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AMD addresses fTPM issue in Windows 11 and 10

AMD addresses fTPM issue in Windows 11 and 10

from Norman Wittkopf
Ryzen CPUs can cause performance issues on motherboards with firmware Trusted Platform Module (fTPM) enabled, which AMD now wants to address.

After the release of Windows 11 at the end of last year, there were now more and more Cache problem solved of Ryzen CPUs are also reporting brief system hangs, which can also occur on Windows 10 and apparently in connection with AMD’s Firmware Trusted Platform Module (fTPM) stand. This must be within the limits the TPM 2.0 requirement it actually guarantees more security, but it also harbors performance issues due to misconduct in the present case that has now been confirmed by AMD.

The fTPM replaces the physical Trusted Platform Module with a key embedded in the processor, but like AMD in confirmed in a support post The whole thing didn’t work out as expected. The root cause of the issue is that certain Ryzen system configurations may intermittently perform fTPM-related extended memory transactions in the SPI flash memory (SPIROM) on the motherboard, which may cause temporary pauses in interactivity or responsiveness. from the system until the transaction is complete. I call.

The issue, which AMD is working on with board partners, will be addressed with upcoming BIOS updates based on AMD Generic Encapsulated Software Architecture (AGESA) Version 1207 or newer, but shouldn’t be ready until May this year. . Until then, AMD recommends using an external TPM (dTPM – Device Trusted Platform Module), which is also indicated in the support entry. is described, although this costs as a separate hardware purchase. Otherwise, those affected would just have to disable fTPM in the BIOS, which helps against stuttering, but also makes the system more insecure.

Source: via