Yes, Voltage in and out.
If you are not overclocking, don't worry about those voltages. The voltages you need to care about are 12VDC, 5VDC and 3.3VDC as those are provided by the power supply. The other voltages you see are motherboard generated from the PSU supplied voltages needed by the CPU, RAM, and other devices.
Have you checked out Speccy from the makers of CCleaner. It does not run full time in the background, but it is very informative.
I like SpeedFan but it has many limitations that are common to all 3rd party monitors and that is properly matching sensor to label, and they often give data on things we just don't need, or have any control over. And that varies CPU to CPU, and more importantly, motherboard to motherboard. For this reason, when it comes to HW monitoring, I generally like the monitor provided on the utilities disks that came with the motherboard, or from the motherboard's download page. I do use CoreTemp to monitor my CPU temps, however.If so, it might explain some readings given by SpeedFan that I have never understood. I shall attach a screenshot to show what I mean. It lists 3 different Vin values. If they mean voltage in, then where are they measured, and what should they indicate to me?
If you are not overclocking, don't worry about those voltages. The voltages you need to care about are 12VDC, 5VDC and 3.3VDC as those are provided by the power supply. The other voltages you see are motherboard generated from the PSU supplied voltages needed by the CPU, RAM, and other devices.
Have you checked out Speccy from the makers of CCleaner. It does not run full time in the background, but it is very informative.