CPU and PCH Temperature Sensors in illumos

Wed, 14 Aug 2019 18:23:45 +0000

A while back, I did a bit of work that I’ve been meaning to come back to and write about. The first of these are all about making it easier to see the temperature that different parts of the system are working with. In particular, I wanted to make sure that I could understand the temperature of the following different things:

Intel CPU Cores

Intel CPU Sockets

AMD CPUs

Intel Chipsets

While on some servers this data is available via IPMI, that doesn’t help you if you’re running a desktop or a laptop. Also, if the OS can know about this as a first class item, why bother going through IPMI to get at it? This is especially true as IPMI sometimes summarizes all of the different readings into a single one.