Welcome to our peer-to-peer forums, where owners help owners. Need help now? Visit eSupport here.

English Community

ThinkPad NotebooksThinkPad: X Series Laptops
All Forum Topics
Options

78 Posts

05-15-2011

USA

991 Signins

1823 Page Views

  • Posts: 78
  • Registered: ‎05-15-2011
  • Location: USA
  • Views: 1823
  • Message 51 of 727

Re: X220 cpu throttling problem

2011-05-25, 20:40 PM

mello,

 

I am horribly displeased to report that yes, I just now experienced precisely the same situation that petrov reports about the CPU permanently downclocking until a cold reboot.  Temperature clearly has nothing to do with this; that is, unless somehow ALL of the temp sensors in the system are incorrect.

 

This still occurs following a manual driver update of the Intel HD Graphics to 2361.

 

This is very disturbing.  I certainly hope a solution is possible, as if it is not, there is no way I can keep this system (and I'm certain my two customers who just purchased will also wish to return theirs, as they are both gamers).

Owner/Technology Specialist
Triple-S Computers - http://www.TripleSComputers.com
Reply
Options

56 Posts

05-12-2011

USA

68 Signins

402 Page Views

  • Posts: 56
  • Registered: ‎05-12-2011
  • Location: USA
  • Views: 402
  • Message 52 of 727

Re: X220 cpu throttling problem

2011-05-25, 21:55 PM

JameZ, I have already sent you a PM, regarding this issue.  Everyone else...

 

I am now able to confirm the throttling issue. I have the i7. The easiest way to reproduce the issue is to start by running furmark. In hwinfo32, your gpu will clock to 1300mhz. Then, start intelburntest. Your cpu will now drop to 800mhz, and your gpu clock to 650. 


At this point, your cpu and gpu will be stuck. Easy way to fix it is to go into lenovo power manager (Advanced), and switch the System Performance to Balanced, then back to whatever it was before (mine is on maximum turbo).

Reply
Options

17 Posts

05-13-2011

United States

229 Signins

448 Page Views

  • Posts: 17
  • Registered: ‎05-13-2011
  • Location: United States
  • Views: 448
  • Message 53 of 727

Re: X220 cpu throttling problem

2011-05-25, 22:12 PM

Atomicminded, how long does that fix last for? Does it rethrottle after a certain time? (I'd test it myself, but mine is currently at the Lenovo depot getting repaired for other reasons...)

Reply
Options

40 Posts

05-25-2011

Davis, CA

366 Signins

1189 Page Views

  • Posts: 40
  • Registered: ‎05-25-2011
  • Location: Davis, CA
  • Views: 1189
  • Message 54 of 727

Re: X220 cpu throttling problem

2011-05-25, 22:38 PM

Edit: I have an x220 tablet with an i7-2620m.

 

So I've reproduced this throttling problem twice now.

 

The first time, I just went and turned on the Lenovo Turbo+ option in the power manager BEFORE the test.

After running OCCT for about 2 minutes, I got throttled down to 800/650 until I performed a cold boot.

 

The second time, I did NOT have Turbo+ on. I ran OCCT for around 5 minutes with no problems. Several times I saw my CPU and GPU clock down to 800/650, but when I clicked around (shifted window focus) it immediately jumped back up to 3200/1300. I repeated this several times to make sure that that throttling did not stick. During this test, I went and opened the power options panel and clicked the Turbo+ icon. Right after doing so, I got perma-clocked down to 800/650.

 

Hope this helps.

Reply
Options

5884 Posts

11-24-2007

United States of America

12810 Signins

291275 Page Views

  • Posts: 5884
  • Registered: ‎11-24-2007
  • Location: United States of America
  • Views: 291275
  • Message 55 of 727

Re: X220 cpu throttling problem

2011-05-26, 1:01 AM

i just made 10 consecutive runs of cinebench R11.5 for both openGL and CPU (10 runs each) and can't get my i5-2520m X220 to throttle whatsoever.   it just keeps running bench after bench without complaint.

 

hwinfo32 reports full clock speed on both the CPU and GPU, including occassional blips of turbo boost.   CPU core temps got up to a max of 88°C.

 

whether this is limited to the i7-2620m, i don't know.   so far i haven't been able to find any issues with my i5 except that it's clearly not a workstation-class processor or GPU.   it gets a paltry 10.74 FPS in cinebench, compared to the ~45 FPS i get with the FX4800 in my thinkstation D10.   CPU rendering is 4X slower too at 2.77 vs. 9.21 in the D10 with dual quad-core 3GHz xeon E5450 procs.

ThinkStation P700      ThinkPad X1C7

Reply
Options

78 Posts

05-15-2011

USA

991 Signins

1823 Page Views

  • Posts: 78
  • Registered: ‎05-15-2011
  • Location: USA
  • Views: 1823
  • Message 56 of 727

Re: X220 cpu throttling problem

2011-05-26, 1:18 AM

erik,

 

Yep, from preliminary reports, this most certainly seems to be an issue isolated to the i7-2620M X220s.  Problem is, the i7 cost quite a lot more, and the performance benefit was the reason we upgraded to it!

 

I sincerely hope a simple fix is possible here.  I plan on giving it a few days and if we don't hear anything, I might be reluctantly filing for three laptop returns... :-(

 

-Steve

Owner/Technology Specialist
Triple-S Computers - http://www.TripleSComputers.com
Reply
Options

84 Posts

10-15-2008

Edmonton, Alberta, Canada

795 Signins

1379 Page Views

  • Posts: 84
  • Registered: ‎10-15-2008
  • Location: Edmonton, Alberta, Canada
  • Views: 1379
  • Message 57 of 727

Re: X220 cpu throttling problem

2011-05-26, 1:25 AM

This is a very interesting point mellospace. I wonder if anybody who is seeing this problem can using linux and see if throttling occurs. As running OSX is not feasible on a thinkpad (while complying with relevant laws) linux is an obvious alternative.

This will indicate that it is an OS and not a hardware issue as I suspect.

Reply
Options

55 Posts

05-24-2011

New York City

342 Signins

1403 Page Views

  • Posts: 55
  • Registered: ‎05-24-2011
  • Location: New York City
  • Views: 1403
  • Message 58 of 727

Re: X220 cpu throttling problem

2011-05-26, 1:35 AM

Yeah, a lot going on in the owners thread page  92-93...go there and read more now.

Reply
Options

78 Posts

05-15-2011

USA

991 Signins

1823 Page Views

  • Posts: 78
  • Registered: ‎05-15-2011
  • Location: USA
  • Views: 1823
  • Message 59 of 727

Re: X220 cpu throttling problem

2011-05-26, 3:51 AM

To all involved (including any Lenovo engineers investigating the source of this problem):

 

The behavior greatly subsides on my machine when I am running on battery power with NO AC adapter attached.  This makes me wonder if it is somehow also related to the problems with the 90W UltraSlim and erratic touchpad (or if the two issues are merely coincidence that somehow both seem to be related to the AC adapter's influence on the system's operation).

Owner/Technology Specialist
Triple-S Computers - http://www.TripleSComputers.com
Reply
Options

46 Posts

05-21-2011

UK

936 Signins

865 Page Views

  • Posts: 46
  • Registered: ‎05-21-2011
  • Location: UK
  • Views: 865
  • Message 60 of 727

Re: X220 cpu throttling problem

2011-05-26, 5:54 AM
OtherSteve - well observed re battery vs AC!

I observe the same thing, the throttling was vastly reduced under battery (Max Performance power profile). As soon as I plugged the AC in, the throttling kicked in and went to semi-permanent mode.

Gives me some small glimmer of hope its rectifiable...??

Petrov.
Reply
Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop
X

Save

X

Delete

X

No, I don’t want to share ideas Yes, I agree to these terms