Two months ago, I bought a Jackson Master/Slave Green Energy Saving Powerboard. I plugged my high-end gaming desktop computer into the master port, and the screen, speakers, etc. into the slave ports. This appeared to be working correctly. When the computer went to sleep, all peripherals turned off automatically. When the computer woke, the peripherals turned on again.
I recently noticed that when the computer was sleeping, the speakers and screen would turn on intermittently just for a couple of seconds. I thought the computer might be drawing an additional current momentarily for some reason.
Last night, my computer spontaneously turned off after 10 minutes. Then on again, then off again, then repeat. I removed the Green Powerboard and replaced it with a regular one. I opened the computer and dusted it and the heat sinks thoroughly. Nothing felt hot. I started it again. After being on for a couple of minutes, the computer repeated its flailing.
I suspect either an overheating CPU or GPU or a faulty power supply is the issue due to the symptoms. I can't install a CPU Temperature monitor quickly enough to measure the temperature. Maybe the power supply was damaged by the Green Powerboard, or it could just be coincidental timing given it's three years old.
I want help narrow down the cause to prevent unnecessary expense and effort. Is there any evidence that Green Powerboards can damage or wear out computer equipment? Is a three-year lifespan for a power supply reasonable or too short? If I replace my power supply, am I going to burn it out again using the Green Powerboard?