Turbo Mode Temp throttling

[Retired]

Hi,

I'm new to Intel overclocking (long time AMD user) and I'm trying to overclock using Turbo Boost.

I've the R4E and a 3960x. I'm using a custom water cooling loop with plenty of radiators and cooling.

I'm trying to hit 5ghz. I set bclk to 100mhz and turbo multi to 50. Voltage to 1.55v.

I can boot into windows and prime95 runs fine. However when the chip temp hits 60c the speed throttles down to 3.3ghz stock.

I know my cooling can handle this, but I can't change this behavior? Is there anyway to increase the temp limit?

Thanks.

[glw165]

yea theres a setting in bios forget what it is just navigate thru till see it

[Shamino]

hi did you check your core temps, using the software core temps that show TJMAX @ 91C and your current one. Once you hit 91C it will throttle down. Either that or your VRM is getting too hot and it will throttle too. Use a fan having airflow over the cpu socket VRM area to check.
Also do you need 1.55v vcore? thats high even for watercooling and doing prime 95

[Retired]

Shamino wrote:
hi did you check your core temps, using the software core temps that show TJMAX @ 91C and your current one. Once you hit 91C it will throttle down. Either that or your VRM is getting too hot and it will throttle too. Use a fan having airflow over the cpu socket VRM area to check.
Also do you need 1.55v vcore? thats high even for watercooling and doing prime 95

Yup, I was watching core temp. For the 30 seconds it ran at 5ghz, the temp highs were only low-mid 80s.

I'm sure my cooling has more room.

[Raja]

Think your voltage is too high and the VRM is getting very hot. Use less Vcore, that will reduce the current consumption and lower the heat. The rest depends on getting a CPU that can do the frequency without needing to be flailed like a mule.

[Raja]

Here's the ideal solution to these issues IMHO:

http://www.mediafire.com/file/chm9mbmyodc52vv/CPU%20Maximizer%20V1.00.02.zip





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A new tool from the ROG Team. Allows you to set overclock thresholds and voltage within the OS for your CPUs. Handy if you're limited by cooling but want to take advantage of higher core speeds during lighter loading. Give it a try!!!!

Enjoy 🙂

-Raja

[Retired]

Thanks for all the replies.

I don't see a sensor reading for vrm temp. Is there one?

Looksl like EK and Koolance are both developing a water block for this board. I might go that route if it's the vrms overheating.

[Shamino]

with good airflow at that area it should be quite easy to manage have you tried?

[Raja]

The current draw at 1.55V and 5GHz at full load is going to be rather large. You may be drawing in excess of 27 amps of current from EPS 12V too (depending upon processor leakage).

I measured 23 amps sustained at 4.5GHz with 1.43V Vcore. Peaks were likely a LOT higher.

[8_Pack]

Also what I noticed with this board is that High VRM area temps are caused by anything over medium LLC on CPU. The difference seen in probe by me for the same CPU voltage in bios is 68C med LLC compared to 81C high LLC. Evan with fan on VRM (Sythe 1450 GT). This is with CPU loading Linx which generates more heat in the area than prime. each CPU is different but mine is 5ghz Linx, Prime, Games, 3D mark, AIDA, Cinebench and anything else I can throw at it stable at 1.46v. So if your putting 1.55 through it your temps will be evan higher and hence your getting the throttling.