computer keeps shutting down after around 30mins

lorenz_929

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Jan 26, 2014
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my computer keeps shutting down after around 30mins. it will just turn off like nothing else happens.

also, the computer can't see all my ram, i have 16gb ram but it only shows 8gb ram.

also, if it shutsdown unexpectedly, when trying to turn it on it says, "reboot and select proper boot device or insert boot media in selected boot device and press a key".

after a few off and on it will boot up normally, then shutsdown after 30mins again.

i already tried cleaning the inside of my tower since i thought it might be dust buildup, but it still shutsdown.

i have asked other people about it and they said it might be my motherboard. though im not sure if i should buy a new one w/out finding out everything that's wrong.

please help me, thank you.
 
Solution
In addition to doing the above, download the free version of CCLEANER and run it http://www.piriform.com/ccleaner/download

This program will delete some passwords, so you may have to gain access to your programs by re-typing the user name along with the passwords.

Over time, all computers accumulate some junk and that's where CCLEANER comes in handy. (The original name was Crap Cleaner).

Rams Anirudh

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If your motherboard capacity is 8GB no matter how much RAM you put it will accept 8GB only. It could also be a problem in RAM if 8/16 is shown. Regarding Shutdown and restart error, it could be bec if HD is not connected properly in the computer
 

lorenz_929

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its a one yr old pc and it shows 16gb ram before, i have not done anything to my pc since i bought it last yr. this is the first problem that i have encountered with it. i didnt add or remove anything on it.
 

lorenz_929

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windows 8.1 was 8 and i upgraded
Intel® Core™ i7-3770 Processor (3.40 GHz)
16gb ram
60gb ssd + 3tb hdd
NVIDIA GeForce GT630 4 GB DDR3
and the motherboard is a gigabyte ga-b75-d3h i think, that's what it says in there.

i havent add any hardware or upgrades on my pc so theyre all the same from when i bought it.
 
Can you install "RealTemp" and "CPUZ" and check what the temps are? If by any chance you have a poorly seated CPU/heatsink then temps will gradually rise until the CPU shuts itself off as a safety feature.

You can also check the temps in the BIOS for verification.

When was the last time you cleaned the inside of the computer? Use a can of compressed air and clean the inside very carefully. Do not bump or damage any parts in the process.
 

lorenz_929

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i'll try doing those later, also, i just cleaned my tower because of these incident so theyre all clean now. but its still shutting down.

i tried looking in the bios for the temps, but i couldnt check them. i looked at how to check those from different sites and they all said the same thing.

check the uefi in bios but there's no uefi in my pc. i checked advanced startup then restarted into the boot menu, but there is no uefi firmware settings there.

also, what temps should i check when running realtemp and cpuz, do i need both of them??

thanks for the help. i'll do those later and post my findings.
 

lorenz_929

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ok i just started checking my pc temp. so far for 5mins its stable at around 30-36 celsius. i dont know what distance to TJ max is but its moving between 60s to 70s. right now all thermal status are ok.

what should i check in cpuz?? the only thing i noticed is that it can see all my installed rams, but whenever i check my pc properties it only says 8gb ram.

i'll continue to monitor these temp values, but if you can tell me what to look for that would be helpful. thank you.

edit: ok i just finished checking, my pc shut down again after 30mins. no changes in the temperature, theyre all ok. it stayed within the 30 degree celsius and the max was 52. checked cpuz and the core voltage was the only one changing, but it only stayed w/in the .8 range getting as high as .864 v. i dont know what to do here.
 


The 0.864V looks like it is too low for the i7 3770 CPU. By any chance do you have the "K" version of the i7 3770? You can verify this 'Right' clicking 'Computer' and selecting Properties. (there are other ways too).
 

lorenz_929

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its definitely just i7 3770, no K, so i dont know. if it really is the voltage, how did it get changed?? would this have caused the shutdowns??

the only thing i know i changed in my pc is my antivirus. since my kaspersky subscription ran out, i used a trial version of nod32. after a few days this shutdowns started.

i dont change any settings in the bios. also, how do i change it and what's the normal voltage?? or can i just reset it?? and how??
 

Regarding Anti Virus programs, I use Malwarebytes along with MSE. Malwarebytes has a free version which requires you to manually update it and then run scans manually. Even for the paid version the scans are done manually. I recommend Malwarebytes.

Now the CPU. Just ensure that the voltages in the EUFI are set to 'Auto' - this will take care of the necessary adjustments automatically.

Another possible cause is a poorly seated CPU/heatsink along with a poor heatsink. This combination could be possible causing temperature spike and creating problems that lead to shutdown. Are you using the stock Intel heatsink that came packaged with the CPU? The stock heatsink is not a high quality heatsink but will work for normal applications.
 

Rams Anirudh

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I don think an AV would cause improper shutdowns, it only crashes your computer totally :3
 

lorenz_929

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i dont know, i cant seem to access my uefi settings. its not in the options when i check the advanced startup.

and yes, the heatsink is the one from intel. you think 1yr of working might have damaged it?? even though realtemp sees a normal temp.

should i just bring this to a repairman?? i mean if its the heatsink its pretty easy to replace by myself. i just dont know if it really is just that. i can replace the parts myself, but i dont know which parts are damaged. ugh, how do i check these things.
 
[/quotemsg]i dont know, i cant seem to access my uefi settings. its not in the options when i check the advanced startup.

and yes, the heatsink is the one from intel. you think 1yr of working might have damaged it?? even though realtemp sees a normal temp.

should i just bring this to a repairman?? i mean if its the heatsink its pretty easy to replace by myself. i just dont know if it really is just that. i can replace the parts myself, but i dont know which parts are damaged. ugh, how do i check these things. [/quotemsg]

1. Do not take the computer to any repair shop. We will help you get going here!

2. As I mentioned earlier, the stock Intel heatsink will be ok for normal use. Leave it alone. However, you need to clean it along with the other parts inside your computer using a can of compressed air.

3. If you are unfamiliar with accessing EUFI, and when accessed you are unfamiliar with the settings, leave this alone. Incorrect settings in the EUFI will cause huge problems and sometimes destroy parts.

4. Since you say that the only thing you changed is installing the NOD32, I suggest that you uninstall this through the Control Panel. Then re-start the computer and download and install Malwarebytes. http://www.malwarebytes.org/

5. After downloading and installing Malwarebytes, run a complete scan on all the drives attached to the computer.

7. Now check the temps in RealTemp.

 

lorenz_929

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thanks, i'll try those later. i have class tonight so i cant do it right now.

i have always used ccleaner so ill just use it again. then remove my nod32. also, i already cleaned my heatsink w/ compressed air cause i first thought that was the problem, but it still shutsdown. i might clean it again tmrow just to make sure.

i'm busy on weekdays so i might take a while to respond. hope to fix this by weekend.