In my case, I have an 8700K which I delidded with Conductonaut (normal to leave a dark residue on the heat spreader?). I'm cooling it with an H110i. I'm using Kryonaut between the CPU and the block. Used the spread method.
I was able to get to 5.2GHz pretty easily. The VCore reports 1.39V. But when I run something like Prime95 (no AVX), It jumps straight to 84C while the coolant is still around 35C. It levels out around 86C, which to me is just way too hot, but it IS a stress test so it doesn't normally run like this. In a normal workload, it will hover around 45C-50C and then spike to 70C, which is what has me concerned.
The thing is, it seems like it's more common to see people get ~55C max on prime95 in a similar scenario. (One guy was at 1.4v 5.3GHz, saw 57C max. I have trouble actually believing that.)
I mean, I suppose my ambient is fairly warm around here (around 27C). But the fact that the CPU is able to jump up so quickly regardless of the water temperature is what makes me think something isn't contacting properly.
Normally I don't ask these questions because I've been overclocking and modding for decades. But water cooling is fairly new to me, as is Coffee Lake, since my last CPU was a 3570K.
So is this normal, and I should just reduce my clocks to hang out in a comfortable range? Or does this seem unusually hot? I would think a dual 140mm RAD would be able to keep it from going above 70 without the water warming up significantly.
I was able to get to 5.2GHz pretty easily. The VCore reports 1.39V. But when I run something like Prime95 (no AVX), It jumps straight to 84C while the coolant is still around 35C. It levels out around 86C, which to me is just way too hot, but it IS a stress test so it doesn't normally run like this. In a normal workload, it will hover around 45C-50C and then spike to 70C, which is what has me concerned.
The thing is, it seems like it's more common to see people get ~55C max on prime95 in a similar scenario. (One guy was at 1.4v 5.3GHz, saw 57C max. I have trouble actually believing that.)
I mean, I suppose my ambient is fairly warm around here (around 27C). But the fact that the CPU is able to jump up so quickly regardless of the water temperature is what makes me think something isn't contacting properly.
Normally I don't ask these questions because I've been overclocking and modding for decades. But water cooling is fairly new to me, as is Coffee Lake, since my last CPU was a 3570K.
So is this normal, and I should just reduce my clocks to hang out in a comfortable range? Or does this seem unusually hot? I would think a dual 140mm RAD would be able to keep it from going above 70 without the water warming up significantly.
