The OpenMicroServer is kind of an "extreme" use server pushing the boundaries for normal, low-cost hardware. In a 624-day endurance test, the OpenMicroServer performed normally under 122 degrees F conditions. The unit also employs a power efficient AMD Alchemy (MIPS) CPU and precise part placement based on thermo-fluid analysis to achieve semi-hermetic construction. It can handle down to the freezing point (0 degrees C), too. Detailed hardware specs are here.