PC randomly shuts down

[Armede]

Hey guys. I just recently upgraded a LOT of components for my PC. My rig atm is the ASUS z87 Sabertooth MB, i5 4670k, Corsair Obsidian 750D case, Corsair 750W TX PSU, Corsair H110 Radiator (top mounted) , OCZ vertex 4 SSD, 8G's ram ( about 5-6 years old... 2g x 4 from my old build), and an Nvidia GTX 470 GPU.

The problem I'm having is that my machine will randomly shut down and restart without warning. I've checked my PSU with a volt meter and a PSU tester and everything looked good with nothing jumping around. I've also tried reinstalling different drivers with doing clean installs each time to make sure the old one was uninstalled.

I have checked my GPU and there was some black dust on the fan. I've checked my temps with afterburner and it would restart even though the temps were around 35 C .

I've also checked to make sure all the fans are spinning and working, as well as the radiator working. Any suggestions?

[Armede]

I'm also new to the forums. I love Linus's videos. Helped me out in buying a lot of new things for the new comp.

[mgsstar]

Welcome to the forum! I would try it without the gpu by using the integrated graphics on the cpu to see if it restarts. I would also use bluescreenview to see if any dumps were created when it restarted:http://www.nirsoft.net/utils/blue_screen_view.html

[Akolyte]

Welcome! I have some questions for you about this:

 

1. What are you temperatures at full load? 

 

2. Are any of your components overclocked?

 

3. Do you get a blue screen? 

 

4. Have you ran a Virus scan with Malwarebytes recently? 

[Armede]

Awesome guys.

My machine does not blue screen at all. It just shuts the machine down and then restarts itself.

At full load running Heaven the GPU temp goes up to around 70C . It won't always shut off during a full load and sometimes it would run Heaven twice without it restarting and then other times it would restart if I did anything that remotely used any kind of graphics power.

I have ran Mbam scans and it showed no issues at all.

None of my components are OC'd. Also I checked my PSU voltages just recently through the bios and the 12v and 5v rail would jump randomly between 12.120 to 12.100 as well as the 5v jumping from 5.238 to 5.230 (right around those) .

Also I don't have any VGA/hdmi/divi ports on the on board. There's a weird video plugin I've never seen before though.

I've also tested the monitors on different machines and they're both fine.

[mgsstar]

Awesome guys.

My machine does not blue screen at all. It just shuts the machine down and then restarts itself.

At full load running Heaven the GPU temp goes up to around 70C . It won't always shut off during a full load and sometimes it would run Heaven twice without it restarting and then other times it would restart if I did anything that remotely used any kind of graphics power.

I have ran Mbam scans and it showed no issues at all.

None of my components are OC'd. Also I checked my PSU voltages just recently through the bios and the 12v and 5v rail would jump randomly between 12.120 to 12.100 as well as the 5v jumping from 5.238 to 5.230 (right around those) .

Also I don't have any VGA/hdmi/divi ports on the on board. There's a weird video plugin I've never seen before though.

I've also tested the monitors on different machines and they're both fine.

The video plug is DisplayPort. I would install AI Suite 3 to check on your CPU temps. I would try a different power supply if you have one and check that the capacitors on the motherboard are not faulty because had this problem before and I think it was the capacitors before it failed to boot completely. I would still run bluescreenview to see if you have dumps. Do you have your standoffs installed?

[Armede]

Yeah as far as it physically put together all of that is done right. It'll work fine in the OS for a random amount of time and randomly shut off. Just a weird problem I've never seen before. I'm leaning towards a bad GPU but I have not tried it with another PSU yet.

[Armede]

Checked my CPU temp through he UEFI bios and they were all normal and running very cool.

I also have seen the machine cut off during safe mode. It seems like it shuts off quicker after the first time as well which is why I'm leaning towards the GPU overheating somehow or something wrong with it internally.

I have not tried another PSU yet but probably will soon just to be sure.

[Armede]

Also it does the same exact thing in the OS with the same exact video card.

[brob]

Don't rule out the OCZ SSD.

[Armede]

Yeah I haven't checked the SMART on the SSD. But when it's in the OS it flysm. Haven't seen any types of OS related problems with the SSD yet.

[netknowhow]

shutting off randomly to me could only be a few things 1 psu 2.motherboard 3. overheating to rule out overheating as i doubt its the video card overheating go into the bios and enable cpu temperature warning so that way if the machine does shut down due to temperature it will tell you so at next boot, also make sure that the cpu shutdown temperature is not set too low i know a lot of motherboards allow users to set a shutdown temp manually yours may be set to low so it shuts off even if its running cool, also is there anything in particuler happening when it shuts down i.e does it happen while your using it or has it happend even when its running idle and your not using it.

[Armede]

It's happened in both instances. I've also had it on and in the bios for about 2 hours now and it hasn't shut off yet. It's reading my MB temp at 36C and my CPU temp going from between 27-30C . The PSU readings will jump from 3.344 - 3.328v , 5.120 - 5.080v , and 12.192 - 12.096. Sometimes all at once or by themselves. The times they jump are random and they don't constantly jump around.

Like I said it's been on in the bios for almost 2 hours now. It won't last near that long in the OS now. MAYBE for 15 minutes and that's when I do anything on the machine in the OS now.

[mgsstar]

It's happened in both instances. I've also had it on and in the bios for about 2 hours now and it hasn't shut off yet. It's reading my MB temp at 36C and my CPU temp going from between 27-30C . The PSU readings will jump from 3.344 - 3.328v , 5.120 - 5.080v , and 12.192 - 12.096. Sometimes all at once or by themselves. The times they jump are random and they don't constantly jump around.

Like I said it's been on in the bios for almost 2 hours now. It won't last near that long in the OS now. MAYBE for 15 minutes and that's when I do anything on the machine in the OS now.

The voltages are fine. I would try reseating your gpu but don't really see how this might fix but worth a try and check your power connections (make sure you have that 8 pin connector connected)

[Armede]

The GTX 470 has 2 6-pin connectors instead of 8-pins. I haven't checked the connections individually though with a volt meter. My new ASUS 660 gets in sometime this week. I'll keep y'all updated if it fixes the problem. The Sabertooth board doesn't have any on-board video so kinda tough to test.

[Armede]

I'm also gonna reinstall the OS to make sure all the old drivers are off.

[mgsstar]

The GTX 470 has 2 6-pin connectors instead of 8-pins. I haven't checked the connections individually though with a volt meter. My new ASUS 660 gets in sometime this week. I'll keep y'all updated if it fixes the problem. The Sabertooth board doesn't have any on-board video so kinda tough to test.

Yea it does you just need to get a displayport/hdmi cable and get an adapter if your monitor doesn't support it.

[Armede]

What should I look for? I have a DVI and mini HDMI monitor. Just never gotten/seen the kind of plug in that's on the board before.

[mgsstar]

What should I look for? I have a DVI and mini HDMI monitor. Just never gotten/seen the kind of plug in that's on the board before.

hdmi male to mini hdmi female adapter (so you can plug in your mini hdmi cable to the motherboard) or hdmi male to DVI female adapter.

[Armede]

Thanks so much man.

[Armede]

Well got the new card in and it did the same thing. This time the machine restarted when it was in the bios. It booted and worked fine in the OS for about 10 minutes. I restarted into the bios then it restarted then as well. I'm hoping it's a PSU issue and not a board/processor problem. Any thoughts? Just never seen a machine do this so inconsistently is all.

[mgsstar]

Well got the new card in and it did the same thing. This time the machine restarted when it was in the bios. It booted and worked fine in the OS for about 10 minutes. I restarted into the bios then it restarted then as well. I'm hoping it's a PSU issue and not a board/processor problem. Any thoughts? Just never seen a machine do this so inconsistently is all.

Try an out of the box test by running it like a test bench by running the build on the motherboard box to see if anything is causing it to short and reboot randomly. Check the back of the motherboard to make sure that nothing is touching the back of the board.

[Armede]

I'm gonna try a lot of stuff tomorrow. When I first got the new stuff I checked everything before I put it in the case. It worked perfectly for about 3 weeks then it started doing this.

[Enstage]

This used to happen to me then one day it randomly stopped so...

[Armede]

Nice man.