With IPHost Network Monitor you can run WMI Powered On monitoring of various devices in your network.
To create a WMI monitor for Powered On, provide host name (it must be a Windows host) and specify custom WQL query:
Boolean indicating that the physical element is powered on (TRUE), or is currently off (FALSE).
The Win32_SystemSlot class represents physical connection points including ports, motherboard slots and peripherals, and proprietary connections points.
IPHost Network Monitor is an advanced and easy tool for monitoring LAN and WAN networks, network servers, workstations and TCP/IP devices. Use IPHost Network Monitor to monitor your servers, domains, computers and devices.