According to Intel Arc A7 desktop reviews, the GPUs require at least 41W of power even when the system is idle. This is much more power than competing products, which often require less than 10W.
Intel’s solution to excessive idle power on Arc A7 GPUs is to change the power settings in Windows and the motherboard BIOS. The design uses PCIe 2.0 standard L0s and L1 power modes, which software must enable.
According to Intel, these modes are part of the Active Power Management (ASPM) mechanism built for PCI Express cards. The company states that the low-power state functionality in Arc A7 GPUs requires the activation of ASPM L1 mode and the change of global operating system settings.
Intel recommended the following procedures as a solution. Intel doesn’t seem to have the means to force these changes through their driver; therefore users will have to change this manually:
Configure the BIOS for optimal power consumption as follows:
•Allow OS-driven ASPM by setting Native ASPM to Enabled.
•Enable PCI Express Root Port ASPM and select L1 Substates.
Consult your motherboard manual or your motherboard manufacturer if you are not sure where to find 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 Additional Power Settings.
•Select your preferred subscription and click Change subscription settings.
•Click Change advanced power settings.
• Search for PCI Express. Click 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 Energy Saving as the setting using the drop-down menu.
If you’re not sure where to find these settings, check your motherboard manual or motherboard maker. Different manufacturers may use different names for the same setting.
If you have an Intel Arc A7 GPU, try this method and let us know how it works. Intel Arc A7 GPUs top the list for power consumption. Please note that your results may vary depending on the number of screens or monitor refresh rate.