The  http://www.asrock.com/mb/AMD/Fatal1ty%20990FX%20Killer3.1/" rel="nofollow - Fatal1ty 990FX Killer/3.1 is my first ASRock motherboard and I have so far been very happy with all aspects of it.  However, the motherboard, even with the latest BIOS, appears to have a compatibility problem with the TPM2-S TPM 2.0 module.

http://www.asrock.com/mb/spec/card.asp?Model=TPM%20Module

Even with both BIOS options for TPM set to enabled, the message "Support Turned Off" is displayed. Having researched this issue, it appears that many ASRock motherboards do not support TPM 2.0 without a BIOS update, which ASRock_TSD has so generously provided to at least two people inquiring via these forums.

http://forum.asrock.com/forum_posts.asp?TID=5746#34288

http://forum.asrock.com/forum_posts.asp?TID=6627#39603

I contacted ASRock support Sunday, December 3rd, 2017 and have yet to receive a response, which is entirely understandable due to the recent barrage of holiday sales, which in turn surely increased their number of inquiries.

Thank you so much for your support, ASRock. I look forward to being a customer of yours for years to come. 

Dear HunterSnake,

Greetings, this is ASRock TSD.

Regarding your case, please download the BIOS P1.30A from below link to support TPM2.0 module.

And update BIOS by instant flash method.

http://mega.nz/#!0agC1S6a!aWzRpX-v45bWUX_T9feSvwU_sNQgY3YOXjAHXvWFBc8" rel="nofollow - https://mega.nz/#!0agC1S6a!aWzRpX-v45bWUX_T9feSvwU_sNQgY3YOXjAHXvWFBc8

Thanks!

All the best,

ASRock TSD

Thank you very much for your quick response! 

The latest BIOS for the Fatal1ty 990FX Killer/3.1 which you provided does appear to have corrected the TPM dysfunction.  Windows now recognizes the device as "Trusted Platform Module 2.0" under "Security Devices." TPM.MSC (run as administrator) displays that "the TPM is ready for use."

Thank you again for supporting your devices!