B550 Phantom Gaming 4 - won't shut down£

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   Brand-new build - all new parts.  

B550 Phantom Gaming 4
Ryzen 5 5500GT
16Gb RAM
2 1Tb M.2 SSDs in RAID 1

Everything went together fine...Win11 installed fine.  Installed latest AMD drivers, all devices recognized, Windows updates came down...all fine.

But - when I shut the machine down, it will go through the motions and turn off the video - but the fans keep spinning and it never actually shuts off.  Repeated many times.  Only way to actually shut it off is to hold the power button down.

Anyone have any thoughts on this?

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Motoman Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 Nov 2024 Status: Offline Points: 50	Post Options Post Reply Quote Motoman Report Post Thanks(0) Quote Reply Topic: B550 Phantom Gaming 4 - won't shut down£ Posted: 16 Nov 2024 at 12:45pm
	Brand-new build - all new parts. B550 Phantom Gaming 4 Ryzen 5 5500GT 16Gb RAM 2 1Tb M.2 SSDs in RAID 1 Everything went together fine...Win11 installed fine. Installed latest AMD drivers, all devices recognized, Windows updates came down...all fine. But - when I shut the machine down, it will go through the motions and turn off the video - but the fans keep spinning and it never actually shuts off. Repeated many times. Only way to actually shut it off is to hold the power button down. Anyone have any thoughts on this?

Motoman Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 Nov 2024 Status: Offline Points: 50	Post Options Post Reply Quote Motoman Report Post Thanks(0) Quote Reply Posted: 17 Nov 2024 at 1:30am
	I have verified that this only happens when using an M.2 RAID array (as boot/only volume). Which in this case completely defeats the purpose of the machine.

Motoman Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 Nov 2024 Status: Offline Points: 50	Post Options Post Reply Quote Motoman Report Post Thanks(0) Quote Reply Posted: 17 Nov 2024 at 2:20am
	Well after going through literally everything I can think of, and find any reference to on the interweb, I'm just going to return this mobo and try something else. No point in fighting with it.

einarsen Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 08 Dec 2024 Location: Toronto, ON Status: Offline Points: 80	Post Options Post Reply Quote einarsen Report Post Thanks(0) Quote Reply Posted: 08 Dec 2024 at 1:32pm
	I'm having a similar problem with a X670E Pro RS with a 9800X3D. Since I'm using that chip I had to flash the BIOS so I know that's new. When I shut down the CPU fan goes to 100% and the GPU also keeps spinning its fans at what I think is 100% ... certainly higher than normal. PSU with fan shutoff stays off (does come on briefly on boot). Did we get anywhere with support on this? Any ideas? I would rather not have to disassemble my 9800X3D test bench if I don't have to.
	Typical Nerd