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17 Posts

06-27-2011

Germany

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Re: X220 cpu throttling problem

2011-07-06, 7:38 AM

JameZ,

 

as you can see from many posts here, as well as from the other thread there is a huge problem with the touchpad (and a minor one with the trackpoint) when one uses the 90W ultraslim travel adapter. It does not appear using the regular 90W adapater.

 

When using the ultraslim the touchpad is nearly unusable as it becomes very jumpy. Having tested it extensively as I didn't know in the beginning where it comes from it happens with EVERY possible setting in the touchpad control, it happens with trackpoint on and off (when switching off in BIOS and when switching off using the FN+F8 combo). The problem seems to be that it is not constantly powered. I got to this assumption as it registers a lot of clicks while moving the finger. It seems that (at a high frequency) the touchpad is turned on and off resulting in movement of only a few inches then stopping, moving again, stopping, etc. while clicking all the time during this process. The trackpoint itself is usable but becomes also less responsive and laggy. I assume that both suffer this on/off problem (maybe with the current frequency?) but as the trackpoint is physically "moved" or "bend" it still registers the movement as it should be. On the other side the touchpad only registers the difference of positions of the fingers and translates it into a movement. Now when it is constantly switched on/off it does only register single touches resulting in the interpretation of clicks.

 

Furthermore together with this I have cleary audible (even in an office from some meters away) humming/clicking noises from the ultraslim adapter itself. First i thought I had a defective unit and got it exchanged two times, but it happened with all three of them. I think it is related to the touchpad problem as well as to the general power supply problem. I think so, as these problems (noise, touchpad, etc.) disappear when the Laptop is used with full CPU and GPU speed, e.g. when trying to get it into throtteling or in general when using it for heavy load tasks. So while the x220 does not work on a 65W under heavy load it does not work correctly with the 90W ultraslim under normal/low load (using a mouse is no problem), but therefore the laptop behaves perfectly fine under heavy load using the ultraslim.

 

That was also one of my questions in my first post in this thread: Is it normal that the ultraslim is rather noisy (especially as I've encountered this problem with three different adapters) or is it related to the power supply problem?

 

Best regards

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3538 Posts

07-12-2010

Malaysia

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Re: X220 cpu throttling problem

2011-07-06, 7:49 AM
@MaBa,

Yes I am aware of the 90w slim adapter issue on the X220 and that has been escalated to engineering. They have tested it and they found the same issue with their test machines as well.

They are currently doing further test on the laptop and am pending their updates on it as well.

I will post once I got an update from the team.

//JameZ
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29 Posts

07-05-2011

spain

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  • Message 383 of 727

Re: X220 cpu throttling problem

2011-07-06, 9:11 AM

so as I have to buy a 90W AC adpater....

 

Is there any difference between the slim and ultraslim?

 

the problems are for both, or only for the ultra slim?

 

thanks for sharing...

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575 Posts

03-20-2011

Canada

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Re: X220 cpu throttling problem

2011-07-06, 13:14 PM

wrote:

In your test though you are only stressing out the CPU as your GPU speed is always at 650Mhz. The problem is when you stress out the CPU and GPU (ie push the GPU to 1300Mhz) or at least higher than 650Mhz anyway.


What software can I use to stress both the CPU & GPU, while remaining in windowed mode so I can see the hwinfo display?

---------------------
| X220 i7-2620M | 12.5" HD IPS | Intel 180GB SSD | Crucial 480GB mSATA SSD | 8GB DDR3 | Intel 7260 AC |
| X260 i7-6600U | 12.5" FHD IPS | Samsung 860Pro 512GB SSD | 16GB DDR4 | Intel 8260 AC |
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17 Posts

05-13-2011

United States

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Re: X220 cpu throttling problem

2011-07-06, 15:14 PM
OCCT is what most people have been using, I believe, HiVolt.
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575 Posts

03-20-2011

Canada

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Re: X220 cpu throttling problem

2011-07-06, 16:02 PM
Thank you, I'll try it at home later.
---------------------
| X220 i7-2620M | 12.5" HD IPS | Intel 180GB SSD | Crucial 480GB mSATA SSD | 8GB DDR3 | Intel 7260 AC |
| X260 i7-6600U | 12.5" FHD IPS | Samsung 860Pro 512GB SSD | 16GB DDR4 | Intel 8260 AC |
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3 Posts

06-24-2011

Philaedlphia

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Re: X220 cpu throttling problem

2011-07-06, 19:52 PM

JameZ

If the 90W adapter is the right adapter to use to prevent throttling, why wasn't it the default one to be shipped? So I need to buy an extra adapter so the laptop does what its advertised to do? Is it possible to ship the 65W in in exchange for a 90W adapter, I think this will make a lot of people happy if it is the solution. 

Thanks

 

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575 Posts

03-20-2011

Canada

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Re: X220 cpu throttling problem

2011-07-06, 22:21 PM

What version of OCCT should I use? I downloaded version 3.1.0 (latest I could find) and it tells me that my DirectX 9 is out of date (doesnt Win7 come with DX11?) and that this GPU does not support CUDA.

---------------------
| X220 i7-2620M | 12.5" HD IPS | Intel 180GB SSD | Crucial 480GB mSATA SSD | 8GB DDR3 | Intel 7260 AC |
| X260 i7-6600U | 12.5" FHD IPS | Samsung 860Pro 512GB SSD | 16GB DDR4 | Intel 8260 AC |
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17 Posts

05-13-2011

United States

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Re: X220 cpu throttling problem

2011-07-06, 22:23 PM
Google DX9 and download and install it.
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575 Posts

03-20-2011

Canada

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Re: X220 cpu throttling problem

2011-07-06, 22:30 PM

wrote:
Google DX9 and download and install it.

Seriously, DX9 for Windows 7?

 

Edit: yup, you're right... I just thought that whatever comes with Win7 would support the older versions too

---------------------
| X220 i7-2620M | 12.5" HD IPS | Intel 180GB SSD | Crucial 480GB mSATA SSD | 8GB DDR3 | Intel 7260 AC |
| X260 i7-6600U | 12.5" FHD IPS | Samsung 860Pro 512GB SSD | 16GB DDR4 | Intel 8260 AC |
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