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What is ErP in BIOS? (Know The Detailed Answer)

What is ErP in BIOS? This has to be one of the most frequent topics when it comes to BIOS appears to be ErP. Many of us don’t even have an idea about it. Why is ErP even important? Let’s find out. In this article, we’re going to learn the ins and outs of ERP.

In the context of BIOS, ErP is considered to be an exceptional feature. ErP is apparently the short form of “Energy-related Products”. As you can tell, The products that are accountable for energy consumption within a system or which specifically use energy, are considered as ErP. Let’s learn more about BIOS and ErP.

What Is ErP In BIOS?

ERP is an exceptional component when it concerns BIOS. It keeps the PC from depleting energy. So, how does ErP do that? That is, by closing all the widgets that consume energy. ERP represents a particular capacity, an inherent software that assists with saving our PC from energy depletion.

It works with the idea of not burning more than 1W of power when the system is turned off. When this particular setting is enabled, four of the following functions will become unavailable:

  • Wake up with Power Management Event (PME)
  • Wake up with Mouse click
  • Wake up with Keyboard key press
  • Wake up with LAN

When we stumble across ERP, there are a few things that need to be clarified. By enabling ErP, we help our computer to stop waking the system from a full power-off state with something besides the on/off switch itself.

On the other hand, when we disable ErP, we can simply just click on anything for example any button on the mouse or any key on our keyboard; it’ll even work if a packet is sent to the NIC. Moreover, it won’t affect waking up from sleep.
The reason for using ErP is ecological. When you turn off your computer, your motherboard ensures that it has barely enough capacity to get the signal when you turn the PC on, from its associated components. Does this value change when you enable ErP? Yes, in that case, the motherboard permits itself to perform a full shut down.

Should I Enable ErP?

One of the most frequently asked questions about ErP is whether or not you should enable it. To get a proper answer to that, let’s quickly go through the benefits and drawbacks of enabling ErP on your system.

Benefits of enabling ErP

  • In general, ErP is completely harmless when you boot your computer and operate it.
  • ERP puts a stop to all the devices that consume power and helps the system in energy preservation.
  • By enabling ErP, you can help the motherboard reserve energy for the next time the computer is powered on.
  • When your computer is on standby mode, even with ErP enabled, all the components work just fine.
  • ERP turns off all the LED components that it can, to avoid excessive power consumption.

Drawbacks of enabling ErP

  • When sleep mode is activated, you cannot simply wake your computer up by pressing a key.
  • When ErP is enabled, you won’t see the power saving and handling options show up like it normally does.
  • USB devices will not be working when ErP is enabled, which is, the biggest drawback.


What Exactly is BIOS?

Most of us PC enthusiasts are familiar with BIOS, also known as the Basic Input Output System. In an x86-based system, BIOS is what boots up the operating system. It’s basically a chunk of routines that usually dwells in firmware. However, in the new generation system, UEFI takes over BIOS, making UEFI the start-up system, not the BIOS.

The BIOS provides device drivers for the basic peripheral support which is a part of the motherboard, including the keyboard, mouse, display, and hard disc. BIOS starts working before loading the operating system. Wonder what allows you to edit the configuration settings? Well, BIOS does. It allows you to edit configuration settings and boot the system from whatever storage device you have.

What Does BIOS Do?

Ever wondered what tests and prepares the system in your computer? The answer is BIOS. After it has finished its tests on your system, it prepares the system for the operations and settings that you’re going to configure on your computer. Usually, it works based on the hardware.

BIOS basically makes operating your system easier for you, by initializing essential components like RAM and the PCI bus. When you boot your system, the BIOS gives the schedules important to test and design the equipment and utilize the fringe gadgets remembered for the motherboard.

After you boot your system, more detailed drivers are regularly stacked over the BIOS schedules. Your system remembers the date and time that you set up initially, even when your system is offline. How does the computer do that, you might ask. Again, BIOS supports this service and makes it work.

Final Verdict

Enabling or disabling ERP plays an essential role in the BIOS of your system. That’s why you need to have a clear conception of ERP. Hope this article helped you understand ErP for the proper usage of your computer. We have tried our best to answer What is ErP in BIOS.

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