This CPU core temp variance ...

[Bhav]

Why are my first and third cores so bad? (look at maximums).

 

 

 

(4.4 Ghz 1.318v).

[GDRRiley]

because of where they are located on the die 

[Simon771]

I guess TIM is not spreaded well.

[Bhav]

35 minutes ago, Simon771 said:

I guess TIM is not spreaded well.

I already reseated it twice, its still the same with the tim spread well and no air.

[YubinTheBunny]

Seems normal to me, my lowest max core temp to highest max core temp have a delta of about 17C at full tilt. So I guess as long you keep the hottest core under control it shouldn't matter too much.

[done12many2]

52 minutes ago, Bhav said:

Why are my first and third cores so bad? (look at maximums).

(4.4 Ghz 1.318v).

 

Broadwell-E is known to have high variation in core temps, but that is the worst I've seen yet.  That's more than likely a not so great chip there.

[Bhav]

Just now, YubinTheBunny said:

Seems normal to me, my lowest max core temp to highest max core temp have a delta of about 17C at full tilt. So I guess as long you keep the hottest core under control it shouldn't matter too much.

Yes that is the plan, also they're not gonna reach anywhere close to that while gaming so as long it passes IBT its fine.

[Bhav]

Just now, done12many2 said:

 

Broadwell-E is known to have high variation in core temps, but that is the worst I've seen yet.  That's more than likely a not so great chip there.

Mine have a 11 degree difference, but Bunny says he has a 17 degree one, so it seems fine?

[done12many2]

1 minute ago, Bhav said:

Mine have a 11 degree difference, but Bunny says he has a 17 degree one, so it seems fine?

What do you mean you have an 11 degree difference?

[Bhav]

2 minutes ago, done12many2 said:

What do you mean you have an 11 degree difference?

90-79 ... difference from the next highest cores is what I meant.

 

But then highest to lowest difference is 22 degrees.

[done12many2]

2 minutes ago, Bhav said:

90-79 ... difference from the next highest cores is what I meant.

 

I think you're leaving a core out of your equation.  You have a 22c difference at peak temps.

 

 

[Bhav]

I edited that in, that 68 degree one is just too awesome to be compared to the rest. 

Just now, done12many2 said:

 

I think you're leaving a core out of your equation.  You have a 22c difference at peak temps.

 

[done12many2]

Just now, Bhav said:

I edited that in, that 68 degree one is just too awesome to be compared to the rest. 

 

 

Nice!

 

Another thing you need to watch closely on Broadwell-E is package temps.  Don't just watch core temps.  

[Simon771]

May I ask what cooler are you using?

And when I said that TIM isn't speraded well, I mean that TIM inside the CPU. The one you can change when you delid CPU.

 

But that's like 100% new CPU and those differences are realy bad. I would try to RMA it, but they would probbably just say that 90°C is still fine and won't harm your CPU.

[Bhav]

1 minute ago, Simon771 said:

May I ask what cooler are you using?

And when I said that TIM isn't speraded well, I mean that TIM inside the CPU. The one you can change when you delid CPU.

 

But that's like 100% new CPU and those differences are realy bad. I would try to RMA it, but they would probbably just say that 90°C is still fine and won't harm your CPU.

H110i GT. I doubt I can get a replacement for overclocked temps, and tbh I've already spent too long without a working gaming PC when my motherboard failed. I wouldnt want to send it back unless it stops working.

[Simon771]

1 minute ago, Bhav said:

H110i GT. I doubt I can get a replacement for overclocked temps, and tbh I've already spent too long without a working gaming PC when my motherboard failed. I wouldnt want to send it back unless it stops working.

Well 90°C realy isn't great, but if that's temp that you get after hours of Aida64 with cancer FPU testing ... well you will just have to live with it.

But if you get to 90°C under normal/daily usage, I would be worried.

 

My i7 4790k is kinda overheating and getting to 80°C when running aida64 with FPU on. But under normal usage, I don't ever see it going over 72°C even after hours of video editing. So I'm fine with that.

 

But if you get to 90°C with daily usage ... I wouldn't stop looking at fiding solution for that, because I just wouldn't feel safe running it that way  

[Bhav]

IBT isnt daily usage lol.

[Bhav]

Well maybe I should have mentioned that the results in the OP were at 28c ambient.

 

This is at 24c ambient: