Psu or motherboard problem?

Patrik Stallone

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Nov 30, 2015
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Hello,
I have a problem with my pc and I do not know what to do anymore. I turn on the pc, everything seems okey but no screen. Then after few seconds the pc turns off and turns itself back on with no screen again. After it the pc is just working continuously with no screen. :( fans, motherboard lights and leds are also working.
Any ideas what can it be? I assume there might be a connection with the PSU as it sounds strange when i turn it off with the PSU button.
Thanks,
Patrik
 

Patrik Stallone

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Nov 30, 2015
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My motherboard and cpu is new. Bought it few months ago and my gfx was changed too some times ago. The oldest thing in the pc is the psu. In the last few weeks i used my pc a lot as i have a lot of essays to do so i did not turn it off. Only sleep mode and hibernate. I dont know it might be thebreason it went bad? But it was all fine i mean i played yesterday and today in the morning did a bit of essay too...
 

Patrik Stallone

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Yes, i have to do it as soon as possible. I have 11 days to finish my last essay and no pc :( thank god im saving stuff on memoristics to. Thank you for your help and time :) ill let you know what happened.
 

Kirk_2

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You assembled this system yourself, including the heat sink to the CPU?
Did you properly apply the thermal paste and you're versed in applying thermal paste?

the sudden shutdown's sound like a CPU thermal panic intolerantly halting to protect itself on a carnal level and final level to avoid melting.
That becomes evident if left off for an hour to adequately cool.
Reboot, note the period of time before it panics off.
Restart immediately, does it die in less time every time as if it's reaching panic temperatures at a faster pace because it hasn't had time to adequately cool itself off again ?

Failing RAM can also be the cause of what you're describing, regardless of the power supply, can you pull all but the bare minimum RAM chips before reattempting successful boot. Swap RAM chips to rule out or zero in a bad DIMM.

Buying two bad power supplies in such a short period of time isn't impossible, but it's highly unlikely but appealing to immediately blame on an emotional level since failing hardware on specs like yours would be heartbreaking even to a spectator like me and an ocean away.
 

Patrik Stallone

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Well, when i turn on the pc it starts fine but i have no screen but the monitor is working for sure. So i turn it on then after 20 sec turns off, then turns back again and it works but no screen. It doesnt turn off again. I left it like 10 minutes and it was working but i didnt want to risk itbso i turned it off.
 

Patrik Stallone

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Yes i assembled it and it was working for months. Do you think that no screen could also be connected to cpu and thermal paste? Oh by the way i did not apply thermal paste as it was on it already.
 

Kirk_2

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A CPU in thermal panic may or may not fritz the display, it's behaving on a reptilian level to shut itself down and ignore an insistent owners demands for usage.

Since your cpu arrived preassembled is helpful and can you start pulling all but the necesarry minimum RAM chips, tracking every one used and reattempt boot?

Dying RAM can do the same thing as your describing, it takes longer to overheat but can force a panic halt but more often just creates an obscenely messy crash with error codes like a Windows blue screen or BIOS HeX code.
 

Kirk_2

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forgot to ask, does the power supply feel hotter than normal to the touch?
Especially and you would've mentioned it by now, is it generating unusual odors, you'd realized that by now as the reason why your day is turning awfully distracted.
If it isn't that old, and unless it's residing inside an unregulated animal grooming clinic, dust buildup is an unlikely culprit for a power supply failure and suggesting a blast of canned air would just be superstitious for the moment.
 

Patrik Stallone

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Nov 30, 2015
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I didnt touch the psu, ill do it tomorrow. And the psu is like 3 years old or more. You might be right and it will be that the cpu is too hot. Ill apply thermal paste tomorrow and lets see what happens. I will also clean the interior too.ill change the rams up too or just use 1 and then try it with another one too.
 

Kirk_2

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I would discourage you from tampering with professionally applied paste.
This system worked fine for months until recently, implying a key deterioration.
Power supplies are built for long uninterrupted periods of operation, they frequently die quick or last for a long time.
RAM fabricators are racing eachother to make every evolution cheaper than ever, CPU manufacturing has only improved with the years.
Motherboard makers aren't as cheap as RAM FAB's since they distinguish themselves by speed and reliability..from integrated chips often made in the spirit of RAM.... you get my point.

Determining if RAM is the cause is crucial since when comparing system components, RAM has the longest useful service life capable of surviving upgrades until being relegated to the firewall box left unattended in the basement corner. Flawed, buggy, undetected bad RAM insidiously creates a recurring itch in a bad spot.

Whether you're amenable, MEMTEST will let you determine once and for all, but it requires a couple of hours to complete and the unstable power state makes it less than idea. Whether for now or the future /

http://www.memtest.org/#downiso

Have a minuscule formattable USB KEY or blank CD ready.