I had built my first computer last january, which ran without a single problem until, one day when I started playing a new game which used a large amount of the computer's processing power it shut itself down, an action that the motherboard's diagnostics blamed on the power supply not supplying enough power (I got a cheap fifteen dollar one, not expecting this would be a problem), and afterwards, the computer would not be able to finish booting up before shutting itself down again. I ordered a new, forty dollar power supply, replaced the old one, hooked all of the power cables to the motherboard using the motherboard manual as a guide, and when I pressed the power button, the fans came on, the screen turned on, and, not having displayed anything, turned off again, starting a cycle of turning on then turning off every minute or so that stopped when I turned the computer off. the next time I turned on the computer, it appeared to be completely normal until about a minute after the desktop (windows 8.1) loaded, when it turned itself off again. Every power on since has been a version of one of these two, with no specific pattern. I also found that occasionally, one of the fans will start making a high, loud noise when the computer shuts itself down or if the screen is doing the thing where it turns itself on and then off every minute or so, which I assume is related to the "overclocking failed" message (on the same diagnostics screen that told me that there was a problem with the power supply) that the computer will show after the fan makes the noise, despite my never using the motherboard's overclocking software. When I went into the BIOS on one of the successful power-ons, I found that it will also turn itself off in the BIOS. The case is not dirty or dusty, the motherboard's diagnostics says that the two sticks of RAM have no problems, the original diagnostics message about my first power supply has not appeared with my second, and the cables and connections for the power supply in my case appear to be fine. Thanks for any help.
Problem: computer has shutdowns not related to age, memory/RAM, or power supply
- Thread starter Odd135
- Start date
How hot is the processor running? Modern computers will shut down when the processor runs too hot. You can use a program like Coretemp or Realtemp to get the CPU's temperatures in Windows, or your computer's BIOS settings should have a status page that will show the temperature.
Casey
Casey
82 F isn't hot at all (room temperature is usually around 70-80 F, depending on personal preference). However, most computer BIOSes list temperatures in C, in which 82 C would be too hot (around 180 F). Are you certain your BIOS is reporting 82 F?
Casey
Casey
It still wasn't the power supply. When I received the second power supply and plugged it in, it still had the same problems, and when I opened the side of the case to see which fan was making the high whirring noise, it was the processor fan, which would speed up and then stop repeatedly when the computer tried to shut itself down, and even though the processor temperatures continued to appear normal, I decided that the problem was with the fan; that the fan was failing at a certain rpm, and the motherboard would shut the computer down and increase the rpm of the processor fan to avoid overheating. After ordering a new fan and properly installing it (with the thermal compound), I found that the computer would still shut itself down, except after a longer period of time than before, and that it would create a steady, quieter fan noise that would not flicker on and off. I suspect that the processor was mildly fried when the first power supply went out, but I want to make sure that it really is the processor before I go out to buy another one. Again, thanks for any help, and for the help so far.
I didn't try that yet, but I am now. As far as I can tell, the computer is fine for the first ten minutes it starts up, and the desktop will load, but it will always shut itself down, suggesting that the components are all still working until they heat up to a certain point.
Coming back to this thread after a while and reading the most recent suggestion, I can't do that anymore. While the motherboard sensors appeared to be working (for example, they would start around room temperature and warm up, in the cpu's case, to about 95 degrees Fahrenheit), when the computer would turn off and on and rev the fans, there would be a burning, ozone smell. After I decided that the smell must have been coming from the processor, replaced the fan, and finally replaced the processor, I found that the computer would not restart itself in the bios after five minutes, as it used to.
After leaving it in the bios for an hour or so, I restarted and went to the desktop, where, again and thankfully, it did not restart, until I tried to connect to the internet. After the computer restarted itself in the normal fashion (no whirring fans or ozone) I thought that the problem was that it was because the internet security updates had not been installed (which was stupid, now that I think about it), and after going to the desktop, finding I could now connect to the internet, and starting to install the updates, the computer abruptly restarted itself in the unusual, whirring fans and ozone fashion. After repeating the process, the computer installed the updates and restarted itself without the whirring fans and ozone to finish installing the updates. After it finished installing, I went to the desktop again, where the computer completely shut itself down, apparently never to turn on again, after repeated stabs at the power button on the case and restart button on the motherboard (finishing the reason I can't check the temperatures anymore). The green power light on the motherboard is still on, though, and stays lit long after the motherboard battery is removed. Here are the long overdue system specifications:
Motherboard - ASUS P8Z77-V LX LGA 1155 Intel Z77 (atx form factor)
Processor - Intel Xeon Quad-Core E3-1220V2, speed-3.1GHz, socket-LGA1155
Memory - 2x Crucial Ballistix Sport DDR3 1600 MT/s UDIMM 240-Pin
Hard Drive - WD Blue 1 TB Desktop Hard Drive: 3.5 Inch, 7200 RPM, SATA 6 Gb/s, 64 MB Cache
Graphics Card - ASUS GT640 2GB DDR3
Power Supply - EVGA 430W 80PLUS Certified ATX12V/EPS12V
Again again, thanks for any help, and for the help so far.
After leaving it in the bios for an hour or so, I restarted and went to the desktop, where, again and thankfully, it did not restart, until I tried to connect to the internet. After the computer restarted itself in the normal fashion (no whirring fans or ozone) I thought that the problem was that it was because the internet security updates had not been installed (which was stupid, now that I think about it), and after going to the desktop, finding I could now connect to the internet, and starting to install the updates, the computer abruptly restarted itself in the unusual, whirring fans and ozone fashion. After repeating the process, the computer installed the updates and restarted itself without the whirring fans and ozone to finish installing the updates. After it finished installing, I went to the desktop again, where the computer completely shut itself down, apparently never to turn on again, after repeated stabs at the power button on the case and restart button on the motherboard (finishing the reason I can't check the temperatures anymore). The green power light on the motherboard is still on, though, and stays lit long after the motherboard battery is removed. Here are the long overdue system specifications:
Motherboard - ASUS P8Z77-V LX LGA 1155 Intel Z77 (atx form factor)
Processor - Intel Xeon Quad-Core E3-1220V2, speed-3.1GHz, socket-LGA1155
Memory - 2x Crucial Ballistix Sport DDR3 1600 MT/s UDIMM 240-Pin
Hard Drive - WD Blue 1 TB Desktop Hard Drive: 3.5 Inch, 7200 RPM, SATA 6 Gb/s, 64 MB Cache
Graphics Card - ASUS GT640 2GB DDR3
Power Supply - EVGA 430W 80PLUS Certified ATX12V/EPS12V
Again again, thanks for any help, and for the help so far.
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