Random system shut down

[Randomnugget]

So i just built my friend a pc, it worked great and now for the last 5 days its been shutting down at random times usually between 1-4 hours and them it proceeds to turn back on immediately after it shuts down, i dont know what to do anymore i replaced the psu replaced cpu thermal paste replaced thermal paste on the chipset. the last think i can possibly think of is the gpu and i do have the gpu overclocked, the cpu was overclocked but i reset the bios thinking it was the cpu oc and it wasnt so like i said, the only thing i can really think of is the gpu being oc'd.
Specs:
Gigabyte HD-3 z87
I5 4670k
16gb teamgroup 1600mhz ram
Evga 500watt psu
Gtx 960

Edit: it wasnt the gpu im at a total loss now i have no idea what it could be at this point.

 

[RJARRRPCGP]

Sounds like a poor connection somewhere. The suspects of course, would be the ATX 24-pin connector and the 8-pin EPS CPU connector.

 

[Randomnugget]

Sounds like a poor connection somewhere. The suspects of course, would be the ATX 24-pin connector and the 8-pin EPS CPU connector.

yeah i made sure i pushed down on it when i put the psu in the 2nd time and rechecked everything so i doubt it unless some how the connecter its self is bad. but since i put the new psu in i have noticed it hasnt shut off every hour its more like every 4 hours now. the only thing i can think of is to d a complete bios reset and use the bios jumper witch i didn't do before but i doubt it will do any thing now.

Sounds like a poor connection somewhere. The suspects of course, would be the ATX 24-pin connector and the 8-pin EPS CPU connector.

it might be the cpu power connecter because it was a bitch trying to get in so it might be that.

Sounds like a poor connection somewhere. The suspects of course, would be the ATX 24-pin connector and the 8-pin EPS CPU connector.

also, do you know if a really degraded CPU could cause this problem as well?

 

[Butanding1987]

Check for WHEA errors to know if the CPU is causing the reboot. It could also be a rogue Windows app. In my case, it was Qbittorrent. Download WhoCrashed.

 

[Randomnugget]

Check for WHEA errors to know if the CPU is causing the reboot. It could also be a rogue Windows app. In my case, it was Qbittorrent. Download WhoCrashed.

will do, my friend is bringing it over to my house so i will be able to look at it closer then. but i will check this out.

Check for WHEA errors to know if the CPU is causing the reboot. It could also be a rogue Windows app. In my case, it was Qbittorrent. Download WhoCrashed.

also i have my doubts about it being a WHEA error because when it shuts down it isnt a blue screen of death but rather a hard shutdown as if someone pulled the power cable out of the wall or pushed the reset button.

 

[basco]

so you testet everything except ram? is it at 1600mhz if yes try it downclocked to 1333 mhz.
is it 2x8gb or 4x4gb
how old is the power supply?

 

[Randomnugget]

so you testet everything except ram? is it at 1600mhz if yes try it downclocked to 1333 mhz.
is it 2x8gb or 4x4gb
how old is the power supply?

yeah i didn't test ram because i didn't seem like a ram issue is just random shut downs it could be ram but there's no beep code or anything it just boots back into the os like nothing happened, also the psu is about 1 day old now i just put a new one in his pc and it still has random shutdowns, i thought it could have been the vrm but the vrm says its fine and when i used a lazer temp gun on them it said they were about 50-60c (on the vrm heatsink and the chokes themselves) (also I'm 85% sure the thermal limit for the vrm is 90c) . so that's why im so confused because it acts like its either an electrical issue or a thermal issue but everything thermally and electrically seems to be fine.

 

[basco]

but when ya say it happens between 1-4 hours its a little random for me so if ya testet everything else .
do ya know how the ram runs at 1600mhz try downclocking even to 1066 mhz.
what sometimes is forgotten-today 8gb sticks are normal or even small but back in z87 days 4gb was normal and 8gb was big stuff so the combatibility sometimes is off.
i cost not much time to test memtest
i use the usb installer:

Memtest86+ | The Open-Source Memory Testing Tool

Memtest86+ is an advanced, free, open-source, stand-alone memory tester for 32- and 64-bit computers (UEFI & BIOS supported)

www.memtest.org

 

[Randomnugget]

but when ya say it happens between 1-4 hours its a little random for me so if ya testet everything else .
do ya know how the ram runs at 1600mhz try downclocking even to 1066 mhz.
what sometimes is forgotten-today 8gb sticks are normal or even small but back in z87 days 4gb was normal and 8gb was big stuff so the combatibility sometimes is off.
i cost not much time to test memtest
i use the usb installer:

Memtest86+ | The Open-Source Memory Testing Tool

Memtest86+ is an advanced, free, open-source, stand-alone memory tester for 32- and 64-bit computers (UEFI & BIOS supported)

www.memtest.org

ok i will try that out and if it and nothing else anyone has state ill probably try putting a different cpu in it, as well it has an older bios on it (F7) and in 2014 it seems they updated it to F8 witch "Enhanced Intel K-sku CPU performance" whatever thats supposed to mean, im kind of wondering if its the bios? but i have a big doubt about it plus idk if it would be worth updating seeing how risky it is and it could brick the mother board.

but when ya say it happens between 1-4 hours its a little random for me so if ya testet everything else .
do ya know how the ram runs at 1600mhz try downclocking even to 1066 mhz.
what sometimes is forgotten-today 8gb sticks are normal or even small but back in z87 days 4gb was normal and 8gb was big stuff so the combatibility sometimes is off.
i cost not much time to test memtest
i use the usb installer:

Memtest86+ | The Open-Source Memory Testing Tool

Memtest86+ is an advanced, free, open-source, stand-alone memory tester for 32- and 64-bit computers (UEFI & BIOS supported)

www.memtest.org

also could you explain to me or send a tutorial of how the mem tool works. thanks.

 

[Butanding1987]

will do, my friend is bringing it over to my house so i will be able to look at it closer then. but i will check this out.


also i have my doubts about it being a WHEA error because when it shuts down it isnt a blue screen of death but rather a hard shutdown as if someone pulled the power cable out of the wall or pushed the reset button.

WHEA errors can also cause a sudden reboot especially if the overclocked CPU is very unstable. It doesn't always have to be a BSOD. Also, what are you doing with a laser temp gun? Use proper monitoring software like HWINFO.

 

[Randomnugget]

WHEA errors can also cause a sudden reboot especially if the overclocked CPU is very unstable. It doesn't always have to be a BSOD.

OH my bad, also the cpu has be rest back to its normal clock speed so i dont think the oc is an issue anymore. it could be a windows problem but i had reinstalled windows on it before because it was acting very weird and was also turning off and being very slow after entering windows. im going to use the WhoCrashed to see if anything weird is happening.

 

[basco]

usb stick and take the usb auto installer from the link above.

 

[Randomnugget]

usb stick and take the usb auto installer from the link above.

Oh like how you install windows or linux?

 

[basco]

yeah its a exe which you just point to the usb stick.
and then after reboot your system start from usb stick and it should start the programm automatic

try it and if ya have probs we are here to help

 

[Randomnugget]

yeah its a exe which you just point to the usb stick.
and then after reboot your system start from usb stick and it should start the programm automatic

try it and if ya have probs we are here to help

ok, thank you.

 

[Randomnugget]

yeah its a exe which you just point to the usb stick.
and then after reboot your system start from usb stick and it should start the programm automatic

try it and if ya have probs we are here to help

Yeah so it crashed mid way throught the test and turned on and off several times

Sounds like a poor connection somewhere. The suspects of course, would be the ATX 24-pin connector and the 8-pin EPS CPU connector.

It wasn't the atx or cpu connecter it randomly shut off through a mem test and after that it continued to turn on and off and finally turned on q minute later and after about 2 min it shut off and continued to then turn back on

yeah its a exe which you just point to the usb stick.
and then after reboot your system start from usb stick and it should start the programm automatic

try it and if ya have probs we are here to help

You might be right about the ram i took one ram stick out and tested the other and it instantly crashed withing less than 30 seconds of the crash while the other stick has been going for around 44min now

 

[basco]

i would check every stick solo.
do ya know in which test it failed-normally its test 5-should be the hardest-if yes then ya can jump to test 5 directly.

sorry overread the crashed after 30 sec. then no need for test 5 for this stick anymore.

 

[Randomnugget]

i know its time consuming but i would check every stick solo.
do ya know in which test it failed-normally its test 5-should be the hardest-if yes then ya can jump to test 5 directly and loop it 3 to 5 times

It crashed on both 1 lasted tell test 7 but there were still shut downs, i put some other ddr3 i had into it and it did the same thing. I took out the motherboard and as a hail marry took off the VRM heatsink being careful not to break the thermal stuff but there was dust all under it so i cleaned it off and unplugged one of the fanns since it seemed to not really be spinning like the others amd it hasnt shut of yet right now im on test 10

 

[basco]

if you are at it clean out the ram sockets and if possible the rest as best as ya can.
look at the golden contacts of the ram -can clean this too.
i use Q tip with isopropanol over 90% which ya should get at every drug store or pharmacy

i am still not sure if the ram is faulty or the mainboard is very picky about which ram it likes

the bios on the motherboard is newest?

 

[Randomnugget]

if you are at it clean out the ram sockets and if possible the rest as best as ya can.
look at the golden contacts of the ram -can clean this too.
i use Q tip with isopropanol over 90% which ya should get at every drug store or pharmacy

i am still not sure if the ram is faulty or the mainboard is very picky about which ram it likes

the bios on the motherboard is newest?

Yeah right now im using A-DATA 1600mhz, idk this thing is so confusing hopefully it doesnt shut down. Also long can the test go for?

 

[basco]

you can loop it or just use one specific test but normally i think it goes trough 10 tests and then stops.
if the test runs trough i would use something like games or what ya did during your crashes

and the more ram ya have the tests takes little longer-so 1x2gb takes 5 min then 16gb would take 10 min just as an example

 

[Randomnugget]

you can loop it or just use one specific test but normally i think it goes trough 10 tests and then stops.
if the test runs trough i would use something like games or what ya did during your crashes

and the more ram ya have the tests takes little longer-so 1x2gb takes 5 min then 16gb would take 10 min just as an example

Ok. Ill let it finnish then stay up for a bit gaming on it and see if it crahses

 

[basco]

how big are the adata sticks? i mean in GB

 

[Randomnugget]

how big are the adata sticks? i mean in GB

4gb each its 2x4

how big are the adata sticks? i mean in GB

By the way it just shut off , i dont really know what else to do at this point except try a new motherboard.

 

[Final_Fighter]

sounds like a bad power supply. put a psu that you know is good in it and see what it does.