Click on your operating system below and follow the instructions to configure power management features on your computer. Note that your monitor may already enter a low-power sleep mode when the computer is inactive, but the computer itself may not. There are two separate settings: one for the monitor, and another for the computer.

You will:

• Save $10-100 per computer annually in electricity costs
• Eliminate the need to boot up your computer each morning, saving time
• Help the environment by reducing air pollution associated with the burning of fossil fuels

Do you require remote access to your computer?

How to disable PCIe power management in Windows 7, 8 and 10 The optical transceivers used in the Adnaco PCI Express over fiber optic expansion systems do not support PCI Express link power management. Therefore, it is recommended to disable all power management features in the computer. Below are the step-by-step instructions for Windows 7, 8. Link state power management: PCI Express needs a continuous stream of data from the PCI Express device to the computer to keep them in.

If you remotely access your desktop computer (via Remote Desktop, for instance), you may need to make some adjustments so that your sleeping computer can be awakened. For more details, see Remote Desktop for Sleeping Computers.

Situations That May Cause Windows Computers to Not Sleep

Under certain conditions, Windows-based computers may not drop into sleep mode despite being properly configured to do so. For example, the following conditions may prevent computers from entering sleep mode:

• The PC has a file open over the network – e.g., on a network server.
• The computer uses a graphics-intensive screen saver. (ENERGY STAR recommends disabling them.)
• A Microsoft PowerPoint file is in “presentation mode.”
• Processor activity is above a certain threshold, indicating that the computer is not idle.

It is also possible for a network administrator to allow certain applications to 'veto' sleep mode. This setting cannot be configured via the computer’s Control Panel, but network administrators can use Group Policy to do so.

Configures the link power management mode for disk and storage devices that are attached to the system through an AHCI interface.

Aliases and setting visibility

• Windows provisioning:N/A

• PowerCfg:N/A

• GUID: 0b2d69d7-a2a1-449c-9680-f91c70521c60

• Hidden setting: Yes

Values

Applies to

Available in Windows 7 and later versions of Windows.