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Fanfold Paper
Posts: 17
Registered: ‎06-02-2011
Location: Finland
Message 71 of 79 (1,475 Views)

Re: L520 - random sleep and constant fan

How's it going with the fix? Any updates?

Bit Torrent
Posts: 632
Registered: ‎10-21-2011
Location: DE
Message 72 of 79 (1,468 Views)

Re: L520 - random sleep and constant fan

There wont be any update until someone send his or her machine in to help Lenovo. If you want to do this, you should contact nine.

Punch Card
Posts: 13
Registered: ‎06-02-2012
Location: Victoria, BC
Message 73 of 79 (1,455 Views)

Re: L520 - random sleep and constant fan

I'm pretty sure Lenovo has received a number of L520's back regarding the fan issue and they have either not yet fully looked into it or found the solution, hence no updates. There's numerous refurbished L520's in the outlet store after all - how many of those sent back because of the fan issue is questionable. Obviously this is not an isolated issue. Mine has it too but I've learned to live with it. Still hoping for that fix, though - hopefully in the form of a BIOS update.

----------------------------------------------------------------------------------------------
X230T 3434-CTO i5-3320/16GB/256GB SSD/W8
L520 7859-CTO i5-2540/8GB/500GB HDD/64GB SSD mSata/W7, W8
And a bunch of other Lenovo stuff here'n there...
Fanfold Paper
Posts: 17
Registered: ‎06-02-2011
Location: Finland
Message 74 of 79 (1,444 Views)

Re: L520 - random sleep and constant fan


ibmthink wrote:

There wont be any update until someone send his or her machine in to help Lenovo. If you want to do this, you should contact nine.


It's not possible me to send the computer to Lenovo. I'm doing this on behalf of my friend and she needs the computer.

 

If Lenovo send a replacement machine, for example L530, we would be able to send the machine.

Paper Tape
Posts: 12
Registered: ‎05-30-2011
Location: Germany
Message 75 of 79 (1,207 Views)

Re: L520 - random sleep and constant fan

I give it up. In the next month I will contact the support to see whether the overheating after standy-by is an issue or not, for me it is even after all firmware updates. I don't want to live anymore with this issue. If that's a known issue to the support, I will return my Thinkpad and get another (non-lenovo) replacement. I am really tired of this issue, not to speak about the fan...

Fanfold Paper
Posts: 17
Registered: ‎06-02-2011
Location: Finland
Message 76 of 79 (1,132 Views)

Re: L520 - random sleep and constant fan

[ Edited ]

 

We are not alone with this:

 

http://forums.lenovo.com/t5/IdeaPad-IdeaTab-Slate-Tablets/Yoga-13-Fan-Noise/td-p/902693

 

http://forums.lenovo.com/t5/IdeaPad-IdeaTab-Slate-Tablets/Yoga-13-Fan-Noise/td-p/902693http://

 

Lenovo is losing credibility due these fan problems. I think you should hire that guy who makes tpfancontrol program. Problem would be solved Smiley Happy You really should open fan control for users and make it customizible through bios. 

Punch Card
Posts: 55
Registered: ‎05-31-2011
Location: DE
Message 77 of 79 (1,109 Views)

Re: L520 - random sleep and constant fan

They even don't need to hire him. All they have to do is to improve their bad programming style of the power driver. Lenovo programmers access the controller device without locking it, so TPFanControl can't recognize any concurrent access.

It's a simple rule for accessing hardware register to aquire a mutex (exclusive access right). Changing this is just a small issue, but Lenovo allways prove that they don't care.

 

Look at this thread, it's quite obvious. They support quite a few devices, but the entry level Lx20 or Lx30 are not amongst them. I'm really fed up with them. My L520 is just 1/2  year old and I'm not able to run Win 8 because of drivers missing and a severe crash when putting the device to sleep. Users reported that Lenovo customer service didn't care about this issue.

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Former Employee
Posts: 2,835
Registered: ‎03-20-2012
Location: Malaysia
Message 78 of 79 (803 Views)

Re: L520 - random sleep and constant fan

Hi Stepinsky,

could you try this update.

http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS013593

it shouldhelps.

regards
Paper Tape
Posts: 1
Registered: ‎12-27-2014
Message 79 of 79 (416 Views)

Re: L520 - random sleep and constant fan

same question, is there bios for better fan control?
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