B650E PG-ITX - Unable to power-off

Hello

My PC refuses to power-off and rather automatically powers back on about ~0.1sec after poweroff.

It's a very weird behavior which is the first time in about 30 years of IT that I experience.

All the hardware is brand new :

-B650E PG-ITX
-Ryzen 7700X
-Asus RX 6700 XT
-2*16GB RAM (Corsair VENGEANCE DDR5)
-Samsung 980 PRO 1 TB
-Corsair SF750 SF power supply


It's a clean Win11 22H2 (22621.1992) installation.
I installed ASRock drivers which I took from the official location here : https://pg.asrock.com/MB/AMD/B650E%20PG-ITX%20WiFi/index.asp#Download

The latest BIOS, 1.28, is flashed as well (had the same problem with 1.24)

At this point, before installating the RX 6700 XT driver (& without connecting the machine to internet, avoiding that Windows update does it for me..), everything works fine, I am able to shutdown normally. I can reproduce this behavior as much as I want (simply uninstall the graphic driver using DDU).

From the moment I install the latest official driver of my RX 6700 XT the problem begins.


Basically the PC is starting its shutdown process. Next, you can see by the SSD heatsink fan that the power is, indeed, cutted for a fraction of a second (something like 0,1 sec) and then immediately comes back (so does the machine boot back in Windows...)

Of course before writing this message I tested everything I could find online like disabling the Wake On Lan (this PCIe option in APCI). I also did reset the CMOS, revert all settings to default, nothing helps. But those are all people complaining that the PC powers-on at some time.. I have a different issue since it happens all time and immediately when the power is cut

From the testing I did, the issue is clearly linked around the GPU driver or anything within the OS that is changed once that driver is installed. We speak about the latest stable/official driver which is 23.7.2.

Does anyone have an idea on what could be the most logical cause of this ? Thanks

Frankly I cannot understand how such a basic feature like sleep mode is something so complicated ?

All those fancy features more or less nobody is ever using but on the other hand simple things do not even work ...

How is such B.S possible ?

Doing nothing special only full default settings on new hardware.. what the ..... seriously.

Even worse, all settings on default, the machine is not even powering off at all.
The fact I am actually able to change the behavior playing in the BIOS settings is the proof the problem somehow comes from the board.


Googling this problem and you only come up with the standard b.s like "are you sure the computer is correctly plugged on the wall"


This is returning to amazon

if you ruled out power switch, psu or any device, LAN than IMO unfortunately that might be a defective motherboard.

I have a problem with sleep mode too - one USB controller (3x USB 2.0 , asrock b650m-hdv/m.2 )not working after waking up from S3, but I still hope this is fault of the certain device or bios version.

alvoryx wrote: What is crazy is that I bought this motherboard especially because the first one (the asus b650e) was producing another weird behavior after about 2 weeks : the wifi adapter (mediatek) was randomly disappearing from device manager after I took the machine out of sleep. yes exactly...after 2 weeks... a ~300??board... like WTF... why ?

IMO this was a problem with removable mediatek card windows drivers. They have a huge problem with drivers, its embarrassing.

I write so, because I have this card RZ616 Wi-Fi 6E MT7922 and in windows the bluetooth keeps getting disabled with a code 43, while in Linux it works absolutely flawless. To make it work in Windows I have to... boot into Linux and back. It seems the drivers have same binary files, but the device works with no problems only in one system.

alvoryx wrote: That's why this message, maybe I am missing something obvious. Or maybe I have another problem with another composant like the power supply ? Today I even tested to roll back to each bios version that was released for that board. I even reinstalled a 1 year old Windows 10 from scratch. All of that leading to the same result. For the sake of the test I will try with another power supply and with 2 other RAM sticks (I don't see how such issue could be linked to CPU ??) and we will see. I have to because, somehow, I cannot believe that I just bought 2 brand new defective motherboards from 2 different brands.

From what you write the problem with b650e pg-itx unfortunately looks hardware with the board itself to me. I'm not a specialist, but IMO the board have a chip responsible for power management, fans, power leds (like KBC in laptops, SIO, idk) and it's not working correctly and RMA is your only option.