While there are utilities that retrieve component statuses such as the Intel® System Information Retrieval Utility (SysInfo) and Intel® System Event Log (SEL) viewer utility, you may want to consider the use of Intelligent Platform Management Interface (IPMI)* for the specific task you have in mind.
* IPMI is provided "as is" with no support.
Other sites of interest are the following:
Hope this helps!
Thank you for your replies and aplogies for the delay ... so much going on at the moment
I found the setting in the bios, but haven't been able to find any WMI class that contains the info I'm looking for. The only one that appears to work is the CIM_PowerSupply class, but there's only 1 instance which reads OK, even if only 1 of the 2 power supplies is plugged in.
Do I need to install a specific driver for the correct classes to be available?
I mark your answer as the correct one, because it appears it is indeed IPMI that came to the rescue. There was no need to install tooling though. I was able to locate IPMI Controller WMI classes which gives me the info I want/need and a whole lot more info that will certainly be useful in the (near)future.