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#1 Cannot enable Intel PTT (TPM 2.0) at ASUS motherboard by Gus.Ghanem 26.06.2021 05:13

I have an ASUS Z170-A motherboard with an Intel Core i7-6700K CPU (latest BIOS 3802 and IME firmware); I just can't figure where and how to enable Intel PTT:

Intel(R) Platform Trust Technology - PRESENT/DISABLED

There is no PTT setting anywhere in the BIOS. I never had any use for it, so I never noticed it until it was mentinoned by Windows 11 requirements.

Launch Windows PowerShell as Admin and type: get-tpm

Windows key + R and type: tpm.msc

#2 RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by MeatWar 26.06.2021 05:26

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U dont see it because u dont have any HW module connected to the header (ID 16 on ur manual).

EDIT: This is part of latest bios 3802 version content, the only thing i cannot assure u, is witch of all the options will be available with a connected TPM module.


I see, then i misunderstood ur question about the possible related TPM settings, sorry i wasted ur time, good luck then.

#3 RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by Gus.Ghanem 26.06.2021 05:39

Thank You. I realize I don't have TPM, but I should have PTT for my chipset/cpu; there should be a PTT setting in the BIOS; there isn't (or maybe there was, but disappeared after a bios/ime firmware update).

There's no need for a hardware TPM module for Intel chipsets/cpu's that have built-in PTT, it serves the purpose of TPM 2.0

EDIT: Some info is difficult to find; apparently the Intel Z170 chipset supports PTT, but maybe the unlocked Intel 6700K CPU does not? I'm still unsure about this:
Intel official specs
https://ark.intel.com/content/www/us/en/...o-4-20-ghz.html
https://ark.intel.com/content/www/us/en/...70-chipset.html

Thank You for all replies!

#4 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by maxdarksol 27.06.2021 14:14

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You can try to use AMIBCP to modify the PTT default & optimized settings in the hidden PCH-FW configuaration.
And flash the mod_bios see it is work or not.

#5 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by Sylar76 27.06.2021 15:15

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You have to buy the 14 PIN TPM Module and insert it on its motherboard connector.

#6 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by jmg1138 27.06.2021 16:07

On my newer asus it was under "Advanced\PCH-FW configuration" with a single "TPM Device Selection" option. The correct setting is firmware TPM, the default is "discrete" TPM even if not installed for some reason

#7 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by dreimer 27.06.2021 17:50

I tried enabling PTT HW SUPPORT with AMIBCP. Now I have the menu as mentioned by jmg1138, too. You can select dTPM or PTT. Selecting PTT and saving/resetting causes nothing to show up TPM wise in Windows AND the setting is reset inside UEFI. So... this does not help here. At least that alone does not.

#8 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by Gus.Ghanem 27.06.2021 18:36

Thank you all for the replies... There's no PCH-FW in my BIOS and I'm not familiar with AMIBCP, where can I get a hold of it?

EDIT: I did get a hold of it, but I will not attempt to modify my own BIOS just yet.

#9 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by dartraiden 27.06.2021 19:55

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Did you disable Intel ME with me_cleaner or similar utilities? PTT is built on ME basis, so disabled ME = missing PTT
Look at ME FW Version, if it is 0.0.0.0 => ME is in disabled state.

Zitat
but maybe the unlocked Intel 6700K CPU does not?


PTT is completely chipset feature, unrelated to CPU

#10 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by Gus.Ghanem 27.06.2021 20:20

The only thing I've ever done with my motherboard is update the BIOS (up to 3802 in 2018), then started updating the IME firmware:
My BIOS currently shows "ME Version 11.8.86.3909" there are no zeros anywhere; I have not used any tools other than the IME firmware update tool.

EDIT: Just to be clear, after reading a lot of posts about TPM/PTT, even if Windows 11 RTM will not require it, it would still be nice to have the extra layer of security.

#11 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by dreimer 27.06.2021 21:03

Same here. 100% official BIOS used, enabled PTT HW SUPPORT and nothing keeps active. There even is a line with information now: PTT Capability / State : 0 / 0
So right now... no PTT found by modded BIOS I guess

#12 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by maxdarksol 28.06.2021 11:49

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Adjusting UEFI hidden settings without flash mod_BIOS
1.get your BIOS(Download from the official website of the device or back up your current BIOS with AFUWIN64 )
2.Using AMI setup IFR extractor in UBU to get configuration file offset
3.Find the "setup_extr.txt" of your motherboard from the ubu directory,open it.
4.ctrl+F Search the key words"TPM Device Selection" for Intel motherboard
5.get the VarStoreInfo (VarOffset/VarName) and Option,
such as “One Of: TPM Device Selection, VarStoreInfo (VarOffset/VarName): 0x6A6, VarStore: 0x1, QuestionId: 0x279D, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 5E 10 5F 10 9D 27 01 00 A6 06 14 10 00 01 00}
Default: DefaultId: 0x0, Value (8 bit): 0x0 {5B 06 00 00 00 00}
One Of Option: dTPM, Value (8 bit): 0x0 {09 07 61 10 00 00 00}
One Of Option: PTT, Value (8 bit): 0x1 {09 07 60 10 00 00 01}”
6.Make a support setup_var command grub boot disk.format your Udisk to FAT32,then make dir /efi/boot/bootx64.efi
7.disable secure boot,and boot to the Udisk
8.use the command "setup_var 0x6A6",output the result "0x0",it means dTPM.You can type"setup_var 0x6A6 0x1" to transfer PTT.
9.Shut down your coumuter,boot to windows10, run tpm.msc,Check TPP start or not.
10.go to UEFI enable the secure boot.

#13 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by Gus.Ghanem 28.06.2021 20:10

Thank You again for all your replies...
I am starting to suspect that the unlocked CPU (K) may be preventing the chipset from activating PTT, even though it is supported by the chipset.

#14 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by dartraiden 29.06.2021 01:27

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Maybe it depends on the BIOS version. I have Z170-P with BIOS v.1902 and PTT is present in BIOS options.
Unfortunately I cannot test it on newer BIOSes since my ES processor is not supported by new BIOS.

You can try to rollback to older BIOS via FPT utility (do not use ASUS Flashback or some builtin tool, it cannot properly downgrade 3xxx BIOS to 1xxx/2xxx) from CSME System Tools 11 package.

- extract BIOS from CAPsule via UEFITool
- open extracted file again in UEFITool
- search for GUID 68DB9E58-4B9C-4E60-8DA6-9A714DC3EDD3, find it, remove and save file.
- flash

1
 
FPTW64 -BIOS -F file.rom
 

#15 RE: RE:Cannot enable Intel PTT (TPM 2.0) at ASUS Z170-A by theWillow 29.06.2021 02:48

Thank you so much maxdarksol worked like a charm!!! I set the secure boot option to "Other OS" saved and then selected to boot from the USB. Strangely the first time I did it I was unsuccessful and the BIOS just reverted to the 0x0 setting. But I tried it again and after powering up the PC second time to see if the command stuck the PC powered off before POST and powered on again, and to my surprise it worked as you can see in the images! Thanks again!

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