Computer keeps waking from sleep?

[OverDrive]

Hi all,

My PC (see sig) goes to sleep correctly after 30min (Balanced plan selected in Windows). However, something wakes it up after about 20mins or so. Then it will sleep again after 30mins if untouched and the cycle continues.

I've updated to the latest BIOS and I'm running the latest chipset, storage and network drivers and now the latest Windows 8.1 update.

I have the on board WLAN disabled in device manager, it's connected via Ethernet to my router.

Does anyone have any ideas? Just concerned as each time it wakes up it spools up my 2x mechanical HDDs - This continued cycle of spooling up and sleeping can't be great for them in the long run. My primary drive is a SSD.

Hope someone can advise.
Thank you.

 

[ElliorR]

If you haven't done so already set the ethernet network connection to not be able to wake from sleep. I had this same problem and that solved it for me. If that's not it I'm out of ideas.

 

[Kotu]

Put it to sleep, when it randomly wakes up open up a command prompt and run:

powercfg -lastwake

should tell you what triggered it to wake up.

 

[OverDrive]

Thanks guys, I'll try both of the above. Hopefully will get it sorted.

Update: It looks like it is indeed the network card that keeps waking it, I'll change the settings as above and see if that works.

Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\WINDOWS\system32>powercfg /lastwake
Wake History Count - 1
Wake History [0]
Wake Source Count - 1
Wake Source [0]
Type: Device
Instance Path: PCI\VEN_8086&DEV_1503&SUBSYS_849C1043&REV_04\3&11583659&0&C8
Friendly Name: Intel(R) 82579V Gigabit Network Connection
Description: Intel(R) 82579V Gigabit Network Connection
Manufacturer: Intel

C:\WINDOWS\system32>