What methods exist for determining energy usage?
What methods exist for determining energy usage?
To achieve accuracy you must separate all the 12V, 5V, and 3.3V wires and use a suitable clamp meter for each. Or connect individual voltages via precision shunts and link them to a voltmeter. This method allows scaling volts to amps. Most setups need a tailored harness. It appears available now: Thermal Grizzly High Performance Cooling Solutions - WireView. Premium heat dissipation options for computer chips. www.thermal-grizzly.com. Seems limited to GPUs, curious about the EPS/ATX version.
I believe you were looking for information about a PSU that includes built-in monitoring features. It would be helpful if more options were available, standardized across different models, allowing you to use third-party software or the built-in OS tools. Unfortunately, I recently purchased a Seasonic Prime PSU at a significant discount last year, and I don’t need an additional large PSU for my upcoming desktop project.
This will bring you near but not quite there. You'll need to rely on the PSU's specifications under varying conditions; it simply can't respond quickly enough to handle sudden power surges.
I discovered a Linux driver for the Link function on their USB-powered RMx and HXi power supplies, which are significantly cheaper. However, Corsair PSUs appear to be limited in availability. It’s possible they’re facing financial issues or may no longer be producing them.
This power meter has proven quite interesting. I recorded my workstation's performance at 77 W idle and 165 W under full CPU load. There are noticeable differences in wattage between when the system is cold versus when it's running hot—probably because of higher resistance in the copper as it warms up. I haven't tested it on the J5040 yet; I'm planning to mount it next to the heatsink I received.