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6 Posts

03-12-2019

Russian Federation

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  • Message 41 of 47

Re: X1 Extreme throttling at really bizarre temperatures

2019-03-12, 22:06 PM

OK, it was BD PROCHOT.

Used ThrottleStop on Windows, wrmsr on Linux.

Even if it fries my laptop couple years down the road, that is much much better than having a useless laptop now.

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45 Posts

10-24-2017

Germany

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  • Message 42 of 47

Re: X1 Extreme throttling at really bizarre temperatures

2019-03-13, 6:32 AM

What do you mean with "OK, it was BD PROCHOT"? It active by default and you can't deactivate it, certainly not with ThrottleStop. Although I'd recommend everyone using it for Undervolting. 

I've run TS-Bench, which is includeded in Throttlestop, and my CPU doesn throttle below 2.99GHZ throughout the test for 193s for 1024m.

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6 Posts

03-12-2019

Russian Federation

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  • Message 43 of 47

Re: X1 Extreme throttling at really bizarre temperatures

2019-03-13, 7:34 AM

> It active by default and you can't deactivate it, certainly not with ThrottleStop.

It has a checkbox. The guide says use with caution: http://forum.notebookreview.com/threads/the-throttlestop-guide.531329/

 

> What do you mean with "OK, it was BD PROCHOT"?

I mean, zeroing the PROCHOT bit solved the problem for me. I can build C++ projects, it does not throttle to 1GHz. If something changes, I will post it here.

#!/bin/bash
FLAGS=`rdmsr 0x1fc -d`
PROCHOTOFF=$((FLAGS & 0xfffffffe))
wrmsr -a 0x1fc $PROCHOTOFF
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45 Posts

10-24-2017

Germany

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  • Message 44 of 47

Re: X1 Extreme throttling at really bizarre temperatures

2019-03-13, 8:31 AM

I see, using Linux you can overrite it like this. But the mentioned throttlestop option doesn't exist and unchecking in main menu doesn't have an effect. Anyway, I'm happy we both found ways to get the full power back :-)

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5 Posts

11-22-2019

Hong Kong S.A.R of China

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  • Message 45 of 47

Re: X1 Extreme throttling at really bizarre temperatures

2019-11-22, 14:06 PM
Hi,

I'm using a P1 8850H, and I'm having the same issue.

With intelligent cooling, the throttling seems to kick in as low as below 50C. Now I've disabled intelligent cooling, the thermal throttling kicks in at around 60C.

Have you solved your problem already? Could you share with me?

Thanks!
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5 Posts

11-22-2019

Hong Kong S.A.R of China

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  • Message 46 of 47

Re: X1 Extreme throttling at really bizarre temperatures

2019-11-22, 14:07 PM
Hi,

May I know if you've found any solution to this?

Thanks!
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49 Posts

08-11-2017

United States of America

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  • Message 47 of 47

Re: X1 Extreme throttling at really bizarre temperatures

2019-11-22, 17:02 PM

Throttlestop

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