Weird Cpu thermal problems

[Freddysquiggles]

I am getting several conflicting readings on my cpu temperature. Task manager also shows a different cpu frequency. AIDA64 tells me that my cpu is throttling but motherboard readings only shows cpu at 45 degrees also my core clock isn't going down. The temperature also jumps from 70-100 degrees. I have no Idea what to make of this please help!

https://ibb.co/fpjTZv

Side note I'm running a custom water loop with 2 radiators.

 

[androbourne]

Can you verify the results by using another program like MSI Afterburner?

I'd also check you thermal paste layout on your cooler. Make sure it is layed out evenly.

If that fails. I'd hate to say it, but in one of those rare cases where a few cores are hot while the others are not. Could be a internal thermal issue which requires delidding the CPU to fix.

It is not a common issue, but it is a known problem with newer gen I7s and I9s.

 

[Freddysquiggles]

Can you verify the results by using another program like MSI Afterburner?

I'd also check you thermal paste layout on your cooler. Make sure it is layed out evenly.

If that fails. I'd hate to say it, but in one of those rare cases where a few cores are hot while the others are not. Could be a internal thermal issue which requires delidding the CPU to fix.

It is not a common issue, but it is a known problem with newer gen I7s and I9s.

Thanks for the quick reply, but msi afterburner shows similar results to AIDA64 and Core temp, it's whether or not my motherboard readings are to be trusted or not, and why task manager shows a different clock frequency.

 

[lumineZ]

I will just copy and paste an answer here from CompuTronix

To help put the OP's question into perspective, Silicon Lottery - https://siliconlottery.com/collections/all/products/del... - is a reputable company that tests, bins and sells overclocked, delidded "K" CPU's. They also offer delidding services, and give the following figures on how much Core temperatures at 100% workload are improved by delidding. Mean improvements are shown in parenthesis:

7th Generation ... Kaby Lake - 12° to 25°C (18.5°C) <--
6th Generation ... Skylake - 8°C to 18°C (13.5°C)
5th Generation ... Broadwell - 8°C to 18°C (13.5°C)
4th Generation ... Devil's Canyon - 7°C to 15°C (11°C)
4th Generation ... Haswell - 10°C to 25°C (17.5°C)
3rd Generation ... Ivy Bridge - 10°C to 25°C (17.5°C)

According to Silicon Lottery's figures, you can see that the highest mean value is Kaby Lake (18.5°C), which suggests that it has the worst thermal performance as compared to any preceding Generations of Intel CPU's. Here's a link to a 71 page Thread on Intel's Forums where 7700K temperatures are being discussed: Thermal sensor issue i7-7700k? - https://communities.intel.com/thread/110728

In my opinion as an i7 overclocker, 2nd Generation Sandy Bridge was the last mainstream processor that Intel launched which was thermally well behaved, consistent and comparatively predictable due to having a soldered IHS. Disappointingly, Intel's 22nm and especially 14nm processors need delidding in order to provide overclockers with thermal behavior similar to 2nd Generation and earlier processors. Delidding the 7700K makes a 5.0GHz overclock with good Core temperatures on air cooling a very achievable result. Just mouse over my avatar and see for yourself.

Also, keep in mind that when reviewing Thermal Specifications in the Datasheets, Intel uses engineering samples with a soldered IHS for testing and developing specifications. As such, the Datasheets do not reflect the poor thermal performance of real-world retail samples.

Or you can click this link: and read ALOT more about and pay attention to section 9 in the post:
http://www.tomshardware.co.uk/forum/id-1800828/intel-temperature-guide.html?_ga=2.209242642.1205101901.1500754556-529710141.1499996457




EDIT: Oh and task manager is not usefull at all when it comes to this. Dont trust it.