Comment by wokkel

Not only server. If you have a Q-series desktop motherboard with AMT you can enable Serial-Over-Lan and access the machine remotely (and power on/off or reset it as well). Q series chipsets are also found on Fujitsu/Dell/HP prebuilts which can be picked up quite cheaply when companies decide to upgrade. For servers you usually have IPMI/iDrac etc. which uses more power, but usually has a better (web)interface.