Because it is set either through the BIOS or through your network card’s firmware, you don’t need specific software to enable it. Your Ethernet or wireless card must also support this functionality. Your motherboard must be hooked up to an ATX-compatible power supply, as most computers in the past decade or so are. Wake-on-LAN is dependent on two things: your motherboard and your network card. Anyone who uses a program like VNC or TeamViewer, or keeps a file server or game server program available, should probably have the option enabled for the sake of convenience. This is useful if you plan to access your computer remotely for any reason: it allows you to retain access to your files and programs, while keeping the PC in a low-power state to save electricity (and of course, money). The protocol also allows for a supplementary Wake-on-Wireless-LAN ability as well. The definition of “low power mode” has changed a bit over time, but we can take it to meanwhile the computer is “off” and has access to a power source. Wake-on-LAN (sometimes abbreviated WoL) is an industry-standard protocol for waking computers up from a very low power mode remotely. RELATED: How to Enable Wake-on-LAN in Windows 10 and 11 What Is Wake-on-LAN? Here’s how to enable Wake-on-LAN in Windows 11 and 10. Update, 11/18/21: Wake-on-LAN might be an old-school trick for turning on computers remotely, but it still works. Wake-on-LAN (WoL) has been around for a while, so let’s see how it works and how we can enable it. It probably sends the MAC address as a "Magic Packet", and if the NIC receives it, that will power on the PC.Technology often yields ridiculous conveniences, like being able to turn on your computer from miles away without pushing the power button. I don't know exactly how it works, but I assume all it needs is the NIC's MAC address.
Newer NIC's, or mainly the onboard NIC's of mainboards don't need an EPROM for that to work, they use NVRAM (so there is no extra socket for the EPROM, the NVRAM chip is rather already soldered on). That way you could boot directly from an OS image on a server, or also install the OS directly from the server without any boot media. With that EPROM you were able to set it up to boot directly from the LAN (for example when there was no physical boot media or HD in the PC).
NIC cards, particularly old ones, have a socket on them where you can insert an EPROM. NVRAM or EPROM's are used to boot from LAN, and not for Wake on LAN. It has nothing to do with NVRAM or EPROM. It isn't a setting in the OS for the adapter.
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