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Author Topic: Bristol Ridge APU overclocking support on MSI B350/X370 motherboards  (Read 2431 times)

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FlakyTopic starter

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Hello everyone,

Is overclocking of those APUs even supported on MSI motherboards? I have B350M Mortar Arctic (with latest bios), A8-9600, and nothing actually works.
There are only two options in bios - ratio and "core performance boost".
No matter what I set, any load causes frequency drop to 3.1GHz or 3.4GHz.

Did anyone got it working?

By the way - I tried to create a support ticket, but keep getting error 500.
Where do I even report such thing?
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Svet

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Have a try this new BIOS, which should helps with this issue.
https://www.dropbox.com/s/bsbh5m4rw0n2cq7/E7A37AMSA81.rar?dl=0
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FlakyTopic starter

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Thanks for the response Svet.

Unfortunately I returned that motherboard one day before your answer.

Is there any chance that BR OC will get fixed, and be a part of major bios releases for all MSI motherboards?
I don't know exactly what motherboard will be next, and I don't want to bother you with every possible model I might get :)
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Svet

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yes, msi are doing this one by one,
it need a time, 1st beta and later with official versions
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FlakyTopic starter

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Thanks! Great to hear that.

Any ETA on those?

Are upcoming AM4 motherboards using 400 series chipsets going to support Bristol Ridge CPUs?
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Svet

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No ETA, but they are doing this as soon as possible
for most of them they are already betas to allow OCing for those CPUs


Quote
Are upcoming AM4 motherboards using 400 series chipsets going to support Bristol Ridge CPUs?

not sure, you can open a ticked here to have a ask:
>>How to contact MSI.<<
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FlakyTopic starter

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Did try.
Unfortunately overdrive does not detect anything newer than kaveri & godavari APUs.
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FlakyTopic starter

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Hello @Svet

Is there already a beta bios with Bristol Ridge overclocking support for MSI B350M GAMING PRO?
If not, could you please provide one?

Thanks in advance.
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Svet

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Will check and reply you back later.
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Svet

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FlakyTopic starter

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Thank you Svet! It seems to work!
I haven't yet done extended stability tests, but the frequency does not change now, and working higher clocks can be confirmed in, for example, cinebench.

Is there any hope to see other oc/tweaking options? like:
1) cTDP
2) NB multiplier
3) Core count limiting (both one-per-module and one-module-disabled variants)

Also - is 1.4V for vcore a hard limit? Afaik top-of-the-line A12 APU turbo pstates exceed that voltage.
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FlakyTopic starter

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Hello!

I tried the newest beta bios for this motherboard, as mentioned in this thread.
BR OC still works here, but I have a problem with iGPU.
When there is an AMD dGPU present (r7 240), the iGPU fails to work - code 43.
When i remove dGPU, the integrated graphics works fine. Tested on newest, and some older drivers with same result.

I want to see if it is anyhow related to BIOS, and try previous version. The problem is - M-FLASH forbids flashing to older version.
How can I workaround over this limitation, and just get older version flashed onto the motherboard?
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Svet

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to which version you wish to flash back?
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FlakyTopic starter

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Preferably... any? ;)
I see no real reason to block downgrade as long as target bios supports currently running CPU.
There should be "I know what I'm doing - let me shoot myself in the foot" kind of checkbox. 

At least going back to stable v29 would be nice.

I found something more about the iGPU issue:
dGPU vendor makes no difference.
iGPU fails to work (code 43) if dGPU is set as primary video adapter.
If iGPU is set as primary, it works.
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Svet

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i think its limitation, not restriction.

you can try flash back to this way:
https://www.dropbox.com/s/1eoi6ggy89icdra/proceed_290.rar?dl=0

* Close any Windows app. that can be closed, especially Antivirus or any other resident scanners.
* Extract all files from proceed_290.rar to some folder
* Run proceed.exe, and confirm with "Y" when asked to update the BIOS
* Reboot computer when its done
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FlakyTopic starter

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Hello again!

The BR overclocking worked fine for a long time, but recently I decided to update the bios.
Unfortunately the 2K and 2L versions (which introduce offset voltage) have broken Bristol Ridge overclocking - effect is the same as in first post of this thread.
The last version that got this right is 2J.
This is confusing, since those versions supposedly "Improve compatibility with Bristol CPU" :undecided:

Having working bristol OC with the offset voltage would be nice.
Any chance for beta bios, or having it fixed in next stable version?
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Svet

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there is no newer versions
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FlakyTopic starter

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Thanks for the response Svet.

You mean beta bioses, right?
MSI published list of future bioses with new am4 cpus support here.

The upcoming bios version to be released is 2N. Is there any chance that it will have bristol OC fixed?
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Svet

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Quote
You mean beta bioses, right?

any new beta/non beta


Quote
MSI published list of future bioses with new am4 cpus support here.

The upcoming bios version to be released is 2N. Is there any chance that it will have bristol OC fixed?

don't know, you can ask them here:
>>How to contact MSI.<<
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