According to Intel Arc A7 desktop reviews, the GPUs require at least 41W of power even while the system is inactive. This is much more power than competitive products, which frequently need less than 10W.
Intel’s solution to excessive idle power on Arc A7 GPUs is to modify the power settings in Windows and the motherboard BIOS. The design employs PCIe 2.0 standard L0s and L1 power modes, which software must enable.
According to Intel, these modes are parts of the Active Power Management (ASPM) mechanism built for PCI Express cards. The company states that low-power state functionality in Arc A7 GPUs requires the activation of ASPM L1 mode and the modification of global operating system settings.
Intel recommended the following procedures as a solution. Intel appears to have no means of forcing these changes through their driver; therefore users will have to modify this manually:
For optimal power consumption, configure the BIOS as follows:
•Allow OS controlled ASPM by setting Native ASPM to Enabled.
•Enable PCI Express root port ASPM and select L1 Substates.
Consult your motherboard manual or refer to your motherboard’s manufacturer if you are not sure where to locate these settings. Different manufacturers may use different names for the same setting.
Also, configure Windows* Power settings as follows:
•Go to Start > System > Power & sleep.
•Click on Additional power settings.
•Select your preferred plan and click on Change plan settings.
•Click on Change advanced power settings.
•Look for PCI Express.Click on the ‘+’ sign next to PCI Express to expand the options.
•Click on the ‘+’ sign next to Link State Power Management to expand the options.
•Select Maximum power savings as the Setting using the drop-down menu.
If you are unsure where to find these settings, consult your motherboard’s manual or the maker of your motherboard. For the same Setting, several manufacturers may use different names.
If you have an Intel Arc A7 GPU, try this method and be sure to let us know how it works. Intel Arc A7 GPUs are at the top of the list for power usage. Please note that your results may vary depending on the number of displays or monitor refresh rate.