If you changed platforms/generations of CPU, including motherboard, you cannot realistically expect to continue to use your previous Windows installation as is. No offense Helpstar, but simply deleting "processors" in device manager isn't going to be terribly helpful in most cases unless you've only changed to a different CPU that is part of the same gen.
Differences in chipset, including CPU, motherboard and storage controller drivers, are usually not well transitioned to a new and different hardware configuration.
I would highly recommend that you start by doing a COMPLETE, FULL and CLEAN installation of Windows to eliminate any possibility that previous drivers, registry settings or resource allocations are not to blame. After, when you have finalized the reinstallation of the most updated driver versions and made sure that your motherboard bios is fully up to date on the latest revision, if there are still problems, THAT is when you should start looking at other issues.
Saying "this only happens when I use the CPU" makes absolutely ZERO sense, because you are ALWAYS using the CPU, every millisecond the system is on. The problem COULD be related to the CPU, but at this point I think it's a stretch to simply assume that it is without taking the correct steps to eliminate other likely and probable problems first.
As far as the power supplies are concerned, Sentey has VERY few units that they've ever sold that were not pretty bad and most were terrible. Eurocase is also not a well known trusted brand and is likely to be low quality, although I see NO reviews ANYWHERE of any Eurocase power supply so I can't tell you that it's likely to be your problem unless you are running a discrete graphics card that requires supplemental power or are overclocking. Since neither of those seems to be the case, it's not AS likely, but still IS likely to be part of the problem. I would resolve other issues before focusing on this however, unless you have or can borrow a known good high quality unit temporarily to further eliminate these power supplies being to blame. While it's clear they are not good, I do not think this is the primary problem, yet.
Start with a clean installation of Windows 10, unless the problem is so bad that you are unable to perform a clean install. If THAT is the case, THEN it is likely you have a CPU, motherboard or power supply issue.
Windows 10 Clean install tutorial