Computer turned off by itself.

Last week, I was gone for almost an hour, and my computer tower shut off. I turned it on, the boot screen showed, and my tabs were still up. It did it again this week. Then, the other day, when I was helping my mom get furniture, it fell asleep. When I moved the mouse to wake it up, it made the noise it makes when I shut it off by pressing the power button on the tower and shut off. It turned on again after I pressed the button, and went to the boot screen, and my tabs were saved. Should I be worried?

Maybe, are you on a uninterruptible power supply? You can also check the event viewer to find logs and see if the power down was unexpected or not. If it was unexpected then that means your machine lost power for some reason, otherwise... well, it did turn itself off and you need to check for other causes, like maybe something in your power settings to power down, or a backup that is running and set to turn the machine off after its finished.

Worgen:
Maybe, are you on a uninterruptible power supply? You can also check the event viewer to find logs and see if the power down was unexpected or not. If it was unexpected then that means your machine lost power for some reason, otherwise... well, it did turn itself off and you need to check for other causes, like maybe something in your power settings to power down, or a backup that is running and set to turn the machine off after its finished.

I already looked at the event viewer, and didn't see anything.

VG_Addict:

Worgen:
Maybe, are you on a uninterruptible power supply? You can also check the event viewer to find logs and see if the power down was unexpected or not. If it was unexpected then that means your machine lost power for some reason, otherwise... well, it did turn itself off and you need to check for other causes, like maybe something in your power settings to power down, or a backup that is running and set to turn the machine off after its finished.

I already looked at the event viewer, and didn't see anything.

Well, its possible its a virus but that is rather unlikely, you could still dl and run malwarebytes to be sure, its one of the best removal programs around but not that great as a primary anti-virus. Could be over heating, but since you said it happens when its idle that makes me think that is also unlikely. I would make sure the power settings/bios were set to prevent it from going into hibernation since sometimes some machines have a hard time waking from that and will look like they are powered down when they aren't but I mainly encountered that with older dell machines. You could open the command prompt and run it in administrator mode then run 'sfc /scan now' that will check on your dll files, I've had it fix some problems before although not related to random power downs. You can also check on your task scheduler to make sure nothing on it is set to power things down at certain times.

I've experienced similar issues my my computer - have you done anything with your motherboard related to power settings or overclocking? Or is it a motherboard that "automatically" overclocks? Previously I've had issues where a windows update adjusts how the OS interacts with the power settings, but since the motherboard power settings are a separate system from the OS, when one or the other changes it can cause issues.

My solution was to initially stop overclocking, and then later on run a BIOS update.

Worgen:

VG_Addict:

Worgen:
Maybe, are you on a uninterruptible power supply? You can also check the event viewer to find logs and see if the power down was unexpected or not. If it was unexpected then that means your machine lost power for some reason, otherwise... well, it did turn itself off and you need to check for other causes, like maybe something in your power settings to power down, or a backup that is running and set to turn the machine off after its finished.

I already looked at the event viewer, and didn't see anything.

Well, its possible its a virus but that is rather unlikely, you could still dl and run malwarebytes to be sure, its one of the best removal programs around but not that great as a primary anti-virus. Could be over heating, but since you said it happens when its idle that makes me think that is also unlikely. I would make sure the power settings/bios were set to prevent it from going into hibernation since sometimes some machines have a hard time waking from that and will look like they are powered down when they aren't but I mainly encountered that with older dell machines. You could open the command prompt and run it in administrator mode then run 'sfc /scan now' that will check on your dll files, I've had it fix some problems before although not related to random power downs. You can also check on your task scheduler to make sure nothing on it is set to power things down at certain times.

It's probably not a big deal?

VG_Addict:

Worgen:

VG_Addict:

I already looked at the event viewer, and didn't see anything.

Well, its possible its a virus but that is rather unlikely, you could still dl and run malwarebytes to be sure, its one of the best removal programs around but not that great as a primary anti-virus. Could be over heating, but since you said it happens when its idle that makes me think that is also unlikely. I would make sure the power settings/bios were set to prevent it from going into hibernation since sometimes some machines have a hard time waking from that and will look like they are powered down when they aren't but I mainly encountered that with older dell machines. You could open the command prompt and run it in administrator mode then run 'sfc /scan now' that will check on your dll files, I've had it fix some problems before although not related to random power downs. You can also check on your task scheduler to make sure nothing on it is set to power things down at certain times.

It's probably not a big deal?

Well, I'm not sure yet, it depends on the cause, but if you aren't getting any power error messages in the event viewer then its probably not hardware or the power outlet. I suppose its always possible for it to be a dying motherboard since you can get really weird errors when one of those dies slowly but since you don't see power errors I think thats unlikely.

You're not really providing a lot of information. Is the computer hibernating? The tabs still up means browser tabs I assume. If the computer is booting back to where everything was (browser and other programs open), it's hibernating. If you have to turn it on and open up everything again, it's straight up turning off. The fact that it sounds like it's hibernating (since no events either) is a good thing because if something goes wrong, it'll just plain turn off. Check the power options and set sleep and hibernation to never. Laptops, by default, hibernate once the battery gets too low. If it is a laptop (barely any info provided) that's plugged in, maybe somethings wrong with the charger or the charging jack. Or if the laptop is on battery, and it's hibernating that fast (in an hour), then the battery is getting pretty bad (if it isn't the power settings). Laptops also switch their power settings when plugged in and on battery by default (unless you change them to match obviously).

Phoenixmgs:
You're not really providing a lot of information. Is the computer hibernating? The tabs still up means browser tabs I assume. If the computer is booting back to where everything was (browser and other programs open), it's hibernating. If you have to turn it on and open up everything again, it's straight up turning off. The fact that it sounds like it's hibernating (since no events either) is a good thing because if something goes wrong, it'll just plain turn off. Check the power options and set sleep and hibernation to never. Laptops, by default, hibernate once the battery gets too low. If it is a laptop (barely any info provided) that's plugged in, maybe somethings wrong with the charger or the charging jack. Or if the laptop is on battery, and it's hibernating that fast (in an hour), then the battery is getting pretty bad (if it isn't the power settings). Laptops also switch their power settings when plugged in and on battery by default (unless you change them to match obviously).

I haven't seen any error messages,

image

BTW, when I say boot screen, I mean the screen I see when I first turn on the computer. The screen that shows the manufacturer logo (In my case, Dell), and a loading symbol.

VG_Addict:
BTW, when I say boot screen, I mean the screen I see when I first turn on the computer. The screen that shows the manufacturer logo (In my case, Dell), and a loading symbol.

The computer will show the boot screen if the PC is turning on normally (after a shutdown) or if it goes into hibernation mode. If it's hibernating, it's some setting. If the PC is straight turning off, then it could be a number of things (from plain dust buildup to the power supply to a board issue). You said your tabs (browser tabs?) were still up so it sounds like it's hibernating after x amount of time.

Phoenixmgs:

VG_Addict:
BTW, when I say boot screen, I mean the screen I see when I first turn on the computer. The screen that shows the manufacturer logo (In my case, Dell), and a loading symbol.

The computer will show the boot screen if the PC is turning on normally (after a shutdown) or if it goes into hibernation mode. If it's hibernating, it's some setting. If the PC is straight turning off, then it could be a number of things (from plain dust buildup to the power supply to a board issue). You said your tabs (browser tabs?) were still up so it sounds like it's hibernating after x amount of time.

I wouldn't count on browser tabs being up to mean anything since you can set it so they stick where you last left off. Dust buildup would result in a heat shutdown but it sounds like the machine is idle and if it was overheating I would expect that when he was playing a game or something. I think its an issue with hibernation, I have seen that problem in dells before, so he would need to turn that off in the power settings and probably the bios also.

Worgen:

Phoenixmgs:

VG_Addict:
BTW, when I say boot screen, I mean the screen I see when I first turn on the computer. The screen that shows the manufacturer logo (In my case, Dell), and a loading symbol.

The computer will show the boot screen if the PC is turning on normally (after a shutdown) or if it goes into hibernation mode. If it's hibernating, it's some setting. If the PC is straight turning off, then it could be a number of things (from plain dust buildup to the power supply to a board issue). You said your tabs (browser tabs?) were still up so it sounds like it's hibernating after x amount of time.

I wouldn't count on browser tabs being up to mean anything since you can set it so they stick where you last left off. Dust buildup would result in a heat shutdown but it sounds like the machine is idle and if it was overheating I would expect that when he was playing a game or something. I think its an issue with hibernation, I have seen that problem in dells before, so he would need to turn that off in the power settings and probably the bios also.

I know, the question is if the browser (and other programs) are already open on sign-in or they have to be launched.

Phoenixmgs:

Worgen:

Phoenixmgs:

The computer will show the boot screen if the PC is turning on normally (after a shutdown) or if it goes into hibernation mode. If it's hibernating, it's some setting. If the PC is straight turning off, then it could be a number of things (from plain dust buildup to the power supply to a board issue). You said your tabs (browser tabs?) were still up so it sounds like it's hibernating after x amount of time.

I wouldn't count on browser tabs being up to mean anything since you can set it so they stick where you last left off. Dust buildup would result in a heat shutdown but it sounds like the machine is idle and if it was overheating I would expect that when he was playing a game or something. I think its an issue with hibernation, I have seen that problem in dells before, so he would need to turn that off in the power settings and probably the bios also.

I know, the question is if the browser (and other programs) are already open on sign-in or they have to be launched.

Well, thats still not as straight forward as you would think. Some browsers and programs will automatically open if the machine was shutdown with them open. Chrome tends to do this, so does the office suite.

Do you have a Battery Backup?

Did you check for ghosts?

Drathnoxis:
Did you check for ghosts?

image

OK, my computer shut off while it was on the boot screen.

Is my computer dying?

I felt the sides of the tower to see if it's overheating, but the sides are cold.

Does that mean it's not overheating?

VG_Addict:
OK, my computer shut off while it was on the boot screen.

Is my computer dying?

I felt the sides of the tower to see if it's overheating, but the sides are cold.

Does that mean it's not overheating?

Depends on what screen you mean, if it was the bios screen then that's not good, if it was the windows login, that's still not good but not as bad, possibly. You can go into the bios and you might have a temp counter in there somewhere so you could see if it is overheating. You won't be able to feel anything from the case, you need bios or a program like speccy that will tell you what the cpu is running at. It is possible that your motherboard is going, in which case you will probably need to look for a new machine or at least take it to someone who can actually examine it, only so much I can do with the descriptions you're giving.

Worgen:

VG_Addict:
OK, my computer shut off while it was on the boot screen.

Is my computer dying?

I felt the sides of the tower to see if it's overheating, but the sides are cold.

Does that mean it's not overheating?

Depends on what screen you mean, if it was the bios screen then that's not good, if it was the windows login, that's still not good but not as bad, possibly. You can go into the bios and you might have a temp counter in there somewhere so you could see if it is overheating. You won't be able to feel anything from the case, you need bios or a program like speccy that will tell you what the cpu is running at. It is possible that your motherboard is going, in which case you will probably need to look for a new machine or at least take it to someone who can actually examine it, only so much I can do with the descriptions you're giving.

I'm talking about the screen when you first turn on the computer, and you see the manufacturer's logo.

When I pressed the power button, the light turned on, turned off, then turned on again.

Went to BIOS, it says memory is running at 1600 Mhz.

My computer will be 6 years old this October. Could my computer just be old?

VG_Addict:

Worgen:

VG_Addict:
OK, my computer shut off while it was on the boot screen.

Is my computer dying?

I felt the sides of the tower to see if it's overheating, but the sides are cold.

Does that mean it's not overheating?

Depends on what screen you mean, if it was the bios screen then that's not good, if it was the windows login, that's still not good but not as bad, possibly. You can go into the bios and you might have a temp counter in there somewhere so you could see if it is overheating. You won't be able to feel anything from the case, you need bios or a program like speccy that will tell you what the cpu is running at. It is possible that your motherboard is going, in which case you will probably need to look for a new machine or at least take it to someone who can actually examine it, only so much I can do with the descriptions you're giving.

I'm talking about the screen when you first turn on the computer, and you see the manufacturer's logo.

When I pressed the power button, the light turned on, turned off, then turned on again.

Went to BIOS, it says memory is running at 1600 Mhz.

My computer will be 6 years old this October. Could my computer just be old?

Certain parts in the computer can wear out. I would expect parts to last more than 5 years, but some don't. Your motherboard is probably in a death spiral if it isn't a power supply problem (either the unit or connections). You have to bring it to somebody professional at this point if you want to save it. Replacing the motherboard usually means also replacing the CPU cuz models of motherboards are paired with models of CPUs, so that's very pricey. If the computer was prebuilt, you'd probably just have to replace the whole thing.

I do suggest getting a professional to look at it, it's pricey but not as much as the mobo+CPU if it turns out its something like a faulty RAM stick instead. You don't sound as if you know much about testing hardware, and trying to use this near-dead forum as tech support doesn't seem like it's getting you very far, with the rate of progression of your PC failing.

Used a program called Open Hardware Monitor, which tells you the temperatures for your CPU and graphics card and it says the temperature is 40 C. So, I guess it's not overheating.

VG_Addict:

Worgen:

VG_Addict:
OK, my computer shut off while it was on the boot screen.

Is my computer dying?

I felt the sides of the tower to see if it's overheating, but the sides are cold.

Does that mean it's not overheating?

Depends on what screen you mean, if it was the bios screen then that's not good, if it was the windows login, that's still not good but not as bad, possibly. You can go into the bios and you might have a temp counter in there somewhere so you could see if it is overheating. You won't be able to feel anything from the case, you need bios or a program like speccy that will tell you what the cpu is running at. It is possible that your motherboard is going, in which case you will probably need to look for a new machine or at least take it to someone who can actually examine it, only so much I can do with the descriptions you're giving.

I'm talking about the screen when you first turn on the computer, and you see the manufacturer's logo.

When I pressed the power button, the light turned on, turned off, then turned on again.

Went to BIOS, it says memory is running at 1600 Mhz.

My computer will be 6 years old this October. Could my computer just be old?

As Ewok says, that makes it sound like either the power supply or the motherboard. Generally you have to start worrying about hardware failure after 5 years so you could get it repaired, but you would probably be better off getting a new computer. Just make sure to grab your hard drives, those can be moved to a new machine easily, so can your vid card and ram, but ram is more complicated since if its a 6 year old machine, then chances are its still using ddr 3 ram and now the standard is ddr4 which isn't backwards compatible. But yeah, probably time for a new machine.

VG_Addict:
Here are the Speccy results: http://speccy.piriform.com/results/slWS1EZuSgb8lgPomdoiInN

Hmm, not as old as I assumed, weird that it had windows 8.1 in 2017. The temps look good in it, I don't see anything there. You are running a lower spec system then I thought, not much ram, slower cpu and just an integrated video card. I still think that its hardware dying, either the motherboard or the power supply unit and I don't think its really worth the price to repair the system unless money is really tight and even then it might still be cheaper to get similarly specced machine but with windows 10 and a gpu.

Also, I ran it through Safe Mode, and my computer booted up like normal.

 

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