CPU damage from 90 degrees?

[RobertGPS]

Hi, I have built a New PC. A 5820K cpu, X99 gaming mobo from MSI. Now I ran prime 95 to test, but the temps raised to 90-91 degrees instantly (because my watercooler wasnt installed correctly). It stayed on 91 degrees but within 5 seconds from start I quit prime95. Now after that I reaeated the cooler, temps were great after that. Now I tested the videocard on Heaven Benchmark. After 5 minutes it froze... Hard reset and tried again, it ran smoothly for 15 minutes and then I quit the benchmark myself, because I had to go to work.

But I am a little afraid it froze because of the CPU getting to hot..? Could it be damaged? Or doesnt this make sense? It is nu first PC build and I am VERY new in this

 

[fliger5]

90°C are okay for Intel CPUs, no need to worry.

 

[Shaun o]

Thermal limits of an Amd FX based cpu are about a max of 85c.
Intel core I5 and I7 cpu`s can reach up to 95 to a 100c.

The only way you are going to know if the cpu is damaged, after making sure the water cooler is fitted right and the temps are nominal now.

Is to stress test the cpu, or use a burn in test at the cpu`s stock speed without any over clocking applied to the cpu, and it`s stock core voltage.



A tell tale sign you have weakened the intergrated circuits of the cpu is it will crash at it`s default clock speed`s and voltage setting.

If so, if you up the Vcore of the cpu slightly by 0.25mv till it becomes stable.
If you have to though it indicates degradation of the cpu circuits due to heat or extreme over clocking as said.

Over clocking damage symptoms.

What tends to happen is for example you cannot reach the same over clocking value/ cpu speed you could once obtain when you do an extreme over clock or push the cpu frequency too high.
And have to down clock the cpu so it becomes stable, while upping the voltage slightly.

For the most part your mobo should protect the cpu from Burning out and sustaining damage by auto powering the system down in such a case.
It the heat of the cpu worries you, you can go into the bios of your motherboard and set up a thermal shut down value in 0c or f. so the board powers off if the temp value is reached in the bios as a safety feature.


A safe guard if you like.

 

[Abram1996]

Assuming you are talking Celsius, you should be okay. From what I gather, normal seems to be around 70-80C. around 100 degrees and above causes the CPU to slow itself down to prevent damage. CPUs are designed with fail-safes that protect against permanent damage caused by high temperatures. And benchmarks are made to push your CPU to a to the (safe) limits. It seems to me that your computer freezing is not related to the CPU hitting 90. If the freezing persists let us know.

 

[RobertGPS]

Ok thx for your answers. Yes the temps are REALLY good now the h100i actually fits ans makes good contact with the CPU. Good to hear the CPU protects itself. Should I run the Intel processor diagnostic tool to be sure? That is a modest/easy tool right? Ill stay away from prime now..