Shutdown Not working

andycruce wrote: I have an X79 extreme 6 running windows 10.  Starting a couple of weeks ago the system would not go into sleep mode as directed in the power settings and when I attempted to do a shutdown the computer turns off and then turns back on in about 5 sec.  The only way to turn the computer off is with the chassis power button. I have been working with Microsoft support and they can't find any issues with windows.  All the power control settings are correct.  We also upgraded to the latest Win10 release with no change in the behavior. As far as I can tell there was no event that triggered this behavior.  The machine has worked properly since I build it over a year ago.  Microsoft suggests updating the BIOS.  Anyone have had any similar problems. Thanks for any suggestions.

The problem with updating the UEFI/BIOS is the latest version for your board is the latest version, 3.10, is dated 5/2014, which is long before Windows 10 existed. It is also no doubt a UEFI version that supports Ivy Bridge-E processors, which must be applied carefully and correctly. What UEFI version do you have now?

Can you identify any change that happened that coincides with the start of this situation, a "couple of weeks ago...", as you said. Such as, was that the start of using Windows 10, or did you update to a new version of Windows 10 (Anniversary), or other Windows 10 update? Updates not only fix things, they can break them as well. Many people had problems with upgrade installations of Windows 10 Anniversary.

How did you install Win 10? A clean, new installation or upgrade installation?

Did you install the INF driver ver:10.0.27 and the Intel Management Engine driver ver:11.0.0.1158 from your board's Win 10 download page:

http://www.asrock.com/mb/Intel/X79%20Extreme6/?cat=Download&os=Win1064

What Windows version did you use before Win 10? Sometimes the Windows Fast Startup feature can cause problems like this. That option can be disabled if you open Power Options, and then click on the "Choose what the power buttons do" option on the left.

You can use the Windows powercfg command in a Command Prompt window to try to determine what seems to be waking the PC.

Do you have the Wake on LAN option enabled in the UEFI? Do you use that feature?

You could try a full UEFI/BIOS clear, by removing the board's battery and moving the CMOS clear jumper to the clear position. You'll need to leave the battery removed for an hour or so to insure any residual power has dissipated, and the UEFI chip's memory has been cleared. You'll loose any UEFI/BIOS profiles when the battery is removed, so if your UEFI has the option, save them to a USB flash drive.