Overheating, pc shuts down every some seconds.

[dpiralis]

My pc had high temperature. I burned my finger when I touched over this (gigabyte, look on image ) I removed the fan to clean the dust and all this apart came out I put it in with the old thermal paste. After this the pc auto shutdown every 30-40 seconds.

 

[synphul]

That orange metal piece below the cpu fan is the northbridge cooler and yes, they get very hot. You really should have a fan blowing hot air out the back of the case where the holes are. I'm not sure which part came out, the cpu cooler with the fan or the gold metal piece. You should always clean off old thermal paste with rubbing alcohol and reapply new thermal paste before installing the cooler again. You're probably shutting down due to overheating from not having good thermal paste on the cpu anymore.

 

[Martin1982]

Try to clean it compressed air.. Ad an extra fan if possible

 

[Chicano]

You need to remove the old thermal paste, clean the CPU and heatsink surfaces and put in some new paste. You also need to check if the cooler assembly fits snugh over the CPU, and that nothing is lose or broken in the cooler bracket. Also make sure the cooler fan is running at normal speed. Every component in the CPU cooler is as important as the thermal paste; if anything is not as it should it will not do the job and the CPU can overheat in much less than 30-40 seconds.
You have a 775 socket system and if you have not serviced the cooler assembly it's probably way overdue for some attention.

 

[Saberus]

You should always replace the paste when you remove any heat sink, otherwise you get air bubbles that prevent heat transfer.

 

[dpiralis]

I removed the fan with the cpu cooler because it had so much dust not the north bridge cooler(pc was turning off every 1 hour). So do I have to put thermal paste there? Does North bridge needs thermal paste, should I remove it for cleaning or not. my pc is 5 years old. Cooler has not bolts, it is with clips and it is moving up/down a bit.

 

[Saberus]

The paste should go on the cpu, then the heat sink placed on top. If the northbridge heatsink is able to move up and down, it's no longer in good contact and the northbridge will overheat, it can easily be damaged if it overheats too much and the system will refuse to boot or only run for a few seconds.

 

[dpiralis]

The fun with the cpu cooler is moving a bit, northbridge just overheats. I am wondering if the problem is at northbridge or at cpu cooler with old thermal paste. Should I fix northbridge or just to put thermal paste?

 

[dpiralis]

I put thermal paste on the cpu. Cooler looks fine but temperature is too high , again.