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Computer stops responding and turns itself off

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September 13, 2013 12:43:55 PM

I'm having a major problem with my computer and I need some help. Sorry If I posted in the wrong place.

I built my first computer last June and it was working fine until last week when, out of nowhere, it stops responding. I was watching a youtube video at the time, and first the video and audio started to become choppy, followed by the whole system freezing. It would stay like that for a few minutes, then shut off. No blue screen. This happens every time I turn on the system.

That was a week ago, and it's gotten a lot worse since then. It used to happen a few minutes after startup. Now I can barely get past the bios screen before it freezes.

So far, all I've been able to do is re-seat the ram, and replace the PSU, which was suggested by people at Microcenter. Neither worked.

Here are my specs:
Asrock H77M
Intel i5 3470
Sapphire 7850 1gb OC
Windows 8 OEM 64-bit
WD Black 1tb
Team Xtreme Dark Series 8 gb 2x4gb
Old PSU: Corsair CX500M
New PSU: EVGA Supernova NEX750B

What do you think it might be?

-Mike
September 13, 2013 12:49:18 PM

What are your temps? If you're using the stock cooler, is it still securely mounted to the board, or have one or more of its pins popped loose?
September 13, 2013 12:55:27 PM

Onus said:
What are your temps? If you're using the stock cooler, is it still securely mounted to the board, or have one or more of its pins popped loose?


I'm using the COOLER MASTER Hyper 212 Plus. Are you suggesting it is a overheated CPU? Because I was thinking about swapping out the CPU fan. But do you think a minute or too is enough for it to overheat?

edit:
Also, the system won't stay on long enough for me to check temps.
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September 13, 2013 12:56:06 PM

look temp issue , try to do a cleanup with air , like told above check your cpu cooling system

and check the pc case ventilation too
September 13, 2013 12:59:22 PM

Ok, i'll try it out and report back. (might not be able to today though)
September 13, 2013 1:02:16 PM

Are you overclocking? Reset your BIOS to defaults, to make sure an excessive overvoltage isn't being applied. The Hyper212+ is better than the stock cooler, and screws down, so it should not have loosened. You may wish to remove it, clean off the old paste, then re-apply thermal paste. Use 91% isopropyl alcohol for the clean-off, and something like Arctic Silver AS-5 for the new paste.
September 14, 2013 2:28:17 PM

I removed the Hyper212+ and cleaned the CPU with the isopropyl alcohol. I installed the stock cooler (I could change it back later), and the problem is still happening. This time I got a message, which I took a picture of...



After that, it sent me to a page to recover windows, but it froze and shut off before I could do anything. I guess this means all this rebooting has hurt my PC.

I'm starting to fear that it is a problem with my cpu or mobo. If so it will take a while for me to be able to afford replacements.

I'm not overclocking btw. When you say resetting the BIOS, you mean clearing the CMOS right?
September 14, 2013 2:36:28 PM

''I removed the Hyper212+ and cleaned the CPU with the isopropyl alcohol. I installed the stock cooler (I could change it back later), and the problem is still happening. This time I got a message, which I took a picture of...''

dont put stock cooler....
do you put new heatsink paste on your cpu?
can you press the DEL button on splash screen ... and do have acces to bios screen after pressing DEL button???

September 14, 2013 2:47:05 PM

badboyrog said:
''I removed the Hyper212+ and cleaned the CPU with the isopropyl alcohol. I installed the stock cooler (I could change it back later), and the problem is still happening. This time I got a message, which I took a picture of...''

dont put stock cooler....
do you put new heatsink paste on your cpu?
can you press the DEL button on splash screen ... and do have acces to bios screen after pressing DEL button???



The stock cooler had paste pre-applied. I plan on re-installing the Hyper212+ eventually, I just thought it would be better to test it with a different one.

I can get into the bios, but not for very long before it freezes.
September 14, 2013 2:53:22 PM

can you have acces to some pc parts from a friend???
September 14, 2013 3:01:55 PM

No, but I guess I can buy and return
September 14, 2013 3:10:11 PM

ok at least the bios detect your hdd.... memory... and cpu
but to freeze like that!...???
the psu is good.. well
look like is the gpu or mobo
September 14, 2013 3:17:03 PM

badboyrog said:
ok at least the bios detect your hdd.... memory... and cpu
but to freeze like that!...???
the psu is good.. well
look like is the gpu or mobo


That's what it's starting to look like to me.

Do you mean gpu or cpu?
September 14, 2013 3:21:45 PM

i mean your graphic card or the motherboard
September 14, 2013 4:40:36 PM

If you remove the graphics card and use the IGP, what happens?
September 19, 2013 5:42:13 AM

Sorry I didn't reply. I haven't had time to work on this until now.

Ok, so I removed the GPU and my computer actually started working fine. I thought the problem was over until after about 30 minutes when the computer just froze. It didn't turn off though. I had to force close it.

To me this suggests the motherboard. Do you have any other ideas?
September 19, 2013 7:50:18 AM

Test your RAM, one stick at a time.
September 19, 2013 11:40:11 AM

Did you use a conductive thermal paste on anything? Are all of the temperates good? Monitor every temperature sensor you can with speedfan and keep an eye on it when you use the computer. Double-check that every driver is up to date. On-board video, chipset, network, audio, etc. Run a chkdsk on your HDD (the long kind where it checks every sector, sorry)!

It is possible that it is a software issue. In this kind of scenario I usually start from square one, which means disassembling and reassembling everything and reinstalling windows, but I'm not sure how much you care about what's on your computer. Let me know if you are OK with giving it a shot and I will provide troubleshooting and diagnostic tips. I won't lie, I have never encountered a problem like this. In my experience hardware problems tend to be pretty obvious. The fact that it is hanging and not actually shutting off or throwing a blue screen is very strange indeed.

If your CPU or motherboard was bad, I don't think you'd be able to get into the UEFI.
September 20, 2013 1:42:03 PM

Temps seem fine. They don't go past 36c, and I don't see a spike right before it freezes. That's with stock cooler.

I'd like to try reinstalling windows. But chances are it will shut off before I get the chance. How would I do that, just run off the windows cd. If I reinstall windows, I don't have to buy another oem activation code right?



md1032 said:
Did you use a conductive thermal paste on anything? Are all of the temperates good? Monitor every temperature sensor you can with speedfan and keep an eye on it when you use the computer. Double-check that every driver is up to date. On-board video, chipset, network, audio, etc. Run a chkdsk on your HDD (the long kind where it checks every sector, sorry)!

It is possible that it is a software issue. In this kind of scenario I usually start from square one, which means disassembling and reassembling everything and reinstalling windows, but I'm not sure how much you care about what's on your computer. Let me know if you are OK with giving it a shot and I will provide troubleshooting and diagnostic tips. I won't lie, I have never encountered a problem like this. In my experience hardware problems tend to be pretty obvious. The fact that it is hanging and not actually shutting off or throwing a blue screen is very strange indeed.

If your CPU or motherboard was bad, I don't think you'd be able to get into the UEFI.


September 20, 2013 1:49:16 PM

You should be able to reinstall Windows to the same motherboard as many times as you like.
September 20, 2013 1:51:28 PM

wait before reinstalling windows!!!
do you check if you have a virus problem?
did you check for a burning spot on your motherboard?
can you try to reseating every hardware?
did you try to use only one memory stick?
September 20, 2013 2:46:57 PM

I just ran my system with the bare essentials... Mobo, cpu w/fan, one memory stick, psu. So no hdd, gpu, dvd. I tried it twice with one memory stick at a time. both times the system turned on into the bios and froze soon after.
September 20, 2013 3:02:13 PM

mobo problem...
September 20, 2013 5:54:15 PM

I was afraid of that.

How do I go about swapping a mobo? I have no problem with the installation, but how do I get windows working? I know I probably have to buy the oem activation again. Do I lose any data or programs (like photoshop) from my hdd.
September 20, 2013 6:22:27 PM

You will need to re-install all your programs. I would get an additional hard drive, install to that one, then put the original drive in as a secondary data drive.
September 22, 2013 12:37:46 PM

I just wanted to thank you all for helping me out with this. I went out and bought a new mobo, the p8 h77m, and my computer runs like it's brand new. I'm on it right now.

I couldn't afford a new hard drive so I had to reformat my c: drive. Thankfully my other two partitions were untouched, so I actually kept all the stuff I was afraid of losing.

And supposedly I can reuse my windows activation key if I explain my situation to tech support.

Thanks again for your help. I'll be back again when my new mobo craps out.
September 25, 2013 12:00:43 PM

All right!
!