8700k cannot exceed 47 without causing a delay.
8700k cannot exceed 47 without causing a delay.
It seems the latest updates to P95 often incorporate AVX instructions, which aren't frequently needed by most consumer tasks and can cause higher temperatures. Consider using version 26.6, or it might be possible on current Intel systems to enable a multiplier adjustment for AVX operations.
avx prime is causing very high temperatures. using p95 26.6 matches what tjhooker mentioned. otherwise, no delays will result in high heat spikes. it really depends on the original timing signal and silicon variation; i’m not surprised you’re seeing such high temps. i don’t think I reached above 4.8ghz before delid occurred, and my chip quality is probably a bit lower than average.
Before canceling any guarantees, I'd make sure to test what I've proposed at least twice.
4745454b :
I have a few thoughts on this. First, your temps doing this will be much higher than your temps while gaming/other use. While I wouldn't allow the temps to get much higher, I'm not worried about 85C during stress testing. As long as your gaming or other use temps are back under 65-70C or so you'll be alright. You also have a seriously high tmpin4. 102C? That could be a part on the motherboard frying. Check your board near the CPU and see if you need active cooling on those sinks. (I just woke up, can't remember the name for the VRMs. Yay! Brain finally booting up!)
I'd like to point out that there is only a 400MHz difference between 4.7GHz and 5.1GHz. That's not enough to make me push a chip if the temps or voltage get out of hand. To be honest, if you have to cause the temps to go to high or increase the Vcore too much to get to 4.8 or 5.0, it's not worth it. 4.7GHz is still really fast.
4745454b :
You are using an AOI cooler which doesn't provide any air flow to your VRM heatsinks. Strap a fan to them and see if that temp comes down. You need them running cool as well as the CPU. Over taxed VRMS aren't going to provide clean power to the CPU, and can prevent a good OC.
4745454b :
I assume all those fans at the back and top are exhaust fans? None of them are "in line" with that area you marked, and it doesn't appear to be getting any real airflow. Worse, it has that bracket on the top just holding air in. If all three of those fans are exhaust fans, try flipping some around to blow air in. Or as I said earlier try strapping an old fan to that area somehow. You need to move air across that section somehow.
4745454b :
Before voiding any warranties I'd at least try what I've suggested twice now.
Very good advice you've attempted to share with the OP.
At JX432, even though your 8700K did not come with a cooler and you chose an AIO cooler, unfortunately the motherboard setup is still designed for a forced air cooling solution and your fans on the top and rear of the case are not supplying what that type of cooler would have been outputting over the motherboards VRMs.
Which means you have to supply the missing air over those VRMs.
FYI: it is possible to to overclock an 8700K past 4.7ghz without delidding the processor, IF, the cooling solution you are running can support it.
So I tilted one of the fans to let more air flow onto the VRMs, using Prime95 2.66. Here are the temperatures after about 30 minutes of stress testing: What do you think?