Power Cuts Out Only when FFXIV is Used...

[Raist]

um.. sure your motherboard properly supports your CPU? The one you listed looks like a board for Intel and not AMD. It could be marginally supporting that CPU until you try to run it full bore in XIV and it's buckling under the draw--could be that something along one of the busses suffers a dip in power just enough to trip a reset. Heck... capacitors could be drying out or something else in voltage regulation could be causing it to skew too much and it throws something out of whack in the north/south bridges. Seen that happen with Gigabyte many times---bad caps around the CPU socket.

Don't think you can completely rule out your PSU yet either. That card can potentially draw 170W on it's own---210W if it's the limited edition (the former calls for 500W PSU, the latter a 550W). So you could possibly be hitting 300W+ just on raw computing power. Have to remember, XIV is slamming your CPU, GPU, RAM, NIC, and drives in a big way. You may not be getting the same effect with other applications. Are you sure that your stress test is hammering things in kind? If you have a smart UPS on your system, you may be able to log or somehow view the power draw of the system during the tests and compare it to what goes on with XIV running. Alternatively, you may be able to do something similar with tools like GPU-z and CPUID's HWMonitor to try to determine just how much you are actually pulling.

Just don't feel entirely confident in a 600W PSU for that level of hardware... even though it carries an 80+ rating. The vidcard recommendation is 500W for a standard card in a standard system... you've got two drives in there and an advanced cooler on the CPU. That makes me wonder if you throttling the system somehow (CPU, or if you have a special edition GPU that is overclocked by default, or you've tweaked it yourself). If so, that 500W recommendation can go out the window. It may sound impractical, but if you know anyone with a higher end PSU that you can test against, it may be worth the effort just to rule it out.

Then there's the issue of hot pockets that can come into play as well.... IDK how many times I've seen devices crap out because they got a little too hot in one spot. Not just Vid Cards either. Creative Labs cards... NIC's.... RAM chips getting too hot in the channels between them... one or more cores of a multi-core CPU getting a little too hot. It's so easy for these little gremlins to creep up on us... and they usually rear their ugly heads suddenly in the summer. I'm guessing it's generally been cooler the last 6 months?