[zelienople]

I came across an "Eight Sleep" unit, which is a high-tech system for cooling a mattress topper. Apparently, someone had problems with leaks in the topper section and threw it out.

I took it apart. It has a custom ARM board with a removable 8GB micro-SD card containing the OS. The ARM board has a combo WiFi/Bluetooth unit and apps for Android and iPhone.

Turns out, this makes a heckuva cooling unit for my gaming PC without modification. It is completely silent and easily has the capacity to keep my CPU and GPU frosty. The price to buy one is prohibitive for this application, but the ol' "dumpster dive discount" makes it worthwhile.

I see why it is so costly. This thing is a combination of a robust Peltier heating/cooling unit, a high volume pumping system with auto-prime routines, two excellent Noctua silent fans, and a very capable custom Arm board. It's like a Bed Keurig.

That was fun!