Silicone lottery, heat

Bob_129

Commendable
Dec 1, 2016
18
0
1,510
As far as I've understood it. The silicone lottery has been about how much frequency you can get out of your CPU with the minimum amount of voltage.
But can it also be thermal based? As in your CPU gets hotter than most under the same conditions?
I have 1.36 volts going through my 2600 with a crosshair vii main board.
The heat sink is a 280mm kraken with some after market vardar fans on it.
Did a great job keeping my 5820k under 70c at all times @1.3 4.5ghz.

But this CPU gets to 80 degrees in an air conditioned room during prime 95 tests. I've checked the mounting and Re did the paste. (Thermal grizzly)

It usually runs in the 60s while playing blackout with spikes into the low 70s(all threads are getting decent use in that game)
And even sits in the 50s in some other games.

I'm okay with the temps for my general use. Just surprised that it gets so hot with a big radiator.

Oh, and turning the fans up to 100% just makes it take a bit longer to get to 80.
 

USAFRet

Titan
Moderator
The "silicon lottery" is how well or poor the actual CPU in your hands may perform.
Within a given model, they are not all identical.

Some may be able to overclock to 5.2GHz, other, to only 4.9GHz.
Not matter what cooling situation you apply, or what voltage you can apply.

At 80C, you have no thermal throttling.
If you try to increase the GHz, or voltage to keep it running, the temps will increase.

If you get to the point where this particular CPU simply will not run with another level of GHz increase, no matter what you've done with cooling or voltage...then you've hit the limit on that particular CPU.
 

Bob_129

Commendable
Dec 1, 2016
18
0
1,510


Hi,

I'm using core temp, MSI afterburner and NZXT CAM.
they all report the same temps.
 
I recently bought the Kraken X62 and i know CAM uses the correct temp without offset. Be sure to set pump to high in CAM for best performance. Also, you should be able to run lower voltage. Running prime 95 with my voltage on auto it runs around 1.25v or close to it with same mobo and Ryzen 7 2700X.
 

Bob_129

Commendable
Dec 1, 2016
18
0
1,510


I've got the x61.
Seems like you can only control the fan speed on CAM?

As for the voltage, do you have a manual OC applied? From what I understand, the gains are minimal if you're overclocking the x chips. So not worth it, where as the non x versions are definitely worth it.
I have it set to 4.1ghz
I stability errors in prime 95 and asus real bench if my voltage is any lower.

 
I've done both OC and non OC. The first time I ran Prime95 it went to 100C. I honestly don't know why because I checked everything. I did have an OC of 4.2GHz and auto voltage which went to 1.45v. But after that I found pump speed in CAM and set it to 100% and it hasn't done it since.
 

Bob_129

Commendable
Dec 1, 2016
18
0
1,510


Can you post a screen cap of where you find the pump settings?
There have been plenty of times where I've been looking for things and it's right in front of me.
Or it might be that the x61 doesn't have manual pump control.
But I can't see it in cam. Only fan control.
 
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