Official status of Zen+ BIOS on B450M Steel

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   I think we could benefit from some official clarification on the BIOS releases for the B450M Steel Legend motherboard. According to the release 'notes' (if you want to call them that), v2.50 should be fine for Ryzen Zen+. However there is conflicting information in the forum here that nothing beyond 2.13 should be used.

Can we get the official changelogs for each release? There are more changes than simply those in the notes. At some point there were additional therm/temp options added (hysteresis, namely) in the advanced CPU options. This is listed nowhere in the notes.

If nothing else, what is the latest stable for 2700X + B450M Steel Legend?

Will bug fixes released in the Zen2 versions continue to be trickled down to the Zen+ versions of BIOS?

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8bitbanger Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 Nov 2019 Status: Offline Points: 8	Post Options Post Reply Quote 8bitbanger Report Post Thanks(0) Quote Reply Topic: Official status of Zen+ BIOS on B450M Steel Posted: 16 Nov 2019 at 3:46am
	I think we could benefit from some official clarification on the BIOS releases for the B450M Steel Legend motherboard. According to the release 'notes' (if you want to call them that), v2.50 should be fine for Ryzen Zen+. However there is conflicting information in the forum here that nothing beyond 2.13 should be used. Can we get the official changelogs for each release? There are more changes than simply those in the notes. At some point there were additional therm/temp options added (hysteresis, namely) in the advanced CPU options. This is listed nowhere in the notes. If nothing else, what is the latest stable for 2700X + B450M Steel Legend? Will bug fixes released in the Zen2 versions continue to be trickled down to the Zen+ versions of BIOS?

Ray62 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 01 Jul 2018 Location: Germany, Berlin Status: Offline Points: 706	Post Options Post Reply Quote Ray62 Report Post Thanks(0) Quote Reply Posted: 16 Nov 2019 at 5:39am
	All the bios versions containing AGESA Combo-AM4 1.0.0.1 up to Combo-AM4 1.0.0.3(ab/b/a) are focused on the Gen3/Matisse CPUs. According to the latest infos from AMD, AGESA Combo-AM4 1.0.0.4b is supporting all Ryzen generations: https://www.reddit.com/r/Amd/comments/dtgutp/an_update_on_the_am4_platform_agesa_1004/ AGESA Combo-AM4 0.0.7.2: Support new Athlon 2xxGE series APU. Don't know, if Gen1 and Gen2 CPUs are fully supported. AMD AGESA 1.0.0.6: Final PinnaclePI-AM4 and SummitPI version. So currently a bios version with this AGESA should be the best for a 2700X until a bios with AGESA Combo-AM4 1.0.0.4b or higher will be available. That should be the case soon. Official changelogs? I wish to see those changelogs too, a) From AMD for the AGESA part b) From the vendor for the mainboard specific part
	Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE \| AMD Ryzen 9 3900X \| Scythe Mugen5 \| 2x16GB F4-3200C14D-32GTZ@3466 \| ASUS GeForce GTX 1080 Ti FE

8bitbanger Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 Nov 2019 Status: Offline Points: 8	Post Options Post Reply Quote 8bitbanger Report Post Thanks(0) Quote Reply Posted: 16 Nov 2019 at 9:12am
	Thanks for the verbose response. I believe it highlights some perhaps misunderstanding I had of the relationship/reliance between motherboard manufactures and AMD. So if I understand correctly AGESA development was forked by AMD in order to develop Ryzen 3xxx processor support. 1.0.0.4b is the unified release, bringing back together 2xxx and 3xxx support. While this has been released from AMD, ASRock is still working to implement this AGESA into their BIOS. For Gen2 specifically however, 1.0.0.6 would be ideal. However ASRock has not released a bios with this AGESA, presumably to focus efforts toward 1.0.0.4b (which would include 1.0.0.6 Gen2 final support)? Am I understanding this all correctly? If so then I'll stay on the lookout for the final! In the meantime this still leaves the question: which the highest bug free BIOS version for 2xxx, currently? Did 2.30 introduce any fixes from 2.13A? Thanks again!

Ray62 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 01 Jul 2018 Location: Germany, Berlin Status: Offline Points: 706	Post Options Post Reply Quote Ray62 Report Post Thanks(0) Quote Reply Posted: 16 Nov 2019 at 9:45am
	Your board is newer than the release of AGESA 1.0.0.6 So the first bios version already is based on that, i guess. 2.13A is the newest for 2xxx, yes. I would not use 2.3, the begin of Matisse support. I cannot say anything related to bugs or fixes.
	Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE \| AMD Ryzen 9 3900X \| Scythe Mugen5 \| 2x16GB F4-3200C14D-32GTZ@3466 \| ASUS GeForce GTX 1080 Ti FE

8bitbanger Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 Nov 2019 Status: Offline Points: 8	Post Options Post Reply Quote 8bitbanger Report Post Thanks(0) Quote Reply Posted: 16 Nov 2019 at 11:48am
	According to BIOS, on 2.13A, AGES is 1.0.0.1 :( Really what I'm after is finding a good balance between stock settings/capabilities (Core Boost) without the extreme temp and fan cycling. This likely warrants a separate thread. Thanks again.

Ray62 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 01 Jul 2018 Location: Germany, Berlin Status: Offline Points: 706	Post Options Post Reply Quote Ray62 Report Post Thanks(0) Quote Reply Posted: 16 Nov 2019 at 7:09pm
	Yes, i see, but 2.13A also added: 1. Enhance AMD XFR 2.0 function; change AMD PBO rule with Pinnacle CPU. The newer Combo-AM4 versions below 1.0.0.4b do not disable Zen+ CPUs support, but it could be that some functions are not working properly and/or these versions had only been validated with Gen3 CPUs.
	Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE \| AMD Ryzen 9 3900X \| Scythe Mugen5 \| 2x16GB F4-3200C14D-32GTZ@3466 \| ASUS GeForce GTX 1080 Ti FE

8bitbanger Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 Nov 2019 Status: Offline Points: 8	Post Options Post Reply Quote 8bitbanger Report Post Thanks(0) Quote Reply Posted: 17 Nov 2019 at 12:54am
	Yep 2.13A is what I'm running now. Temps are as shown below with Core Boost enabled. Clear correlation between Core Boost being enabled (to get to 4.3) and those temp oscillations. When disabled, temps are rock solid steady. I see this as AGESA bug. http://imgur.com/a/HpefEIe There is rumor of 2.85 beta release for B540M steel legend but unclear if it's intended to fully support Pinnicle