Wake issues on B550-A PRO

karlshea

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Oct 20, 2021
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I have a new build with B550-A PRO, which is replacing an Asus board where all of this just worked, so I'm hoping there's a solution:
I'd like to 1) wake the computer up by hitting a key on the keyboard, 2) wake the computer with a WoL packet, and 3) let Windows wake the computer itself (for backups, using its task scheduler).
It seems like the current BIOS is unable to do this. The two options for "Wake Up Event By" are:

  • "OS": Windows can wake the computer up itself, but keyboard/NIC won't (have to hit the power button).
  • "BIOS": Keyboard/NIC can wake computer, Windows can't.

It doesn't seem right that both can't work at the same time in 2021, especially since an Asus board from 2016 was doing it, but I'm hoping I'm just missing something?
 

hookerja156c02e4

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Oct 7, 2021
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I feel ya! I have the B550 version of this board and wish the BIOS had a "Power On By Mouse/Keyboard" option along with better wake options ...

As it stands, when I go to bed, I lock the PC down and turn off my wireless mouse. Monitor goes blank after 1 minute.

Nothing should wake my system after that, but about an hour later, my monitor will come on for seemingly no reason at all ...
 

Alan J T

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Yep compared to intel systems the AMD wake functions really need a lot of work
 

karlshea

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Is this an AMD issue or an MSI issue? I would not have bought this board if I knew this was a limitation.
 

karlshea

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Hmmm this actually seems to be an issue with my Windows install... I tried a clean Win11 and Windows can wake itself up even if "BIOS" is selected.
 

Alan J T

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Hmmm this actually seems to be an issue with my Windows install... I tried a clean Win11 and Windows can wake itself up even if "BIOS" is selected.
Im guessing you talking about wake from windows sleep or hibernation function and not wake from shut down. And ya windows not like to be swapped from one system to another as different hardware and driver get conflicted. All ways best to do a clean install on a new build.

I don't bother with Sleep as it only take 10 to 15 seconds to boot from a shutdown via windows kind of makes sleep a pointless feature in a lot of cases
 

karlshea

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I was able to fix my original Windows install by toggling hibernation using powercfg and rebooting in between, so now "BIOS" mode is responding to Windows wake timers.

I don't bother with Sleep as it only take 10 to 15 seconds to boot from a shutdown via windows kind of makes sleep a pointless feature in a lot of cases
That's fine if you only want to turn the computer on when you're physically next to the computer. If you want it to wake up by itself in the middle of the night for backups, or want to wake it up remotely using wake-on-lan so you can get a file off of it when you're not there, it's a lot less "pointless".
 

Alan J T

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Is why I use google drive and I do Back ups at 11pm everyday. Intel is a much better system for that kind of thing as wake event can work even when PC is shut down via Windows. I was quite surprised at just how flakey the wake events on AMD desktop pc is as never had the same problems with AMD Laptops or intel Systems, But you can set AMD to wake at a set time and do back up provide you setup the system correctly, but as I am now retired I no longer need to do any of that kind of stuff so have not bothered to find a solution for it as I normal have the PC on from 1pm to 2:30 am daily yep I a nighttime person Daylight and working during the day is for saps Night time is the only way to go
 
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