New AM5 BIOS updates now available

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   Given that you are able to make the system POST at all with the subtimings set as
they are in the JDEC I would guess that they are not too far off the mark, enough
to be a problem though. 

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Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 36683	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 26 Mar 2026 at 8:24am
	Given that you are able to make the system POST at all with the subtimings set as they are in the JDEC I would guess that they are not too far off the mark, enough to be a problem though.


Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 36683	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 01 Apr 2026 at 3:48pm
	Hi m13ritmo, I made a thread for your issue as it doesn't really fit this thread.


NDRE28 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 08 Sep 2024 Location: Romania Status: Offline Points: 2445	Post Options Post Reply Quote NDRE28 Report Post Thanks(0) Quote Reply Posted: 05 Apr 2026 at 8:38pm
	Hi! Another consequence of updating the BIOS of the X670E Taichi to version 4.10 (AGESA 1.3.0.0a), was the fact that the default JEDEC profile of my Kingston Fury Beast KF564C32BBEK2-64 (2x32GB DDR5) RAM kit changed. Previous JEDEC profile: DDR5-4800 CL38-38-38-77 @1.1V New JEDEC profile: DDR5-4800 CL40-39-39-77 @1.1V (As on the official Kingston specs sheet). The EXPO & XMP profiles remained unchanged.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 36683	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 05 Apr 2026 at 10:52pm
	Thanks for the info NDRE28. Another bit of evidence leading me to believe that the issue being addressed is IMC related.


Techguy32 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Mar 2026 Location: USA Status: Offline Points: 135	Post Options Post Reply Quote Techguy32 Report Post Thanks(0) Quote Reply Posted: 22 hours 45 minutes ago at 8:34pm
	Re: BIOS V4.20 for the Steel Legend X870 Wi-Fi This BIOS was just released with almost zero info. other than an indicated AGESA update to ComboAM5 PI 1.3.0.1. The file size however has grown significantly from the previous ~17 MB to 18.76 MB. Is there any info. available from Asrock as to what exactly has changed in BIOS V4.20? The cryptic BIOS update info. is almost meaningless for Asrock customers.
	X870 Steel Legend WiFi

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 36683	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 19 hours 31 minutes ago at 11:48pm
	As far as I am aware AGESA 1.3.0.1 adds optimizations for the new Ryzen 9 9950X3D2 Dual Edition processors. There may be other tweaks and improvements added by manufacturers alongside the updated AGESA but I don't have any info as to what those may be. This is pretty standard in the industry though. I am just a moderator here so I don't have access to a full breakdown of changes. The info above came from some digging into what AGESA 1.3.0.1 is meant for. Hope this helps. Edited by Xaltar - 19 hours 29 minutes ago at 11:50pm


Techguy32 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Mar 2026 Location: USA Status: Offline Points: 135	Post Options Post Reply Quote Techguy32 Report Post Thanks(0) Quote Reply Posted: 19 hours 3 minutes ago at 12:16am
	Thanks Xaltar, I was hoping Asrock listed a "change log" or similar so user's had some exact understanding of the BIOS changes.
	X870 Steel Legend WiFi

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 36683	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 17 hours 30 minutes ago at 1:49am
	Yeah, I hear you. I wish we could get those too but most manufacturers don't do that anymore. These days we are lucky if we get "adds support for new CPUs". I suspect it's got something to do with the vendors (AMD/Intel). Listing changes could potentially point to bug fixes and such that they don't want attention drawn to.