for pump with the speed of all of them independently controlled dependent on water/ambient temperature differences. Its presently more or less finished on breadboard (code works, just need the output stage building). General idea is you load into a monitoring screen like this: then use the rotary encoder (twisty looking thing in the middle top of the photo) to load and navigate a series of menus which allows you to configure things like fan turn on temperature, temperature you want to be at full load by, turn on speed etc. (I'm going to add a couple of additional parameters here, things like a max water temp override that sticks everything to full at a certain water temp regardless of ambient). I've put a video of me navigating the menus (and losing the knob off the encoder) here Its presently out of the case and not running an output stage pending the arrival of more inline thermistors (i'm using ordinary ones as substitutes for now), but you can see the % output to use to the right of the screen. If anyone is interested let me know and I'll be happy to share the code and schematics so people can make their own.