PC shuts down randomly help!

[Raihan]

So recently my computer randomly shuts off, its normally random and I dont understand why it does that. When I turned the computer on there was a message about something to do with overclocking which made sense as i had recently overclocked my GPU. I have a EVGA GTX 780 Classified dual bios so i changed the bios of my GPU hoping it stops but no it carrys on. I then went on EVGA precision x (program i used to OC) to put the voltage down. The problem still happens and again its at random moments for example i can be playing Project cars and the PC starts to get a little hot and suddenly it turns off sometimes even having the PC idle on the desktop causes it to turn off. I know my PC isnt overheating as my idle temp of my GPU is 35degrees and my processor is watercooled and is around 25degress. I also have a "future proof" PSU (Corsiar CS750 750w) so that shouldnt be a problem. Anyway i have no idea whats wrong with my computer after it turns off it doesnt even show and error message anymore (After i took the OC off). I have also recently reinstalled windows. anyway this is a little long but i wanted to add all the information i can about the problem. Hopefully I can fix it as i cannot even game on it at the moment.

[Samadhi]

Its possible that your PSU has died. I would swap it out for another one and see if the problem re occurs.

[Raihan]

Originally posted by Samaister:

Its possible that your PSU has died. I would swap it out for another one and see if the problem re occurs.

I doubt it has died as the PSU is still new but it could be a PSU problem. Is there anyway i can check if my PSU is the problem? like seeing if its giving out enough power etc?

[Squirrell]

It sounds like an OC issue. Check that the OC program hasn't been set to OC the gpu on reboot. Reset the mobo bios to default (F5 on my mobo).

When overclocking take care if you increase voltages. The usual method is to increase the frequency settings and leave voltages alone. Voltage increases can stuff up the VRM's.

PSU's can cause shutdowns, but this is usually on older low quality bronze psu's. The wattage has notihing to do with quality. If the shutdown happens 1 minute after an event (e.g. pc startup, game starting, gpu load increasing) this is the psu's inbuilt safety switch kicking in.

[Raihan]

Originally posted by Squirrell:

It sounds like an OC issue. Check that the OC program hasn't been set to OC the gpu on reboot. Reset the mobo bios to default (F5 on my mobo).

When overclocking take care if you increase voltages. The usual method is to increase the frequency settings and leave voltages alone. Voltage increases can stuff up the VRM's.

PSU's can cause shutdowns, but this is usually on older low quality bronze psu's. The wattage has notihing to do with quality. If the shutdown happens 1 minute after an event (e.g. pc startup, game starting, gpu load increasing) this is the psu's inbuilt safety switch kicking in.

ive Put back everything to the default settings so nothing is overclocked right now, i have also done put everything back to diffauly settings on my mobo bios and as of right now it seems okay.
Anyway i had a message come a few days ago that had something to do with powersurge im not sure what that means do you have any idea?

[_I_]

specs?

post a cpuz validation link
http://www.cpuid.com/softwares/cpu-z.html
cpuz -> validate button -> submit button
it will open a browser, copy the url (address) and paste it here

and psu brand/model


and temps?

check temps while gaming
use hwmonitor, it logs min/max temps
http://www.cpuid.com/softwares/hwmonitor.html
alt+tab takes long enough for the cpu/gpu to drop 20+c


and is anything overclocked?

[Raihan]

Originally posted by _I_:

specs?

post a cpuz validation link
http://www.cpuid.com/softwares/cpu-z.html
cpuz -> validate button -> submit button
it will open a browser, copy the url (address) and paste it here

and psu brand/model


and temps?

check temps while gaming
use hwmonitor, it logs min/max temps
http://www.cpuid.com/softwares/hwmonitor.html
alt+tab takes long enough for the cpu/gpu to drop 20+c


and is anything overclocked?

The CPU cannot be overclocked and the GPU was overclocked but i changed it back to its diffult settings.

Here is my specs: http://valid.x86.fr/l8ibi3

Depends on the game i play obvisously i have diffrent temps but i can tell you the GPU and CPU is not over heating. For example playing Project Cars the GPU is around 50-70 degrees Depending on what track i race on and CPU is around 50-60 degrees.

The Powersupply i have is a 750watt corsair CX750M

[_I_]

id uninstall the gpu dirvers, then with ddu, then reinstall them and tick custom clean install box

should remvoe any gpu oc leftovers

if its still crashing it may have done something to the gpu
if the 780 is under warranty rma it

but with the 7xx card stick to older drivers
355-359 iirc
get it here
http://www.nvidia.com/Download/Find.aspx?lang=en-us

[rotNdude]

If your computer is just shutting down, it's probably the PSU. Call Corsair if the PSU is new.

[Samadhi]

Originally posted by rotNdude:

If your computer is just shutting down, it's probably the PSU. Call Corsair if the PSU is new.

You can lead a horse to water.........

[Samadhi]

Originally posted by You Got Bread?:

Originally posted by Samaister:

Its possible that your PSU has died. I would swap it out for another one and see if the problem re occurs.

I doubt it has died as the PSU is still new but it could be a PSU problem. Is there anyway i can check if my PSU is the problem? like seeing if its giving out enough power etc?

I had an EVGA 850 die less than 6 months from new. It happens and thats what warranty is for.

[_I_]

thats under a 500w build, the cx750 should be ok with it

[Samadhi]

Originally posted by _I_:

thats under a 500w build, the cx750 should be ok with it

Its not about the PSU being underpowered, its just that PSUs die and often.
In 99% of cases where the PC shuts down unexpectedly and/or frequently at random, the PSU is to blame.
I see it at least once a week through work.
It doesn't matter how new the PSU is, it happens.
Anecdotally may i say that it is extremely rare for me to see a seasonic that dies young, unlike the other major brands of PSU.

[Raihan]

Originally posted by Samaister:

Originally posted by _I_:

thats under a 500w build, the cx750 should be ok with it

Its not about the PSU being underpowered, its just that PSUs die and often.
In 99% of cases where the PC shuts down unexpectedly and/or frequently at random, the PSU is to blame.
I see it at least once a week through work.
It doesn't matter how new the PSU is, it happens.
Anecdotally may i say that it is extremely rare for me to see a seasonic that dies young, unlike the other major brands of PSU.

hmm I see your point but yeah my build is less than 500watts but hey it wouldnt hurt if i replace the psu and see if the problem still carrys on.

[Samadhi]

Originally posted by You Got Bread?:

hmm I see your point but yeah my build is less than 500watts but hey it wouldnt hurt if i replace the psu and see if the problem still carrys on.

Its not the load you've placed on the PSU, its just the PSU itself developed a fault.
IMO the quality of manufacture of most major brands is mediocre, the cost of replacing dead units is far outweighed by the extremely cheap cost to manufacture(and huge profits hence) in third world countries.

[Squirrell]

A CX750M is a lot different from a CS. It is a tier 4 psu. Trying to overclock with a tier 4 psu is not recommended. (Buying one isn't recommended either.) Been there, asking for problems.

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story6&reid=416

I would swap it for a tier 1 or 2 digital psu with a usb link. The usb link gives realtime display of everything going on in the psu. I have a Corsair RM-i. The mobo needs a usb header (pin style socket) for the cable which all should have. A non-i would be just as good.

My rig is an i7-2600, 16GB ram, GTX970. Overclocked and on turbo, power usage is no more than 320W. No ripple on the 12V feed.

Swapping the psu for a better model might not fix your problem but it will eliminate the prime suspect.

Regarding power surge, there is a bios setting in ASUS mobos that enables monitoring of voltage from the power supply. Receiving a warning message would probably be the result of trying to OC the gpu. You can turn the setting off to see if that improves stability.