I7 8700K Hot Or fan problem
I7 8700K Hot Or fan problem
Hey guys, I have a pretty simple question here xD. Recently I built a brand new PC with an NZXT X72 i7 8600k CPU, 2 2080 SLI graphics, and a GTX 1060. I overclocked the CPU to 5GHz, but it's running at around 40°C when idle and about 80°C during use. I was wondering if maybe I should swap the fans in a different orientation? I found some pictures that might help you understand what I did. Here are the links:
https://ibb.co/hms1uK
https://ibb.co/dZpLoe
https://ibb.co/cDoD8e
The first photo shows three front fans on the radiator, the second two top fans, and the third one at the back of the case. Maybe I just placed them in the wrong direction? I'm not sure.
It's difficult to identify clearly from the initial image. However, the rear and upper sections appear acceptable. Would you like me to share a clearer front-facing photo similar to the third one?
Mainly the front fans are aligned in the same direction as the rear fan!
Yeah then you are right. Air should be going in the front and out the back or vice versa depending on the surroundings. Double check your pump is working correctly. Also what is the ambient temp in the room?
You just have an incredibly hot setup. The die on those 2080s are huge and the i7 runs super hot especially at 5 Ghz. You could always try delidding and using liquid metal since it is much easier now with the delidder tools but there is always a risk of damaging something and it voids the warranty.
Hi karolm,
What are your settings for that overclock?
Is your CPU lidded?
If not, you have your answer—you need to liddle it.
Even with the better "traditional" cooling system, the poor thermal paste Intel put between the IHS and the die stops heat from reaching the cooler efficiently...
Rodolphe
Consider the fans carefully based on how they should work. Let air enter through the front of the case, pushing through the radiator. The top and rear fans should expel air from inside.
Almost identical motherboard and 8700K setup... One certainty is that at 5GHz the CPU will get hot. It’s important to know your vcore for that overclock, since most of the heat comes directly from the voltage needed to maintain 5GHz.
Your configuration is decent overall—fans are working well to push air through the radiator, into the case, and out the top and back—but for a 5GHz overclock you’ll need better cooling or a lower vcore. A temperature of 40 degrees during idle is acceptable, though it’s quite high for gaming (around 80°C).
If you can determine your vcore at maximum load using Prime95 v26.6, that would be useful. I have mine with an offset/adaptive setting; at 5GHz it stabilized around max 1.327. I lowered it to 4.9GHz at 1.278v during my 24/7 overclock.
Besides that, I’ve tried similar adjustments and ended up significantly improving performance. My idle temps dropped to late 20°C, and I reached 60°C under full load with AIDA and Prime—definitely worth it and better than expected. I’m using a 360mm AIO.
Thanks for your answers, so I flipped the fans in front but the temperature dropped by about 1°C. I went back to neutral settings in BIOS, which brought me up to 4.5 GHz. After the stress test, I’m getting around 60°C. I’m going to consider delidding my CPU and see how hot it would be after all this.
I should point out that a manual overclock is much better...just in case you are on a auto overclock and there is a great thread on overclocking this very board with the 8700K here:
https://www.overclock.net/forum/6-intel-...gs-10.html
vMax :
Looks almost identical to the same motherboard and 8700K as mine... The only certainty is that at 5GHz the CPU will get hot. It’s important to grasp your vcore for that overclock, since most of the heat comes directly from the voltage needed to maintain 5GHz.
Your configuration is decent overall—great fans moving air through the radiator and into the case, then out the top and back—but for a 5GHz overclock you’ll need a more robust cooling solution or a lower vcore. A temperature of 40 degrees during idle is acceptable, though it’s quite high for gaming, which typically peaks around 80 degrees Celsius.
If you can determine your vcore at maximum load using Prime95 v26.6, that would be helpful. We could check if lowering the vcore is possible. I have mine set to an offset/adaptive profile; at 5GHz it stabilized at a max of 1.327. I lowered it to 4.9GHz at 1.278v during my 24/7 overclock...
Otherwise, I’ve tried similar adjustments and ended up significantly improving performance. My idle temps dropped to around 20°C, and under heavy loads they reached 60°C—both AIDA and Prime results were better than expected. Still, I’m using a 360mm AIO cooler.
I’m having trouble setting the vcore voltage in BIOS every time I change it manually. The system reverts back to auto; I’m puzzled as to why.