MSI B450 Pro-M2 Power On after Power Fail

stevencoomber

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Hello.
I recently purchased an MSI Pro B450-M2 Max paired up with an AMD Ryzen 3200G APU.  Everything is working except fine for one thing.  I want to PC to boot up after power fail but even with this setting in the BIOS set to Power ON, when power is applied, the PC still requires you to push the power button to boot.  I have installed the latest BIOS and the issue remains.  As the PC is going inside an arcade cab, I need the PC to boot from the power switch.  Does anyone have any ideas?
Thanks in advance.
Steve
 

stevencoomber

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It looks like it does work.  The power to PC needs to be powered off for 30 seconds or so then it will automatically boot once power is re-established.  I have no idea why you have to leave power disconnected for this length of time as a power interrupt may only be very brief so I am not sure if the motherboard is behaving correctly.  Regards.  Steve
 

stevencoomber

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Yes I have latest installed as per my earlier message. Note that it has taken me a while to respond to your question as it doesn't seem to be possible to add messages to forum from Chrome or Edge. I had to install the MSI app onto my phone
 

stevencoomber

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Yes I have latest installed as per my earlier message. Note that it has taken me a while to respond to your question as it doesn't seem to be possible to add messages to forum from Chrome or Edge. I had to install the MSI app onto my phone
 

stevencoomber

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I don't unfortunately.
I have been having another issue. If I set up a fan curve for CPU fan it saves it to BIOS but when I go back into BIOS, it goes back to the default. The default settings the CPU fan is very noisy even when PC is idle. Is this a known issue?
 

zerijelly

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Is the CPU fan's specification is PWM fan(4 pin)?
Could you identify whether the BIOS time is correct after powering off the system for a period of time then powering up the system?
 

stevencoomber

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I've had to put CPU fan into DC mode to quieten it down. You can adjust smart fan settings in BIOS but as soon as you load windows 10, smart settings are overwritten with high speed fan settings even when cpu is in idle
 

zerijelly

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I've had to put CPU fan into DC mode to quieten it down. You can adjust smart fan settings in BIOS but as soon as you load windows 10, smart settings are overwritten with high speed fan settings even when cpu is in idle
Have you installed utility like Dragon Center?
 

stevencoomber

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Have you installed utility like Dragon Center?
Yes I have but I cannot use it as the PC is not connected to the Internet (Dragon Center refuses to run when PC is not connected to the Internet). It's in an arcade cabinet with the intent of isolating it from the internet. Thanks. Steve
 

stevencoomber

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Uninstalled Dragon Center with tool and it made no difference. It seems the BIOS is ignoring any changes I make to the fan curve. The only overclock setting is to increase the memory clock to 3200Mhz (I have ADATA DDR4 3200Mhz memory installed). There are no other overclock settings enabled (AMD Ryzen 3 3200G APU is stock clock settings). This seems to be a BIOS bug. Regards. Steve
 
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