10-10-2015 04:18 PM
When I close the lid on my T430, it is set to go into sleep mode. It has done this, as it should, since I purchased it new. All of a sudden, it will remain in sleep mode for a while, but then it wakes on it's own, and I hear it in the middle of the night, or at other times, when it should be in sleep mode..
I have all the network adapters set, "NOT to allow the device to wake the computer". I also have the setting in the Lenovo Power Manager, Global Power Settings, Events, "Enable InstantResume" - NOT checked...........
This seemed to work for others, on other models. Anyone got any ideas on the T430..........Why did this just happen ?
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10-10-2015 10:59 PM
what operating system? Is there anything in the event log?
10-11-2015 12:52 AM
I had the same issue with my T430s. Disabling "wake" for the mouse was not enough. After I disabled "wake" for the keyboard as well, the T430s stayed in sleep mode reliably when the lid was closed.
10-11-2015 06:24 AM
I think that I finally found the solution, after trying every thing else I could find. Late last night, I discovered a well hidden / buried setting, made the obvious change, closed the lid, and watched for a while. After some time, so far, so good, so I turned in for the evening, and this morning, it appears that my T430 remained in sleep mode overnight, much to my amazement. Then, just a short while ago, I found another article addressing just this issue. The author was experiencing the problem on a NetBook, however, the settings, etc were the same.
Here's the setting that I found last night, just as it is referenced in the link below:
Disable Wake Timers:
Windows allows some software wake up the computer at certain times to do different tasks. It somewhat depends on your computer and the software on it, but if you are having this problem - disable the wake timers:
Here's the link which addresses this issure with a NetBook > http://post.ryanoshea.com/post/40027949654/what-to-do-if-your-computer-wakes-itself-up < Hope it helps someone else !
10-11-2015 08:13 AM - edited 10-11-2015 08:14 AM
Instead of disabling wake timers globally, you should look in Task Scheduler and see what is there that is waking up the PC. Change the times to something more convenient.
Another consideration is that some things you might want to be running in the middle of the night. Just see to it that they're set to re-sleep the PC when they finish.
Disabling wake timers will prevent any scheduled tasks from running when the PC is in sleep status.