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About Se7enLC

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  1. Found some pretty damning evidence on the Tom's Hardware review for the PSU (750W and 850W versions). Thermaltake ToughPower GRAND RGB 850W Thermaltake ToughPower GRAND RGB 750W I bought a Corsair RM850X and it works just fine, I get something like 30-40 minutes of runtime on the 1500VA supply at idle. Tom's Hardware says this PSU has a Holdup time of 30 ms (vs 18 ms and 16 ms for Thermaltake) and Power loss to PWR_OK falling edge of 21.1 ms (compared to 15.88 ms and 13.9 ms). Corsair RM850X White And some details about how they measure holdup time: https://www.tomshardware.com/reviews/how-we-test-psu,4042-6.html I'm not 100% sure this was the cause, but replacing the otherwise-brand-new-and-fully-functional PSU with a different one fixed the problem.
  2. Not a dumb question at all, thanks for the reply. I just double checked, and yes - I'm plugged into the grey+white outlets labeled "Surge+Battery". With the computer powered up at idle, I see estimated run time of 40 minutes. When I launch a benchmark, that number drops to around 14 minutes as the CPU+GPU spin up. But when I unplug the UPS the computer powers off immediately.
  3. I have an "old" UPS (APC 1000VA model BR1000G, stepped sinewave). I upgraded my machine, including a Thermaltake ToughPower 750W Gold PSU (https://www.thermaltakeusa.com/toughpower-grand-rgb-750w-gold-full-modular.html). The UPS is no longer able to keep the machine running when I unplug the UPS. SInce it was a few years old, I first tried to replace the batteries. That didn't change it. I then upgraded the UPS to one that does "pure sinewave" and claims to be PFC compatible. Also 1500VA (CyberPower CP1500PFCLCD). This one ALSO can't keep the machine running when unplugged. Are there some compatibility issues where some PSUs don't play nicely with UPS? I don't want to just keep throwing money at the problem. Any suggestions? Perhaps a known good PSU list?
  4. When most people are faced with a problem like this, they just have to unscientifically try a bunch of things, because they can't just go out and buy a bunch of extra phones just to test them, and they can't leave their daily driver on a table for a full day. But you've got those extra test phones, and it's not that hard to swap over to another phone for the sake of SCIENCE. You tested your S9+ to the newly-purchased S9+ and saw a huge difference. Since you weren't actively using the phone at the time, that means it can't have anything to do with your usage patterns. It must be either the hardware or the software. To test this, you really need to factory reset both devices and set them up identically. If the problem persists, it's a provable hardware problem. If the problem disappears, it's a software or configuration problem. Isn't that exactly what you'd do to diagnose a PC problem? You wouldn't just keep fscking around with a borked Windows installation, you'd reimage the machine. If you determine that it is a software issue, then you can start adding applications back in until you find the culprit. Most likely you won't find it, and when you get the new installation back to fully installed, it will work just fine.