AMD Stutter Experienced with fTPM Enabled on Windows 10 and 11


  • Staff
Article Number: PA-410
This documentation provides information on improving intermittent performance stutter(s) on select PCs running Windows® 10 and 11 with Firmware Trusted Platform Module (“fTPM”) enabled.

Issue Description
AMD has determined that select AMD Ryzen™ system configurations may intermittently perform extended fTPM-related memory transactions in SPI flash memory (“SPIROM”) located on the motherboard, which can lead to temporary pauses in system interactivity or responsiveness until the transaction is concluded.

Update and Workaround
  • Update: Affected PCs will require a motherboard system BIOS (sBIOS) update containing enhanced modules for fTPM interaction with SPIROM. AMD expects that flashable customer sBIOS files to be available starting in early May, 2022. Exact BIOS availability timing for a specific motherboard depends on the testing and integration schedule of your manufacturer. Flashable updates for motherboards will be based on AMD AGESA 1207 (or newer).
  • Workaround: As an immediate solution, affected customers dependent on fTPM functionality for Trusted Platform Module support may instead use a hardware TPM (“dTPM”) device for trusted computing. Platform dTPM modules utilize onboard non-volatile memory (NVRAM) that supersedes the TPM/SPIROM interaction described in this article.
    1. COMPATIBILITY: Please check with your system or motherboard manufacturer to ensure that your platform supports add-in dTPM modules before attempting or implementing this workaround.
    2. WARNING: If switching an active system from fTPM to dTPM, it is critical that you disable TPM-backed encryption systems (e.g. BitLocker Drive Encryption) and/or back up vital system data prior to switching TPM devices. You must have full administrative access to the system, or explicit support from your IT administrator if the system is managed. For more information on transferring ownership to a new TPM device, please visit this Microsoft webpage.


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kellymac35

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TairikuOkami

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So I have got TPM module from China for $10, that should solve the never-ending problems with fTPM. The only downsize it that this Infineon TPM module is not actually secure, made in 2013, vulnerable to bug from 2017. No firmware available. Whatever, as long as Windows does not report it as a problem and it accepts it. :smirk:
 

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BrianInEngland

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So I have got TPM module from China for $10, that should solve the never-ending problems with fTPM. The only downsize it that this Infineon TPM module is not actually secure, made in 2013, vulnerable to bug from 2017. No firmware available. Whatever, as long as Windows does not report it as a problem and it accepts it. :smirk:
$10 TPM module from China is not secure, who knew 🤔 Your machine is probably more secure without this!
 

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johnlgalt

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So I have got TPM module from China for $10, that should solve the never-ending problems with fTPM. The only downsize it that this Infineon TPM module is not actually secure, made in 2013, vulnerable to bug from 2017. No firmware available. Whatever, as long as Windows does not report it as a problem and it accepts it. :smirk:

I bought mine directly from MSI. Mine is running fw 5.63, which is dated 2016, but Windows Update hasn't thrown up any message regarding the need for it to be updated.

But, just for S&G I sent a message to MSI via the contact form linking to the Microsoft article and the Infineon web page where the firmware links are for the vendor specific items.

Who knows, maybe they respond?
 

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