Hello, I have built a PC based on the DN2800MT desktop board for use in an automated control system. I would like to understand more about the custom solutions header that is present on this board.
I quote the user manual:
SMB_CLK and SMB_DATA: SMBus interface, reserved for Intel use.
It also describes the pins of the header as SMB_CLK_RESUME and SMB_DATA_RESUME.
Before I go ahead and connect some stuff up to see for myself, I am wondering what does it mean; reserved for Intel use? Will I void the warranty? Also, what does the additional RESUME mean in the pin description? Is this the right place to connect to the SMBus?
I too would be happy if someone could answer your two last questions:
Why do the pins have the suffix _RESUME, and is this indeed the proper location to interface the SMBus (although I can't say I have found any alternatives)?
Btw. It would be nice to know if the SMBus signals are inverted or not.
Doesn't help much, but have a glance at the Custom Solutions Header for Desktop Boards page:
Towards the bottom of the page is this table for the DN2800MT
Key (no pin)