I have had an issue for a while where the computer will suddenly do an instant power-down. I thought it might be the power supply so that’s been replaced. I have also seen cases where a web page would have a video or other animated picture on it and that would use up enough CPU time that the monitoring program would pop up and warn me that the CPU temperature was climbing past 65°C. However, when this power-down happens, that monitor doesn’t have time to even appear, so it’s not likely to be a case where the computer is shutting down because it’s trying to save itself from overheating.
Normally, there’s no warning that this is going to happen. Today, I had a little bit of warning that something was wrong, but by the time I realized I probably should shut programs down, the power cut out.
At the time it happened, I had one web browser going with over 100 tabs open. Some were for research I was doing and the rest were things I was going to get back to afterwards. I couldn’t get a video to play in it and a couple other pages to load, which will sometimes happen if I’m reaching the limit of what that browser can support in a session, so I switched over to a different browser. That browser started responding more and more sluggishly, and just as I was going to close it, that’s when the computer crashed.
I didn’t have Task Manager open at the time, but I’m wondering if the reason why the computer is crashing is because one of the cores in the CPU spikes at 100% usage and Windows 7 Pro just can’t cope with it. It’s an AMD FX-8350 8-core processor at 4.00 GHz on an Asus M5A99X EVO v1.0 motherboard.