Asrock h97m pro 4 randomly wakes from sleep

Xenphor

Member
Sep 26, 2007
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Does anybody have the ASrock H97m pro 4 and have issues with the computer randomly waking from sleep for no reason? It's happened quite a few times even though the firmware is updated. I noticed on the downloads page for the bios that one update addresses sleep function but it still happens.

This is with pretty much no other processes running in the background and wake from lan disabled.
 

crashtech

Lifer
Jan 4, 2013
10,681
2,277
146
Try disabling "Wake On Magic Packet" in the Advanced Properties tab of the NIC. Even with Wake On LAN disabled in the BIOS, this setting has caused a few PCs I have dealt with to wake unexpectedly when on a LAN with other machines.
 

tcsenter

Lifer
Sep 7, 2001
18,893
544
126
I have 1.40 BIOS with following settings:

STR (S3) = enabled
Deep Sleep = disabled
'Wake by' and PM timers = disabled except for USB Mouse/Keyboard
Hybrid Sleep in Windows power options = enabled

I haven't noticed any problem with it waking on its own. Edit: Windows 7 64-bit SP1
 
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Xenphor

Member
Sep 26, 2007
153
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I ran this command just now after I came home to my computer on to see what woke it up:

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_8CB1&SUBSYS_8CB11849&REV_00\3&11583659&0&A0
Friendly Name:
Description: Intel(R) USB 3.0 eXtensible Host Controller
Manufacturer: Intel(R) Corporation

This implies a USB device woke the computer up even though I obviously didn't touch anything?
 

BonzaiDuck

Lifer
Jun 30, 2004
16,327
1,888
126
I ran this command just now after I came home to my computer on to see what woke it up:

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_8CB1&SUBSYS_8CB11849&REV_00\3&11583659&0&A0
Friendly Name:
Description: Intel(R) USB 3.0 eXtensible Host Controller
Manufacturer: Intel(R) Corporation

This implies a USB device woke the computer up even though I obviously didn't touch anything?

Do you use a battery-backup UPS system, like APC or TrippLite, connected to a USB (possibly USB3?) port?

Check the properties in the Device Manager for the UPS. If the checkbox for "Allow this device to wake the computer" is checked -- uncheck it. If this would leave you vulnerable during a power outage while the computer is asleep, make the system hibernate an hour after it goes to sleep to minimize the window of time when that might happen.

Sometimes, if there is some minor power-glitch that forces the UPS from AC-line to battery for a few seconds, I think the UPS may attempt to wake the computer to shut it down according to the settings in the UPS software.

After that, you might want to tweak the USB nodes in Device Manager for certain parameters that might cause this. I cannot remember them precisely offhand, but I was having trouble with a USB-connected XBOX-360 game-controller, found some indications on other forums, made some tweaks, and that problem "went away." In fact, the tweaks you may want to make might be found in the device-node itself, rather than the USB section.
 
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tcsenter

Lifer
Sep 7, 2001
18,893
544
126
Correction: it appears the BIOS also features settings for 'power on' by device not just 'wake-by'. Little brain glitch there in my recollection of the BIOS options.
 
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Xenphor

Member
Sep 26, 2007
153
0
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I know I could disable wake from sleep with my mouse and keyboard but I actually like that feature unfortunately.