Corsair H150i Pro Hitting 80c on cinebench with 4.7 oc

[GalaxyOW]

So I've seen people only hitting around 50c with 5 GHz on an 8700k. But my cpu hits around 75-85c in cinebench and I don't think that's normal. The fans are at max and so are is the pump. I don't think I set it up wrong My fans on the outside of my radiator if that makes sense. Unless the forums I read with people that got 50c with 5 GHz had their cpu's delidded. I'm not sure. I don't think my cpu should be hitting 80c with it not being delidded.

[racer243l]

Those guys must have delidded their CPU´s. 50°C isn´t possible on the stock paste.

[GalaxyOW]

I replaced the stock paste with NT-H1

[Skiiwee29]

sounds like your delid didnt go as planned and there may be a gap not allowing good transfer of heat between the DIE and IHS. 

[Bananasplit_00]

id expect 80C on an AIO at 1.357V on the I7 8700K

[TempestCatto]

21 minutes ago, GalaxyOW said:

I replaced the stock paste with nh-h1

He means the TIM, which goes inbetween the die and the IHS. Intel used a paste, rather than solder. Paste doesn't have near the amount of thermal conductivity as metal solder does. You'd replace the TIM if you delid. What is your ambient room temp? I assume your fans are blowing into the rad in a push config, yes? And you have good exhaust too? I know you used Cinebench, but if you used Prime95 don't use any version beyond 26.6 (unless that issue is solved and I still don't know it) but the way the AVX instruction "issue" can cause a 130% load on the cpu. Regardless of all this, Coffee Lake "K" cpu's run pretty hot by default, you are within the max operating temp anyway. I believe TJ Max is at 100c. At 5ghz I think these temps seem normal.

8 minutes ago, Skiiwee29 said:

sounds like your delid didnt go as planned and there may be a gap not allowing good transfer of heat between the DIE and IHS. 

OP did not delid.

[Skiiwee29]

3 minutes ago, TempestCatto said:

***snip***

the way he replied to the comment above him made me think he did. 

[meenmeen1103]

23 minutes ago, TempestCatto said:

He means the TIM, which goes inbetween the die and the IHS. Intel used a paste, rather than solder. Paste doesn't have near the amount of thermal conductivity as metal solder does. You'd replace the TIM if you delid.

TIM doesn't indicate placement, it's just the term used for any and all materials placed between two surfaces for the purpose of cooling one. This includes thermal paste/grease, thermal adhesives, thermal pads, solder etc.

21 minutes ago, Skiiwee29 said:

the way he replied to the comment above him made me think he did. 

The user above OP meant '50C isn't possible on the *Intel* stock paste.' while OP meant "I replaced the *Corsair* stock paste with NT-H1".

 

Anyway, temps seem fine for a non-delidded 8700K honestly. Those CPU's almost benefit more from being delidded than from putting a great cooler on them.

 

[Mick Naughty]

Looks fine to me. I hit the same temps on a custom loop. 

[TempestCatto]

8 hours ago, meenmeen1103 said:

TIM doesn't indicate placement, it's just the term used for any and all materials placed between two surfaces for the purpose of cooling one. This includes thermal paste/grease, thermal adhesives, thermal pads, solder etc

lol honestly that skipped my brain because I only ever see/hear the term "TIM" when people are talking about deliding and that. My bad.

[meenmeen1103]

34 minutes ago, TempestCatto said:

lol honestly that skipped my brain because I only ever see/hear the term "TIM" when people are talking about deliding and that. My bad.

You're good, and that's fair, I've also mostly seen it only used in that context.

[TahoeDust]

Looks pretty normal to me for the voltage...although, I would think that voltage should get you more than 4.7...