Weirdest computert issue ever experienced. Computers shuts down EXACTLY in 30 mins (on the second!)

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volatyle

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Jun 1, 2014
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Hey,

I've been using and working with computers since mid 90's, and I'm currently experiencing the weirdest issue ever. I know, that trouble shooting it further would require me to test another PSU (or even another mother board, most likely)

But I wanted to ask the community, if anyone has ever experienced how my system behaves;

So, lets dig in to details
A setup of a i5 4770k
Gigabyte G1.Sniper motherboard
Corsair 520HX PSU
GeForce 770
Corsair memory, etc.

Here's the tricky part... This computer worked flawless for some months, and then, it started shutting off - and i mean, shutting of like someone pulled the plug. No warnings, no nothing.

Okay, so booted up again, shuts down after around what i believe is 30 minutes. I turn it on again, and realize it took the same amount of time before it shuts off completely. So, i bring a timer and clock it. Guess what? It shuts down after *exactly* 30 minutes, on the SECOND. And it does this every single time, and it is not affected of how much i push it, the load, the number of programs - anything, it is always 30 minutes.

So, load it into BIOS, same thing there - 30 minutes then shuts off - so, we can exclude OS-issues... I've tried the paper-clip-test with my PSU, and it stays on for the whole night - however, that is without any load what so ever of course, since it is not connected to anything but a little fan.

Any ideas guys?
 
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makkem

makkem

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Jan 22, 2012
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Hi
Since it is shutting down after an exact period this makes a thermal problem less likely though not impossible.
Most BIOS under the power options menu have a setting to start the computer after a period of time or at a specific time,perhaps your BIOS has an option to shut down the computer after a period or the BIOS may be glitched and be doing this.
Either way it will be worth checking power options on your BIOS and possibly consider updating the BIOS.
The other option would be a mains power borne surge that is tripping the PSU,so it may be worth trying it in a different outlet or with a surge protector or UPS.
 
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mbarnes86

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Sep 16, 2010
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Hi

I would suspect a BIOS setting or corrupted cmos

re set cmos using jumper with power disconnected
if that fails remove cmos coin battery for a day.

I was asked to look at a laptop that shut down after about 4 minutes
it seemed to be counting down from 255 in seconds then shutting down

This was repeatable if doing several times in a row or if not used for a while so it was not overheating or fan failure.

I eventually had to dismantle to get access to motherboard, unsolder the cmos battery leave it for several hours, Resolder coin battery, reasemble case

It then worked ok

regards
Mike Barnes
 
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volatyle

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Jun 1, 2014
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I agree that the PSU is suspected to be failing... But, I am also curious how the PSU could "know" when 1800 seconds has passed. It is a bit of a mystery..

Oh, and we can close the theory of the PSU being to weak, computer has been running fine with maximum load for months, and now in idle it can suddenly turn off when 1800 seconds has passed - that makes no sense.

Besides, ive tried booting up the computer with anything but the motherboard and CPU-fan connected and it will still shut down after 1800 seconds. :)

Vol
 
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volatyle

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Jun 1, 2014
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Okay guys, here's a little interesting update;

Tried resetting cmos - no change.
So, i unmounted the PSU and mounted it in another computer - waited 1800 seconds, computer still on and no shut downs.

Okay, so - put back the PSU in the "failing computer". Took *everything out*, hard drive, geforce, fans, even the CPU-fan was removed from the motherboard, and then switched the computer on so the motherboard is lit and the PSU-fan is on, of course - it wont start up, but i left it on and waited.

Guess what - shuts completely off after 1800 seconds.

So, this means it is either the motherboard, or the CPU - right?
Or, it is the PSU combined with that motherboard - which makes no sense either... :/

This is so weird tho... What would make it wait 1800 seconds every time? I just cant understand it...

Im going to try to update BIOS, but then im really out of ideas.

Any ideas how I can really prove this is the motherboard and not the cpu - for example?



Vol
 
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chulakorn

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Jun 27, 2014
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Do you have any progress?

I have the same exactly 30 min shut down issue with Dell Inspirion 5521 i5 ULV 3rd Gen

I am pretty sure that it is not heat issue since I already send this laptop to clean and replace themal gel with Dell Authorized shop.

Moreover, my laptop start to have this problem just only 2 day after warranty expire.

Still no clue what cause exact 30 min shutdown
 
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Nilou

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Jul 27, 2014
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Hello, i have the exact same problem on my laptop, asus k56cm running a i7 cpu,
I tried flashing the bios and got an error, and the cputer was booting to bios only, i changed my ssd hard drive that was installed to put back the original drive and i could boot again to windows 8, the computer keeps crashing every thirty minutes.
I called asus support and the guy gave me like an automatic answer saying it was a hard drive problem... Doesnt sound right but then i realised there is a ssd boot drive on my motherboard and was thinking it might be it.
Hope someone will find a solution!
 
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dobbies

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Oct 17, 2013
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Hi Volatyle

I also posted this message to Auiki on this forum as I'm pretty desperate.

I wondered whether you ever found a solution to your 30 minute shutdown problem as it started doing it on my PC about a week ago even in BIOS mode. Exactly 30 minutes or 1800 seconds it dies.

Here is what I've done to try to resolve it, but without success:

Replaced the PSU.
Removed graphics card.
Removed and replaced individual 2x4GB ram sticks and also tried one stick at a time in alternate sockets.
Checked all core temperatures. (All normal)
Updated my ASUS H81i Plus motherboard BIOS to latest version No.2105

I'm sure this has to be an ASUS motherboard problem but it's getting their tech support to listen to what you have to say and that could umpteen emails and take weeks. I've looked at all the replies to your dilemma but no one seems to have the answer.

Any help would be appreciated.
 
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hezzie777

hezzie777

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Dec 18, 2014
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have the exactly the same problem on my desktop. I found the problem to be somewhat related to my BIOS. I have Gigabyte UD3H-Z87X motherboard which fortunately has a duel BIOS. I switched to my back BIOS and now my PC runs fine. It still bugs me though that if I go back to my first BIOS it will shut-down on the 30th minute mark and I have tried waiting on Windows, Linux and even in the BIOS its self. It will shut down on the 30th Minute. I flashed and updated my Bios but it didn't help, still got the problem. I'm just happy I got a backup but its still a bummer the first BIOS failed like that. Cant seem to find a solution
 
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JacekWarchol

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Jan 4, 2016
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Hi,
Same problem here, on my Lenovo U410 (i3),
I checked temperatures, updated all software drivers, checked poer management, updated bios - nothing helps :-(

A friend told me that this might be related to a dead cmos battery .... ?

Jack
 
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JacekWarchol

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Jan 4, 2016
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My computer turns off every 30 minutes – fixed.

Hi, my Lenovo u410 stared to shut down (blackout with no warning) every 30 minutes – it shut down no matter if running Windows, Bios or even in sleep mode! And precisely every 30 minutes.
I searched lots of forums, I reinstalled many programs, drivers, power managers, I disconnected RAM and CMOS battery – nothing helped.

I gave my computer for repairs and – they fixed this issue! The good news is that this is not some very expensive fix, the bad news is that it requires changing parts.

It turned out that it was heat related issue. I know - it’s strange that a heat related issue makes the computer to turn off precisely every 30 minutes, not randomly, but here’s the thing – there are some less important chips on the motherboard that also require cooling, the board checks their temperature every 30 minutes, if they are too hot (even if your compute seems to be cool running bios) – motherboard switches off, and since they work even when computer is sleeping – it will continue to switch off in every state. My computer stopped to shut down, when they replaced the board’s heat pipe that distributes heat between some areas of the board and the cooling fan, they said that the pipe has some special gas inside, and there must have been some micro crack, apparently its not there anymore and proper heating when the fan is off cannot be performed.

So guys…. Good luck with your machines, mine after changing this pipe if working super fine for over 2 weeks now.
Jack.
 
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