Motherboard [27/10/2024]ASRock DeskMini A/X300 BIOS /"P1.90.SL01"(S3 support) & "P1.91"(Curve Optimizer) for X300 /"P3.70E" for A300 - AGESA ComboV2 PI "1.2.0.Cc"

Dr. Nick

Caliper Novice
Sep 2, 2024
21
19
Hi, can someone clarify if there is some way to undervolt a CPU? Thinking to buy X300 so not familiar with it, I do know there is a way to change a voltage for RAM but how about CPU?
You can use Curve Optimizer for undervolting on the X300 if you press CTRL + Q in BIOS -> Advanced menu.
 
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HydrAxx747

Cable-Tie Ninja
Original poster
Feb 23, 2021
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New Beta BIOS 1.91 now officially adds Curve Optimizer:

ASRock > DeskMini X300 Series
Thank you very much for the info, I will add it, strange all the same I have the impression that the BIOS department of ASRock has decided to resume the development of BIOS for DeskMini X300 (knowing that I received an email from them telling me the opposite), it's not so bad I'm not going to complain but on the other hand it's a bit quiet on the BIOS side for DeskMini X600...😅
 

Dr. Nick

Caliper Novice
Sep 2, 2024
21
19
Does anyone know why 1.90C does not save the BIOS setting SoC/Uncore OC Mode? It's always enabled, locking SoC voltage at 1.15V, and uncore frequency at maximum. I had it disabled once, but that changed framebuffer size to 4 GB, as soon as I set that to a lower value, SoC/Uncore OC Mode was enabled again. I can set the SoC voltage to a lower value manually, but it's still fixed then, and so is uncore frequency at max.
 
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HydrAxx747

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Original poster
Feb 23, 2021
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Is there any way we can get a bios that supports non-APU processors on the [A,X]300? These would be amazing with an X3D chip.
Unless you know someone who knows how to debug UEFI BIOSes in depth (and specifically ASRock's) and also inject CPU microcodes, I would say that this is not within everyone's reach. And furthermore, knowing that the "pure" AM4 CPUs (non-G Ryzen series 1/2/3/5xxx) do not have integrated graphics in their IODs, this would require adapting an external graphics card by connection via one of the M.2 NVMe ports (in PCIe3.0 4x more, so very limited). Honestly, I think this is a voluntary limitation on the part of ASRock because there is no possibility of putting a dedicated graphics card in a "conventional" way.
 

HydrAxx747

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Original poster
Feb 23, 2021
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Does anyone know why 1.90C does not save the BIOS setting SoC/Uncore OC Mode? It's always enabled, locking SoC voltage at 1.15V, and uncore frequency at maximum. I had it disabled once, but that changed framebuffer size to 4 GB, as soon as I set that to a lower value, SoC/Uncore OC Mode was enabled again. I can set the SoC voltage to a lower value manually, but it's still fixed then, and so is uncore frequency at max.
Sorry, I haven't tested it personally, my attention is currently more focused on testing very soon the new Beta BIOS "P1.91" that you informed me of the existence of a few days ago, I'm curious to see if there will be substantial gains on my Ryzen 7 5700G, by the way on this subject: Have you tested this latest Beta BIOS? And if so, do you know if they also gave access to the "Curve Optimizer" setting option dedicated to the "iGPU" part of our APUs?
 

Dr. Nick

Caliper Novice
Sep 2, 2024
21
19
Sorry, I haven't tested it personally, my attention is currently more focused on testing very soon the new Beta BIOS "P1.91" that you informed me of the existence of a few days ago, I'm curious to see if there will be substantial gains on my Ryzen 7 5700G, by the way on this subject: Have you tested this latest Beta BIOS? And if so, do you know if they also gave access to the "Curve Optimizer" setting option dedicated to the "iGPU" part of our APUs?
I haven't tested 1.91 yet. I know that 1.90 gives the Curve Optimizer options for both CPU and iGPU via CTRL + Q Advanced menu, I'm currently on -10 for CPU and -5 for iGPU. 1.91 should probably have both options too.

Ok, just flashed L1.91, it does NOT offer iGPU Curve Optimizer if you use OC Tweaker menu -> Precision Boost Overdrive set to Advanced. There is only CPU Curve Optimizier. While it still has the CTRL + Q Advanced menu with both options for CPU and iGPU Curve Optimizer, it is impossible now not only to disable SoC/Uncore OC Mode, but also to set SoC Voltage manually, thus I'll go back to P1.90.

It's possible to disable SoC/Uncore OC Mode with UMAF. :) Setting is back to enabled after changing BIOS settings though, thus UMAF required again then.
 
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Dr. Nick

Caliper Novice
Sep 2, 2024
21
19
New BIOS P2.00: Same change log as L1.91 Beta.

ASRock > DeskMini X300 Series

OK, I can NOT recommend this BIOS, like L1.91 it seems to update Secure Boot signatures, thus I can't boot UMAF anymore at the moment. But even worse, P2.00 doesn't only fail to save the SoC/Uncore OC Mode setting, it won't save the CPU and iGPU Curve Optimizer settings, and Boost Override settings anymore either. I'm back on P1.90C.
 
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yck3110

Chassis Packer
Jul 16, 2019
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New BIOS P2.00: Same change log as L1.91 Beta.

ASRock > DeskMini X300 Series

OK, I can NOT recommend this BIOS, like L1.91 it seems to update Secure Boot signatures, thus I can't boot UMAF anymore at the moment. But even worse, P2.00 doesn't only fail to save the SoC/Uncore OC Mode setting, it won't save the CPU and iGPU Curve Optimizer settings, and Boost Override settings anymore either. I'm back on P1.90C.
The asrock website only got 1.90 bios and 2.00 at the moment
Is it only recommended to update to 1.90 version , If i wanna to try undervolting my 5600g and deskmini x600 with curve optimizer?
 

yck3110

Chassis Packer
Jul 16, 2019
16
0
The x300 asrock website only got 1.90 bios and 2.00 at the moment

Is it only recommended to update to 1.90 version , If i wanna to try undervolting my 5600g and deskmini x300 with curve optimizer?
 

Dr. Nick

Caliper Novice
Sep 2, 2024
21
19
The x300 asrock website only got 1.90 bios and 2.00 at the moment

Is it only recommended to update to 1.90 version , If i wanna to try undervolting my 5600g and deskmini x300 with curve optimizer?
I'd recommend P1.90 at the moment, because of the issues with P2.00. With P1.90 it's possible to use Curve Optimizer for CPU & iGPU via CTRL + Q Advanced menu, which doesn't work with P2.00 anymore. Didn't try with UMAF, which is possible to boot with Secure Boot disabled in BIOS, problem is, as soon as you change any setting in BIOS then, the SoC/Uncore OC Mode is enabled again. Thus IMO P2.00 is worse than P1.90.