I’ve been trying to enable PTT on my Zotac EN1080K and followed maxdarksol’s guide, but was surprised to find that PTT was already active and enabled yet Windows 10 doesn’t recognize this. Intel FIT and MEInfo also show that the BIOS image has PTT turned on at power-up. There’s no setting within the BIOS UI to turn PTT on/off.
Is there something else that could be preventing Windows from recognizing the TPM?
You have the not set in FPF, this means you have manufacturer mode enabled.
So you should set your FPF and exit manufacturer mode.
This is good, as if you would have disabled in FPF and normal mode, you couldn’t set it.
I’ve now set in FPF, but Windows still doesn’t recognize the TPM despite PTT reading as enabled in both FPF and ME and listed as Present/Enabled in the FW capabilities.
Did you enabled it in bios? If you don’t have the option, you can try the trick from the other post. You could have to downgrade the ME firmware to make the setting stick, then you can update it again.
There is still no option in the UI. Booting to a setup_var command grub boot disk and running setup_var 0x6BF still returns 0x01 like before I set in FPF which should mean PTT is enabled:
0x26EBD Form: PTT Configuration, FormId: 0x2793 {01 86 93 27 12 10}
0x26EC3 Text: Statement.Prompt: PTT Capability / State, TextTwo: N/A {03 08 14 10 16 10 15 10}
0x26ECB Subtitle: Statement.Prompt: , Flags: 0x0 {02 87 02 00 00 00 00}
0x26ED2 End {29 02}
0x26ED4 One Of: TPM Device Selection, VarStoreInfo (VarOffset/VarName): 0x6BF, VarStore: 0x1, QuestionId: 0x15B, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 37 10 38 10 5B 01 01 00 BF 06 10 10 00 01 00}
0x26EE5 One Of Option: dTPM, Value (8 bit): 0x0 {09 07 3A 10 00 00 00}
0x26EEC One Of Option: PTT, Value (8 bit): 0x1 (default) {09 07 39 10 30 00 01}
0x26EF3 End One Of {29 02}
0x26EF5 Gray Out If {19 82}
0x26EF7 QuestionId: 0xC00 equals value 0x1 {12 06 00 0C 01 00}
0x26EFD One Of: PTP aware OS, VarStoreInfo (VarOffset/VarName): 0x6EA, VarStore: 0x1, QuestionId: 0x15C, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 19 10 1A 10 5C 01 01 00 EA 06 10 10 00 01 00}
0x26F0E One Of Option: PTP Aware, Value (8 bit): 0x1 (default) {09 07 1B 10 30 00 01}
0x26F15 One Of Option: Not PTP Aware, Value (8 bit): 0x0 {09 07 1C 10 00 00 00}
0x26F1C End One Of {29 02}
0x26F1E Suppress If {0A 82}
0x26F20 QuestionId: 0xC03 equals value 0x0 {12 86 03 0C 00 00}
0x26F26 QuestionId: 0xC02 equals value 0x0 {12 06 02 0C 00 00}
0x26F2C Or {16 02}
0x26F2E End {29 02}
0x26F30 One Of: TPM 1.2 Deactivate, VarStoreInfo (VarOffset/VarName): 0x6, VarStore: 0x14, QuestionId: 0x15D, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 17 10 18 10 5D 01 14 00 06 00 10 10 00 01 00}
0x26F41 One Of Option: Disabled, Value (8 bit): 0x0 (default) {09 07 04 00 30 00 00}
0x26F48 One Of Option: Enabled, Value (8 bit): 0x1 {09 07 03 00 00 00 01}
0x26F4F End One Of {29 02}
0x26F51 End If {29 02}
0x26F53 End If {29 02}
0x26F55 End Form {29 02}
Security device support enabled in var too?
Yes, Security Device Support is also enabled and was on by default.
0x2AA4A Form: Trusted Computing, FormId: 0x27C0 {01 86 C0 27 C5 15}
0x2AA50 Subtitle: Statement.Prompt: Configuration, Flags: 0x0 {02 87 D6 15 00 00 00}
0x2AA57 End {29 02}
0x2AA59 One Of: Security Device Support, VarStoreInfo (VarOffset/VarName): 0xF30, VarStore: 0x1, QuestionId: 0x2E6, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 C9 15 EB 15 E6 02 01 00 30 0F 10 10 00 01 00}
0x2AA6A One Of Option: Disable, Value (8 bit): 0x0 {09 07 D1 15 00 00 00}
0x2AA71 One Of Option: Enable, Value (8 bit): 0x1 (default) {09 07 D0 15 30 00 01}
0x2AA78 End One Of {29 02}
0x2AA7A Text: Statement.Prompt: NO Security Device Found, TextTwo: {03 08 EC 15 02 00 02 00}
0x2AA82 End Form {29 02}
0x2AA84 Form: Trusted Computing, FormId: 0x27C1 {01 86 C1 27 C5 15}
0x2AA8A Subtitle: Statement.Prompt: Configuration, Flags: 0x0 {02 87 D6 15 00 00 00}
0x2AA91 End {29 02}
0x2AA93 Suppress If {0A 82}
0x2AA95 QuestionId: 0xBF6 equals value 0x0 {12 06 F6 0B 00 00}
0x2AA9B Gray Out If {19 82}
0x2AA9D QuestionId: 0xB8E equals value 0x1 {12 06 8E 0B 01 00}
0x2AAA3 One Of: Security Device Support, VarStoreInfo (VarOffset/VarName): 0xF30, VarStore: 0x1, QuestionId: 0x2E7, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 C9 15 EB 15 E7 02 01 00 30 0F 10 10 00 01 00}
0x2AAB4 One Of Option: Disable, Value (8 bit): 0x0 {09 07 D1 15 00 00 00}
0x2AABB One Of Option: Enable, Value (8 bit): 0x1 (default) {09 07 D0 15 30 00 01}
0x2AAC2 End One Of {29 02}
0x2AAC4 End If {29 02}
0x2AAC6 End If {29 02}
Set FPF option is not required,my FPF option is not set and have Manufacturing Mode enabled,my PTT normal operation.