06-25-2021 03:07 PM - last edited on 03-05-2024 06:58 PM by ROGBot
06-25-2021 07:28 PM
06-25-2021 08:14 PM
06-26-2021 09:33 AM
ultralazyway wrote:Â*
I have the Maximus XIII Hero but I suspect this applies to other boards as well (ROG STRIX Z590, PRIME Z590)
Yes I know there's a FW based TPM option in the BIOS (Intel PTT), but I prefer to have actual HW over FW emulation when I have the option. So I want to get the physical TPM module.
The manual shows a 14+1 pin TPM module which after a bit of looking around... I believe based on the number of pins and the way its keyed the TPM_SPI module that ASUS sells is what's compatible with my MB. Only...
The MB manual contains this diagram (attachment 1) and the module manual contains this other diagram (attachment 2),
It doesn't help that the diagrams are not consistently oriented, but if you rotate one of them... I noticed a couple things...
1. what's labeled pin 1 is different...
2. All the (not-not-connected(NC)) pins line up... except for 2 (IRQ and CS pin)... they're swapped...
1. might just be a documentation difference, that in itself isn't an issue... as long as all the pins line up
2. is a bit more alarming... Is one of the diagrams just wrong? Maybe these two pins are supposed to cross-connect? Do I have the wrong module?
06-27-2021 05:37 PM
CFIIMEI wrote:
Â*
I went through the same thing with ASUS, it took about 8 people to finally confirm thats the right TPM for my XIII Hero, I ordered one and installed it last night and it appears to have been recognized.
06-26-2021 09:45 AM
06-27-2021 09:55 PM
ultralazyway wrote:
I have the Maximus XIII Hero but I suspect this applies to other boards as well (ROG STRIX Z590, PRIME Z590)
Yes I know there's a FW based TPM option in the BIOS (Intel PTT), but I prefer to have actual HW over FW emulation when I have the option. So I want to get the physical TPM module.
The manual shows a 14+1 pin TPM module which after a bit of looking around... I believe based on the number of pins and the way its keyed the TPM_SPI module that ASUS sells is what's compatible with my MB. Only...
The MB manual contains this diagram (attachment 1) and the module manual contains this other diagram (attachment 2),
It doesn't help that the diagrams are not consistently oriented, but if you rotate one of them... I noticed a couple things...
1. what's labeled pin 1 is different...
2. All the (not-not-connected(NC)) pins line up... except for 2 (IRQ and CS pin)... they're swapped...
1. might just be a documentation difference, that in itself isn't an issue... as long as all the pins line up
2. is a bit more alarming... Is one of the diagrams just wrong? Maybe these two pins are supposed to cross-connect? Do I have the wrong module?
06-27-2021 11:43 PM
06-30-2021 12:02 PM
74lobster wrote:
Someone can post a link where we can actually find and buy this TPM module ?
Which are the differences between these 2 TPM modules ?
Asus TPM-M R2.0 Hardware Security Chip – Metallic
90MC03W0-M0XBN1
ASUS TPM SPI Modul, Securely Store Keys, Data Passwords, 14-1 Pin, SPI Interface, Nuvoton NPCT750 Chip
90MC07D0-M0XBN0
Thanks in advance.
06-30-2021 11:07 PM
ultralazyway wrote:
Long story short, its interface/protocol difference between the chips. Interface determines if something will physically fit. Protocol can be thought of like "language", the board and the TPM chip must speak to same language in order to be compatible.
Asus TPM-M R2.0 uses LPC for protocol. Note how the key pin (the pin missing) is 3rd from the end
ASUS TPM SPI uses SPI for protocol. Note how the key pin is on the end.
Every board is only compatible with a specific TPM chip, you have to determine which one your board needs.