I have asked around and talked with some of the PCH architects and we are guessing that we are refereeing to the overclocking watch dog timer in the pch, commonly referred to as the overclocking watchdog timer. If you can give us more details and a specific chip set you are developing for, we can find the information requested.
We are interested in supporting J1900 but ideally we would like to have watchdog support for all chipsets that support it. On Linux we are able to arm and feed all supported watchdogs with the watchdog daemon, we simply would like to have the same functionality on Windows.
Can you specifically tell us in regards to Linux, which watchdogs are you arming/feeding? Then we can figure out which ones are available in windows that you are requesting information on. If needed feel free to use a PM for these details.
I am also interested in getting the SDK to interface with the watchdog time from Windows 7. I am using the Intel Core i7-3555LE processor and the Intel QM67 chipset. I am writing software that monitors the status of several Windows Services and processes. If one of these services or processes hangs or crashes (including the monitoring software) I need the processor to reboot.
Have you been able to find out anything about this?
The hardware we are discussing complies to ACPI specifications, as such I beleive the following link should answer your questions