Try setting in UEFI Setting:
Power supply idle control is a motherboard setting for older (or cheaper) power supplies. ... So Idle control is used
when your computer actually powers off instead of going to sleep on idle - it sets the threshold of low power draw at idle to like 7.5w so it won't trigger the PSU to turn off.
change a configuration that should be in [Advanced CPU Settings] called [Power Supply Idle Control] and change the value to [Typical Current Idle]?
This is a new UEFI Setting that prevents Ryzen processors from crashing while in the idle state.
If the above UEFI Setting doesn't fix your crashes you might consider opening a AMD Warranty Request and see what they suggest from here: https://www.amd.com/en/support/kb/warranty-information/rma-form
Hi, I 've just build my pc and have exactly the same problem! can play games for an hour and then restart same as if trigger the power button and have the vga led stay on during the restart. I've find the solution above and set it in my bios , hope it 'll solve the issue. Please let me know if it fix yours
In my B450 Tomahawk Max BIOS, I don't seem to have that setting.
Under overclocking > Advanced CPU configuration, my options are:
Precision boost overdrive [Auto]
LN2 Mode 1 [Auto]
LN2 Mode 2 [Auto]
CPU VDD_SoC Current optimisation [Auto]
Core Performance Boost [Auto]
CPU CCD Control [Auto]
CPU Core Control [Auto]
SMT Control [Auto]
cTDP limit control [Auto]
Package Power Limit [Auto]
Are any of these the settings I need to change?
I have been getting this issue for about a month
I have a MSI MB with a Ryzen 3600 and 16GB memory
I have now got a stable system by using the MSI Dragon software and setting to extreme performance
this also sets windows power plan to Ultimate performance
this has stopped my PC from crashing every 10/20 mins when idle
The other way I stopped my PC from crashing was to use CPUID CPU-Z and run the CPU stress on 2 cores
while this run the system did not crash
I think this is a compatibility issue between windows and AMD in the power plan
Seems like not all Ryzen Motherboards that uses 3rd Generation AMD processors has that option or setting in UEFI/BIOS.
Many times MSI has BETA UEFI/BIOS versions that they may recommend in certain situations.
I see MSI does have a BETA BIOS to update from just two days ago: Support For B450 TOMAHAWK MAX | Motherboard - The world leader in motherboard design | MSI Global :
(Check to see if that BIOS settings is included in this new UEFI/BIOS version):
Also update your MSI AMD CHIPSET first before updating to the latest MSI UEFI/BIOS verison:
For now just leave those UEFI Settings that you posted in "Auto" unless another User with a similar Motheroboard suggests how to configure those settings for a more stable Ryzen.
I suggest that you open a MSI Support ticket and AMD Service Request (Official AMD SUPPORT) and see what they recommend: https://www.amd.com/en/support/kb/warranty-information/rma-form if after updating your UEFI and CHIPSET doesn't resolve your problem.
I've tried this but it seems to skyrocket my CPU fans to a consistent 100%. I'm using cool master 212 black edition with freshly applied thermal paste. Is this sustainable? To be running at this level at ALL times?
I tried speaking to AMD support and they told me it sounded like a faulty CPU and to RMA it. I RMA'd it and the problem persists.
I'm worried about doing a BIOS update incase the crash happens when updating and completely destroys the board by crashing mid update!
I don't blame you about your concern about updating the BIOS on the Motherboard if you believe it might lose power during the process.
Has the computer ever crashed while you were in UEFI/BIOS?
According to your manual you can update the BIOS using a USB Flash drive while in BIOS:
I have attached your Motherboard's Manual in case you are interested in looking at it.