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Help with disabling SMT |
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ZIZOX 
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Joined: 06 Jun 2019 Status: Offline Points: 5 |
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 Topic: Help with disabling SMTPosted: 06 Jun 2019 at 3:42am |
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Hello forum users))
I encountered the following problem: I can not disable SMT on the Asrock x470 Gaming K4 motherboard. I select smt-disable But after saving the settings and rebooting into windows it continues to work I have flashed the latest BIOS for my motherboard 3.31 but this did not help ( PS.Please forgive my bad english PPS.CPU is R7 2700 |
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xhue
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Joined: 17 Aug 2018 Status: Offline Points: 634 |
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Posted: 06 Jun 2019 at 3:46am |
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OK, I honestly don't know how to achieve this with your board, but let me ask you - why you want that in first place?
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ZIZOX
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Posted: 06 Jun 2019 at 3:50am |
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Well, I would like my motherboard to fully function and not partially.
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xhue
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Posted: 06 Jun 2019 at 4:00am |
In order to do that you need to ENABLE SMT, not disable it. |
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ZIZOX
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Posted: 06 Jun 2019 at 4:14am |
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One question, do you understand what smt is? And that the functionality of a normal MB allows you to disable it? It doesn?™t matter why it?™s not important, but what?™s important is that I cannot use the functionality provided by the motherboard.
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xhue
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Posted: 06 Jun 2019 at 4:32am |
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Yes, believe I've glimpsed the ways and doings of SMT, that much I can guarantee you.
As for why you can't disable it on your mobo, I have no idea. You could also raise a ticket with ASRock's support crew. On rare occasions they can be helpful too. |
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Ray62
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Posted: 06 Jun 2019 at 6:14am |
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And after changing SMT to disabled, saving settings, restart and going to the bios again (without starting an OS) it is still enabled?
If yes, this is a bios issue and a ticket for ASRock's support crew. |
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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 |
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Ray62
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Posted: 06 Jun 2019 at 6:27am |
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Hmm, you should do one test:
The following procedure is known for switching SMT on for some mainboards. Maybe it helps here for switching off too: Go to the bios, disable SMT, save it and make a power cycle (switch power supply completely off, unplug, wait a minute, plug, switch it on and start the machine again into bios. If it is still enabled, it is a real issue. |
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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 |
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Ray62
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Posted: 06 Jun 2019 at 3:56pm |
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There is another aspect for Ryzen CPUs: Suspend to RAM does only work, if SMT is enabled. So if Suspend to RAM is enabled, SMT maybe cannot be disabled due to this dependency (in this bios).
Meaning: Check that Suspend to RAM is also disabled when disabling SMT. |
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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 |
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0C_Monk3y
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Posted: 15 Dec 2019 at 11:54am |
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Confirmed broken on latest BIOS, Asrock needs to get basic features working. Severely limits overclocking on sub-zero temps... Its a useful feature, that's why its in there in the first place, please fix.
This is not an issue on older BIOS, but I'm fairly certain we can't roll back to prior agessa updates. Asrock disabled an important functionality advertised with the board, I'd suggest fixing it (or hand out refunds so we can go with other brands that work). X370 Fatal1ty. |
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"If its not icing over, then you're not overclocking!"
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ZIZOX wrote: