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My I-3770k reached 120Cº ? It works fine at least for now shoud I worry?

post #1 of 6
Thread Starter 
Hi,

After replacing my PSU, I forgot to put back a sata power connector in my H100i Water cooler(CPU fan and USB were connected), it seems the watercooler pump was turn off and also the fans on the watercooler were probably not working.

The PC was used in gaming too for 3 days I noticed today when trying to bench and max shogun 2 setting I went to Asrock Formula Drive to check the temp sensors and was shocked at the values of 100-120ºC in Asrock Formula drive sensors near CPU, I quickly fixed.

1 - My question is AFAIK every PC should turn off when the CPU hits 100ºC why didn't mine? Could I have turn off an option to do this in the bios?

2 - Can CPUs handle temps over 100º?

3 - Is there any software to check the integrity of my CPU?

I'm also not sure if the sensor temp means the actual CPU temperature but when I turn the h100i on it feature a red led which means the cpu was over 60º.

thank you,
Deathmachinept
Edited by DeathmachinePT - 3/5/14 at 6:18pm
post #2 of 6
Your sensors are probably messed up. Your cpu will never go over 100C it will shut itself down before that. I wouldn't worry about it.
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post #3 of 6
Ivy Bridge TJ Max is 106c, which is the point where it starts throttling to insanely low speeds to reduce heat output, so I think 120c was an erroneous reading by the sensors

But to answer your question, short term running at 100c (especially at stock speeds) isn't going to pose much of a threat to the processor (Laptop CPUs based on the same architecture somehow survive being under load with clogged heatsinks and people blocking the fan grill)

If your computer runs fine, I'd say you're good, but if you want to test the CPU you could always fire up a stress test like prime95 thumb.gif
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post #4 of 6

Yes, you should definitely worry. Hardware exposed to temperatures around 100º C on a regular basis will probably suffer decreases in lifetime, but 120º? If it is still functional after that encounter with hell-like temperatures, then it is probably fine, as any forms of technology rarely have a "delayed reaction" to physical damage. If it does get into the 100sº-120ºs, I suggest stopping whatever it is you're doing and let the chip cool down. The 3770K is generally accepted to have an operational temperature ceiling of about 105º, so try to keep those temps down if at all possible! As far as the program you mentioned, is this what you're looking for? I have never tried the program personally, but I'm sure another OCN user can speak about it.
post #5 of 6
Thread Starter 
Thanks, the CPU probably did not reach over 100C and the motherboard sensors are not the real temps on the CPU, will kept testing the cpu and will check that cpuburning link and do a prime95.

Probably the heat was being dissipated to the motherboard itself and the H100i Copper plate and all 3 CPU sockets sensors were getting those temps still I have been playing heavy games with a CPU over 65º doh.gif need to work on temp alarms..
Edited by DeathmachinePT - 3/5/14 at 6:56pm
post #6 of 6
Quote:
Originally Posted by DeathmachinePT View Post

1 - My question is AFAIK every PC should turn off when the CPU hits 100ºC why didn't mine? Could I have turn off an option to do this in the bios?

The hard cutoff for Intel parts is ~125C.
Quote:
Originally Posted by DeathmachinePT View Post

2 - Can CPUs handle temps over 100º?

Depends on load, clock speed, and voltage. Since your part was probably throttling quite heavily, it might have escaped any significant degradation.
Quote:
Originally Posted by DeathmachinePT View Post

3 - Is there any software to check the integrity of my CPU?

The same sort of stress testing you would do to validate an OC can reveal if there is significant degradation or damage.
Quote:
Originally Posted by Syan48306 View Post

Your sensors are probably messed up. Your cpu will never go over 100C it will shut itself down before that. I wouldn't worry about it.

The auto shutdown temp for Intel CPUs is around ~125C. Some boards have the ability to set a lower temp, but if these features are not enabled, you generally have to reach well over 120C to force a shutdown.

PROCHOT will normally throttle the CPU heavily just before it hits it's TJmax, but this can also be disabled on many boards.
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