Turn on -> Shut off randomly -> Just fans spin

irishguy42

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Mar 13, 2014
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Hello!

So, my computer has been running pretty great for a month. Everything runs smoothly, and I am having a blast.

Yesterday, I get home from work and go to turn it on, so I can relax and play some games before the GF comes home. The computer doesn't start. Odd. I try again and it does, but it then shuts down after 5 seconds. Odder. I keep trying and I get various amounts of up time (with no video) and the PSU clicking. Really odd.

I then shut off the PSU and fiddle about with the power cable seating and try again. This time, I get to BIOS, but it doesn't recognize the HDD, which I have my OS installed on. Okay, change the boot to the Windows Boot Manager. Boots up fine. I log Windows and go about my business. Shuts down on me. I then spend the next few minutes trying to reboot the machine and having it shut down on me (no blue screen or anything, just the machine turns off) when I'm browsing, in BIOS, playing a game, etc.

And now, I am at the point where I hit the power button and the case fans and CPU fan start up and then shut down. All within .5 seconds. The GPU fans don't come on, at least as far as I can tell. Didn't check if the HDD started spinning or not.

In case you were wondering about the PSU fans, the RM550 fan doesn't spin until 40% load (I think).

I was looking around here and found some helpful guides to try after work today.

* Basic Guide

* Breadboarding

* Troubleshooting further

Are these pretty good to follow and give me an pretty accurate picture of the problem? I think it might be a heating issue. The odd thing is that the computer was working perfectly fine up until when I tried to turn it on yesterday. No slight increase in system temperature at all over the past month. The only change in ambient temperature is it getting warmer because of spring. I also opened up my case and didn't feel too much overtly odd heating, just the PSU being slightly warm and the GPU back a bit warmer to the touch. No random heat from the CPU area.

I'm fairly certain it isn't because I have the incorrect wattage PSU, as a RM550 should be fine for the majority of non-OC, non-SLI/Xfire builds. Since I am outside of the 30-day return period for Amazon/Newegg (of course I would have problems two days after it expirese :p), I will have to deal with the manufacturers directly (oh dear lord that will be interesting...).

In case you didn't click on the link above of my build:

* Intel i5-4570

* Biostar Hi-Fi B85S3+ Ver. 6.x

* Crucial Ballistix Sport XT 8GB (2 x 4GB) DDR3-1600

* Western Digital Caviar Blue 1TB 3.5" 7200RPM (OS: Windows 8.1 Pro N)

* MSI GeForce GTX 760 2GB

* Cooler Master N200 mATX case

* Corsair RM 550W 80+ Gold PSU

* Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer

* TP-Link TL-WDN4800 802.11a/b/g/n Wi-Fi Adapter

* Rosewill RC-501 (2+1 Port Firewire/1394a)

Thoughts?

I posted over on /r/buildapc, and they suggest to take the GPU out and try onboard graphics. If that doesn't work, I assume a bad M/B and nothing wrong with the PSU/GPU? If it does work, bad GPU? How would I check if the PSU is delivering enough power or if the M/B is routing power correctly?

Should I buy an aftermarket cooler/more case fans? I would have to put the extra case fans into the PSU for power, which means 100% on, but I don't think I need them.

Thank you so much! I can survive on my laptop for a week or two if needed.
 
Solution
If you have the Mb speaker like http://cdn.overclock.net/b/ba/ba4225be_speaker.jpeg and it will make you easy.

Those three guides are very good, first try to clear the CMOS by removing the battery, then reboot the PC. If it does not work, then like other people say, using the onboard intel HD4600, you can go to the BIOS to set the setting but I don't you can boot into the BIOS or not after clearing the CMOS. Also you can use the paper clip method to test the PSU.
And usually we will follow the step by step for troubleshooting. Like
1) take off anything except cpu, boot the PC, if you have the speaker, then you should get the error beep code like no RAM, or no GPU if you disable the onbaord intel HD4600...

hans_pcguy

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Nov 13, 2010
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This can be caused by many things. You will have to find out which component is faulty by the process of elimination. Start by disconnecting all the stuff you don't need to run the PC. Add things until you find the problem. If you have onboard video take the video card out also. So start with the computer running without sound card, DVD, any other add on cards etc. You should also check the power supply. You can do this by CAREFULLY testing the 12 volt and 5 volt rails with the PC running with a multimeter. Red wire is 5 volt, orange or yellow is 12 volt. I recently fixed a computer that was overvolting the 12 volt rail to 18 volts. It wouldn't run but amazingly when I replaced the psu there was no damage to components.
 

irishguy42

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Mar 13, 2014
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Hehehehe I will definitely have to look at the specs for the PSU. The cables aren't color coded, and look like this.

Looking at my build, it looks like the only things I would need to yank out are the ODD, GPU, the FW card, and the wireless card?

I guess now might be a good time to buy myself a multimeter as well.
 
If you have the Mb speaker like http://cdn.overclock.net/b/ba/ba4225be_speaker.jpeg and it will make you easy.

Those three guides are very good, first try to clear the CMOS by removing the battery, then reboot the PC. If it does not work, then like other people say, using the onboard intel HD4600, you can go to the BIOS to set the setting but I don't you can boot into the BIOS or not after clearing the CMOS. Also you can use the paper clip method to test the PSU.
And usually we will follow the step by step for troubleshooting. Like
1) take off anything except cpu, boot the PC, if you have the speaker, then you should get the error beep code like no RAM, or no GPU if you disable the onbaord intel HD4600. http://www.computerhope.com/beep.htm
2) add RAM, boot the PC.
3) add the GPU
4) add the HDD, DVD, etc.
If it does not work then do the breadboard.
 
Solution

irishguy42

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Mar 13, 2014
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cin19 has the best solution.

However, I did what hans_pcguy said (unplugged the non-essentials and check seating of the rest of the cables/parts) and it worked. And then I put the parts back in. And it's still working. In fact, I played a game for several hours without issues popping up. So I am not really sure what the problem was aside from me removing parts, putting them back in, and checking all the cables.

Oh well. It works for now. But I will keep these guides in mind when my next problem crops up.
 

hans_pcguy

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Nov 13, 2010
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Re-seating the parts often solves the problem. If you did what I suggested, and it worked. I must have had a good answer.
From now on I am just going to refer people to other articles and get best answer rating.