B850 Pro A Unstable Post Issues

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   Hi Cameron.

I'm since about 3 weeks been experiencing the same issue as described by others (owned this system since january).

It is in fact not hanging at the memory training, as it goes past the blinking DRAM light, but gets stuck once it's at the green BOOT status light.

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JustRick Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 11 Oct 2025 Location: Netherlands Status: Offline Points: 30	Post Options Post Reply Quote JustRick Report Post Thanks(0) Quote Reply Posted: 11 Oct 2025 at 3:58am
	Hi Cameron. I'm since about 3 weeks been experiencing the same issue as described by others (owned this system since january). It is in fact not hanging at the memory training, as it goes past the blinking DRAM light, but gets stuck once it's at the green BOOT status light.

JustRick Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 11 Oct 2025 Location: Netherlands Status: Offline Points: 30	Post Options Post Reply Quote JustRick Report Post Thanks(0) Quote Reply Posted: 12 Oct 2025 at 5:42pm
	Hi all! I found the culprit for me! I made a post about it on Reddit for those interested. For me it was a bug where values of Competitive/Aggressive DRAM Profiles weren't properly reverted when switching back to AMD AGESA Default profile: https://www.reddit.com/r/ASRock/comments/1o47ent/fix_for_asrock_stuck_green_boot_light_issue_after/

CantDoScheisse Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 6 hours 36 minutes ago Location: Norway Status: Offline Points: 15	Post Options Post Reply Quote CantDoScheisse Report Post Thanks(0) Quote Reply Posted: 6 hours 28 minutes ago at 5:29am
	i bought the B850 PRO RS and 9900x combo the 04.29.25 and had no issues, until recently, followed steps from this forum, and reddit, other forums. Red & Orange light not budging at all. The motherboard killed the cpu. Luckily i had a pal with the same chipset AM5, Msi Edge ITX and my cpu gave the same error, cleared cmos, let it run for 30min+. put his 9800x3d back and no issues. In summary. RMA everything and get something else rather than Asrock for now.
	Lers