05-11-2017 05:06 AM
Sometimes after resuming from sleep the fan on my Z510 does not start back up and then gets to the point of almost overheating. This has only been happening for a couple of months and quite possibly from after upgrading some or all of the Lenovo software. The fan will fun perfectly if the lappy doesn't go to sleep.
When the fan has stopped after a resume from sleep, a restart will not fix the problem, it has to be a shutdown and start up. I am guessing the restart doesn't cure the problem due to the 'fast restart' option and this sort of fits in with my theory of it being software not hardware related.
Having spoken to Lenovo tech support they say it is the fan thats the problem as there are no reports of similar problems, however, I'm not at all convinced as it works all other times with no problem excet when resuming from sleep. I have ordered a new fan, just in case but I'm wondering if anyone else is having a similar problem?
I decided to remove the Energy management software and do some testing and this seems to be working, fan works fine after sleep resume so far.
Has anyone else had this problem? or does anyone have any thoughts as to any other possible cause so I can eliminate everything before opening the lappy up and replacing the fan?
Z510 I7 Quad core
05-12-2017 03:42 AM
Thanks for using the Lenovo forums.
Sounds rather strange indeed, Try to download Chipset drivers for the unit from the support page.
Make sure to reboot after an update on the unit.
Also, try a static discharge for this, it may help to resolve the issue or at least get rid of any built up static on the motherboard.
(If the battery is internal, please just skip the remove/replace battery steps.)
1. Turn the unit off
2. Remove the battery and the Mains adapter
3. Press and hold the front power button for 30 seconds
4. Replace the battery and the Mains adapter
5. Turn the unit on as normal
See if these can be of any help at all.
Hope this helps, let us know how you get on.
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05-15-2017 12:59 PM
Thanks for the response.
I did a full update of drivers a few months back, maybe a little longer, and they are all current, I am almost convinced that it was at that point I updated the Energy manager as I recall something different about it. From then on I have had this random fan problem.
I will say that my lappy runs 24/7 for the most part playing a game and it only gets powered down weekly to clean the fan out with a vacum, something I have done since new and for 3 1/2 years. There are now times when I don't have the game running but keep the lappy running and this is when it sleeps and upon resume sometimes there is no fan.
I have done a lot of testing over the last few days and have not been able to replicate the problem at all. The lappy resumes from sleep and the fan runs just fine. The fan speeds up and slows down as expected with cpu loading. The only thing that has changed is the removal of the Energy management software.
In fact, while monitoring the core temp also now I notice a decrease in temp after removing the Energy management software by 5 to 10 degrees while running my game!
I can only attribute the fan problem to the Energy management software.