I can be working on my computer when suddenly the screen goes blank and I get analog power save mode. The only way to get my computer going again is to turn it off at the power source and back on. What is happening?
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mjjbooks
ANSWERS: 4
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How do you know it is going into power save mode? Usually sudden stoppage of a unit without an operating system crash is caused by overheating of the CPU, mainboard or power supply. Download the program from the mainboard manufacturer that will display and log the temperature sensor output. If an alarm goes off at the default threshold, you need to correct the problem with more airflow and/or a larger heatsink. If the CPU is overclocked, run it back at its normal speed and see if the problem resolves. If it's not a thermal spike, it could be a breaker in the power supply (ground fault - swap out the PSU and see if there's a change), a damaged component on the board such as an electrolytic capacitor (the capacitance in these fluctuates in response to temperature), or even a severe fluctuation in the AC source - make sure you try it on a different circuit if possible.
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It might be your hard drive. If you are using a Windows computer, click Start My Computer Right click on your C: drive, or your main primary hard drive Click Properties Tools Under error checking, click Check now and check all 2 check marks.
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I actually was having that problem recently, and it turned out to be some malware! Usually it's either a part overheating (CPU or motherboard or various other items), your hard drive starting to go (as mentioned in another answer) or your power supply not being sufficient to run everything you have on it. Unfortunately, that is one of the hardest problems to diagnose, in my experience, because I've seen SO many causes with similar symptoms.
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Your graphics card is over-heating and the GCPU is shutting down. Most likely the little fan on top of the video card has stopped turning. Since waiting a while cools it down and it starts working again, the problem can be fixed with a new heatsink and fan for your Video card. or just buy a new video card.
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