PC awakes from sleep and in 1-2 sec. powers back off.....

At WAKEUP from SLEEP, flashing power LED will go solid green , fans will spring to life for approx. 1-2 sec. and then immediately power OFF. Mouse, keyboard, power and reset buttons have no effect. Only option is to switch off power strip for a second or so and then reboot. The sleep issue came up only after I recently upgraded my motherboard from a Gigabyte GA-MA78-DS3H (DDR2) to an ASUS M4A87TD-EVO (DDR3). I used my same hardware and only the motherboard and memory were changed. It was a rather smooth transition except for the sleep issue. I will just say, I have tried and tested every fix I could find and will attempt to list them at the end of this post along with my hardware. First thought maybe a power supply problem but seem to eliminate that as hibernate works well, just not my first choice.

Hardware:
... HD with all updates Win 10 Pro Ver.1809 Build 17763.195
... Processor AMD Phenom II x4 955 Black edition 3.2GHz
... 8GB of 1333MHz Samsung RAM
... NEW 400 watt ATX power supply
... NVIDIA GeForce GTX 1050ti GPU
Software envirenment:
... Windows Defender and firewall only
... Newest chipset drivers for Win10 from AMD site ( no Win10 at ASUS site)
... Newest graphics driver from NVIDIA site (clean install) … tried others as well
... Newest bios with "suspend mode" set to AUTO (tried S1 and S3 also)
What I have tried:
... RAN sfc /scannow and found nothing
... RAN Windows "power" troubleshooter
... Tested my memory modules
... disabled FastStart
... tried both "balanced" and "preformance" power plans
... tried "restore plan defaults"
... both mouse and keyboard set to "allow this device to wake computer"
Advanced Power Options:
... turn off harddrive (0) never
... sleep after (10)
... allow hybrid sleep (no)
... allow wake timers (enable)
Have I missed anything ??
And just about every other combination for SLEEP. With sleep disabled and hybrid sleep enabled it will hibernate just fine so that should eliminate power supply problems. Also the event viewer shows nothing short of a few"Event ID 10016" errors. The reboot will showup as an "event 41, Kernel Power" (the system has rebooted without cleanly shutting down) but thats about it. I`m willing to try about anything short of a fresh install unless I have to. Any help would be appreciated. Thanks

Caledon Ken said:

Is it safe to assume it slept well under 1803 and this started when you installed 1809.

Actually, It came about when I swapped motherboards and memory. The 1809 upgrade came when I was still using the Gigabyte MB and all worked fine. I will create the diagnostics report and see what that shows. Thanks for the link.

That's a very nice command line tool I was not aware of before. Thanks. The html command generates a good amount of useful info, most of which confirms the settings I have in there now. Several things of interest:

Platform Power Management Capabilities: Supported Sleep States
S1 Sleep Supported true
S2 Sleep Supported false
S3 Sleep Supported true
S4 Sleep Supported true

Device Drivers: Analysis Success
Analysis was successful. No energy efficiency problems were found. No information was returned.

So I can assume I have all correct drivers ? Right ?

Caledon Ken said:

Could you check you MB model in your specs. I found something similar, M4A87TD-EVO

Did you check Asus versus MS drivers install?

When I did the MB swap I ran the windows update and it installed MS chipset drivers. When I ran into sleep problems I loaded chipset drivers from the AMD site as they have specific for Win 10. The ASUS site only has drivers for Win 8 and 8.1. Probably the same but never tried them.

OK, I have no yellow exclamation marks in device manager but it can`t hurt to try and update everything again. I will do it and report back.