Surface Pro 3 High CPU load when idle, high system cpu load

Anonymous

Has anyone else noticed that coming out of sleep or herniate results in unwarranted high cpu load from system interrupts?

I have all the latest firmware and updates loaded. But using sleep even sometimes a cold boot I get this issue.

How can I fix this please. Its killing my battery life.

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Anonymous

Hi jiachengguo,

Thank you for reaching out to the Microsoft Community! Sorry to know that you are facing battery issues with your new Surface Pro 3. I can see how concerning this is to you, so please know we will do our best to help and guide you in the right direction!

In order to better assist you, I will need to gather a few more details:

Have you made any changes to the power settings? And if so, what exact changes have you made?
Do you have any startup or background apps running?
Do you have a micro SD card inserted or any accessories and Bluetooth devices connected? If so, please disconnect or remove any external accessories and test it again.
Have you restarted the Surface and then set it to sleep after the restart? If not, please do so as well.
Have you tried resetting the power settings back to the default settings? If you haven't, here is how:

From Desktop, swipe in from the right edge of the screen and open the Charms menu
Select Settings
Select Control Panel
Select Power options
Select Change plan settings
Select Restore default settings for this plan
Select Yes
Restart your Surface

Additionally, for further reference, all available battery information and tips on how to make it last longer, can be found in the next support article that applies for Surface Pro 2 and Pro 3:

Surface Pro battery and power

We hope this information proves useful. Please keep us posted!

We are here to help!

Best Wishes,

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Anonymous

Oh!! I just checked it again as I wanted to make a screenshot and now it's working! I don't know what changed. The only thing I did was that I originally enabled Hyper-V but when it started interfering with my WiFi connectivity I disabled it again, so maybe that's what was necessary.. I used to have constant high "System Interrupts" process running, but disabling one by one I found out that an Adobe startup process was causing it, so I disabled it and it seems to have fixed the issue. Either way, thanks for your responses!

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Anonymous

Dear Clare,

No, this is not what I was asking. Please refer to the original question.

Perhaps you may have something running in the background.

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198 additional answers

Anonymous

2014-07-28T22:00:08+00:00
Hi Chris,

Thank you for your response and answers to my questions. So the issue appears after the device wakes up from sleep and a complete shut down.

I see that you have the Type Cover and a microSD card. Have you tried turning the device on (from a cold boot, a restart, or sleep) to see if it makes any difference?

That's interesting how you found that the sound might have something to do with the CPU load. Was the sound turned off when you found out about this problem? What happens if you turn the volume on/up, let the device to sleep/shut down, then turn it back on? Even if the sound was off, after waking the device and turn the sound on, does the problem disappear?

Let me know!
Hi,

I have found that without the SD attached I have less chance of this happening. Cold boots it can still do this as I shutdown and then booted from a cold start and struck the issue.

I found that when I watched the CPU use % in task manager when playing Audio the system and system interrupts would stop hogging the CPU and things would return to normal. Once I stopped playing the MP3. It would return.

Volume up and down. Mute make no difference.

Again it seems to be connected to the Realtek audio driver or MircoSD card slot?
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Anonymous

2014-07-28T20:56:31+00:00
Hi Chris,

Thank you for your response and answers to my questions. So the issue appears after the device wakes up from sleep and a complete shut down.
- I see that you have the Type Cover and a microSD card. Have you tried turning the device on (from a cold boot, a restart, or sleep) to see if it makes any difference?
- That's interesting how you found that the sound might have something to do with the CPU load. Was the sound turned off when you found out about this problem? What happens if you turn the volume on/up, let the device to sleep/shut down, then turn it back on? Even if the sound was off, after waking the device and turn the sound on, does the problem disappear?
Let me know!
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