On the heatsink test bench today is a 1U server heatsink for Intel LGA1366 Xeon processors. The Dynatron G199 1U server heatsink is built from a skived copper slab measuring 88x90mm in size and 12mm thick. The remaining 17mm in permissible 1U heatsink height is taken up by the 70mm aluminum squirrel cage fan and aluminum fan shroud.