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53 Posts

07-21-2011

Russia

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Re: X220 cpu throttling problem

2011-07-26, 8:14 AM

 

erik,

specifically what application and/or process did you use to create this "normal (not synthetic) heavy compute load"? 

 

i am not JNavas but i will ry to answer :)

 

i have an RV5 machine with i5 and i have this isssue.

 

i getting throtling issue every time i run these application

 

EA Need For Speed Pro Street game 

EA Need For Speed Shift game

Test Drive Unlimited 1, 2 games

Sid Mayers Civilization V game

 

this is not syntetic apps and don't make a stress load.

CPU load never reach more than 60%. Although GPU loaded heavilly i guess.

 

i even don't need run HWiNFo or CPU-Z to feel throtling.

it looks like game run smooth for 5-6 seconds with good 30-35 frames per second, then dramatically drop down to 7-8 frames per second for a 3-4 sec. Then back to normal state a run smooth again for short period of time like 5-6 sec.

it makes procccess unplayable. When i monitoring to see why it happens i notice that freq for CPU/GPU drop down to 800/650 and then get back to normal state. 

 

Again, this is not stress. CPU never reach more than 60% and most time loaded about 40-60%.

 

i don't have this issue with 90W adapter at all.

 

also a couple words about x220 cooling system. its good. Not excelent but good. I using TPFanControl software to run cooler at 5200 rpm. And usualy temperature under games load is about 77-81C.

 

 

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53 Posts

07-21-2011

Russia

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Re: X220 cpu throttling problem

2011-07-26, 8:22 AM

Mark_Lenovo, thanks for your replies

 

as you said 

 

So far as I know thermals aren't the reason for the throttling we are seeing - these are a power budget issue.

 

This is correct. I just only want take attention that when you using 65W adapter this happens not only under stress load.

 

See my post above. You getting a throtling issue instantly when you run one of these games i listed above.

 

And loads is far away from stress values.

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18 Posts

06-19-2011

Singapore

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Re: X220 cpu throttling problem

2011-07-26, 12:36 PM
so the BIOS 1.19 fixes the throttling problem ?
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32 Posts

06-03-2011

UK

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Re: X220 cpu throttling problem

2011-07-26, 13:00 PM

 


wrote:
so the BIOS 1.19 fixes the throttling problem ?

Nope, it is said to fix the "perma" throttling issue, so the case of when the CPU throttles back to minimum speed it might get stuck there even when not stressing the system anymore. The general throttling issue is still being worked on (see posts from Lenovo staff a couple of pages back).

 

Gundy 

X220 4286 CTO, i7-2620M, 8GB RAM (2x4), 320GB HDD+Intel mSATA 80 GB, IPS display, BT 3.0, Intel 6205 WiFi, Finger Print Reader, Win7 Pro 64
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5884 Posts

11-24-2007

United States of America

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Re: X220 cpu throttling problem

2011-07-26, 13:10 PM

wrote:

1. I've already posted more hard data than most other participants here.

2. What I've already posted is sufficient.

3. I generally don't waste much time on rude and/or demanding responses.


please understand that you made a new claim yesterday in your post here saying, "I've now seen CPU throttling under normal (not synthetic) heavy CPU load and without heavy GPU load that's so severe that I've changed my position on this issue."

 

all i'm asking is that you provide the process you used to reach your findings in yesterday's statement.   this is necessary for research.   the video and screenshot have no value without context.   i'm sure you understand this.

ThinkStation P700      ThinkPad X1C7

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769 Posts

08-07-2010

United States of America

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Re: X220 cpu throttling problem

2011-07-26, 17:02 PM
What Power Plan are you using in Power Manager? Maximum Performance (unmodified), or something else? Thanks.

wrote:

 

erik,

specifically what application and/or process did you use to create this "normal (not synthetic) heavy compute load"? 

 

i am not JNavas but i will ry to answer :)

 

i have an RV5 machine with i5 and i have this isssue.

 

i getting throtling issue every time i run these application

 

EA Need For Speed Pro Street game 

EA Need For Speed Shift game

Test Drive Unlimited 1, 2 games

Sid Mayers Civilization V game

 

this is not syntetic apps and don't make a stress load.

CPU load never reach more than 60%. Although GPU loaded heavilly i guess.

 

i even don't need run HWiNFo or CPU-Z to feel throtling.

it looks like game run smooth for 5-6 seconds with good 30-35 frames per second, then dramatically drop down to 7-8 frames per second for a 3-4 sec. Then back to normal state a run smooth again for short period of time like 5-6 sec.

it makes procccess unplayable. When i monitoring to see why it happens i notice that freq for CPU/GPU drop down to 800/650 and then get back to normal state. 

 

Again, this is not stress. CPU never reach more than 60% and most time loaded about 40-60%.

 

i don't have this issue with 90W adapter at all.

 

also a couple words about x220 cooling system. its good. Not excelent but good. I using TPFanControl software to run cooler at 5200 rpm. And usualy temperature under games load is about 77-81C.

 

 


 

John   [tips]   ThinkPad T470p:
Win8.1Pro64 | i7-7820HQ | 32GB | 512GB SSD | WQHD | AC | BT | Cam | FR
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53 Posts

07-21-2011

Russia

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Re: X220 cpu throttling problem

2011-07-26, 17:08 PM

 

I using "Maximum performance" all the time. Settings for this plan not changed.

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236 Posts

05-09-2010

Cochrane

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Re: X220 cpu throttling problem

2011-07-27, 7:01 AM

I asked the programmer of CPU-Z to explain what his program is reporting and here is his reply.

 

[QUOTE=cpuz;4571680]Of course I admit that CPU-Z is not accurate anymore at idle on latest Intel generations, that is why TMonitor was developped.[/quote]

 

The programmer of CPU-Z has decided to modify the raw data for consistent validation purposes when these CPUs are lightly loaded.  That's fine but you can't depend on it to accurately show the throttling problems that many laptops have.  TMonitor modifies the multiplier data based on CPU load so it is also not suitable to accurately report CPU multiplier throttling. 

 

RealTemp and ThrottleStop both follow the Intel recommended monitoring method as outlined in their November 2008 Turbo White Paper.  Both programs have a Log File option so you can log your CPU's performance in real time.

 

RealTemp 3.67

http://www.mediafire.com/?jibd769x6z7n0c8

 

ThrottleStop 3.00

www.techinferno.com/downloads/?did=1

 

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769 Posts

08-07-2010

United States of America

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Re: X220 cpu throttling problem

2011-07-28, 5:28 AM

wrote:

I asked the programmer of CPU-Z to explain what his program is reporting and here is his reply.

[QUOTE=cpuz;4571680]Of course I admit that CPU-Z is not accurate anymore at idle on latest Intel generations, that is why TMonitor was developped.[/quote]

The programmer of CPU-Z has decided to modify the raw data for consistent validation purposes when these CPUs are lightly loaded.  That's fine but you can't depend on it to accurately show the throttling problems that many laptops have.  TMonitor modifies the multiplier data based on CPU load so it is also not suitable to accurately report CPU multiplier throttling. 

RealTemp and ThrottleStop both follow the Intel recommended monitoring method as outlined in their November 2008 Turbo White Paper.  Both programs have a Log File option so you can log your CPU's performance in real time.

RealTemp 3.67

http://www.mediafire.com/?jibd769x6z7n0c8

ThrottleStop 3.00

www.techinferno.com/downloads/?did=1


CPU-Z nonetheless shows the effects of CPU throttling, as evidenced by the video I posted.

Extreme precision is not needed.

Windows Performance Monitor can be used to observe CPU throttling as well, also to log it.

John   [tips]   ThinkPad T470p:
Win8.1Pro64 | i7-7820HQ | 32GB | 512GB SSD | WQHD | AC | BT | Cam | FR
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6 Posts

06-22-2011

Atlanta

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Re: X220 cpu throttling problem

2011-07-28, 18:00 PM

@ John,

I watched your video. But that doesn't tell anything because the same video can be made by loading applications up manually. The video should show that CPUs are constantly being stressed while the clock speed goes up and down at the same time. I don't think your video by itself can be an evidence of throttling.

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