shut downs after a few hours

ExoMale · 31 May 2016 at 12:07

i dont know exactly how many hours, but last night i left my computer on and woke up to it being off(was like 4ish hours between the point of sleep and wake up), figured power went off, but everything else in the room(fans/lamps) still running, it wasnt till i turned the computer back on to realise it shut off on its own as google tabs had to be restored, then.......

from somewhere between 5:30-6am when i woke and turning computer on till before 11 when i went down stairs the computer was running fine, didnt even use it, so left it on, then about 10 minutes ago i came back upstairs to use it and it was off, same story with the shutdown and restore brower.....

its a very warm day, has been last couple days here in devon, but its not hot in the house and i had 1 side panel off my case which i havent put on since the rebuild, so i can keep eye on things as sometimes the usb ports on case act funny, so its not like theres bad ventilation especially with 3 fans, so i have no idea whats going on :confused:

, never had heat issues with this system before and could run pretty much 24/7 prior before yesterday.

does anyones have any solutions i could try? :confused:

barely any dust in the case and nowhere near enough dust on heatsinks to cause blockage, my power supply seems to be running fine too, there is just nothing evident to suggest hardware faults, hell if the paste on the cpu dried it wouldve burnt up long before the first hour or 2 im sure.

Borealis · 31 May 2016 at 12:14

If it was a thermal shutdown, then there should be something logged in event viewer.

Have you checked to see what power plan Windows is set to use? (Control Panel => Power Options)

There is an option in there to auto-shutdown I think.

Otherwise, have you got a spare PSU you could test with? If it does the same thing with 2 PSUs, then you can rule that out.

bledd · 31 May 2016 at 12:35

Run Speccy, leave it in the background, then run something CPU intensive. Take a look at the temps.

Check event viewer

ExoMale · 31 May 2016 at 12:37

thanks for reply.

i will have a look, but i have hardware monitor and nothing seems to be wrong with any temperatures and the power option is set to 'balance' and pretty much been this setting for several months or since i got the computer(mobo/cpu/8gb ram/1tb hdd parts anyways) about a yearish ago now.

i wouldve said yes, but not one to power the 270x, however i sold that rig yestersay lol, but my supply hasnt been causing any issues since i got it at christmas and my sig is my rig as it stands.

ExoMale · 31 May 2016 at 12:49

i was about to do the following, but something interesting came to my attention, the power went off shortly after i wrote my reply then back on meaning someone or something bothered the power line, but my missus was at doctors down the road from 11:10 and she said the power went off there which would time it with the last shutdown when i wrote this thread, there are houses being built few yards from my estate, but nobody would be there during the night or before 6am :confused:

so after all this there might not actually be a fault my computer, might just be a power line problem, but i will keep an eye on things with your suggestions just in case like, so thanks for that.

Borealis · 31 May 2016 at 13:01

Sounds very likely it could be a outside power line issue then. Do you have any sort of surge protection just in case the supply spikes when it comes back on?

bledd · 31 May 2016 at 21:54

You could buy a UPS.

APC make excellent ones.

ExoMale · 1 Jun 2016 at 09:25

thanks for replies.

yeah it turned out to be the guys building the new houses, wanted to move a pole or something to feed the cables underground :rolleyes:

, no pre-warning for a planned thing but hey, while shutdowns like that are not fun or good, least it didnt damage my system so no expensive replacements

my computer is plugged in to a belkin surge protector extension lead i got ages ago, my main monitor im using right now isnt, but dont generally get issues from normal extension leads i use.

bledd · 1 Jun 2016 at 10:53

Surge protector doesn't protect against power loss, just spikes. A UPS will keep your machine on for ~10-30 minutes and shut it down gracefully when the battery is getting low. (if it's got a USB connection)

westom · 1 Jun 2016 at 15:05

ExoMale said:
... while shutdowns like that are not fun or good, least it didnt damage my system so no expensive replacements

Any appliance damaged by a sudden power loss was defective when purchased. Power loss only causes damage when fears replace facts. Power loss must never damage electronics - as was an international design standard long before PCs even existed.

Power restoration does not create destructive surges. When power is restored, then everything is demanding maximum power. That means voltage only slowly rises. Slow rising voltage can be problematic to motorized appliances. And is ideal for electronics. To increase electronic life expectancy, we may even include an inrush current limiter - to duplicate how power is restored.

Belkin does nothing until 230 VAC well exceeds 500 volts. Where is well over 500 volts when power is restored? It does not exist. Belkin does nothing for a blackout or power restoration. UPS is just as unnecessary for hardware protection. UPS provides time for unsaved data to be saved. Or to eliminate a delay on reboot. Nothing more. It does nothing for hardware protection. Otherwise numbers for that protection were already posted.

BTW, if the monitor connects to the same receptacle as the Belkin, then monitor is equally protected by the Belkin.