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Windows 7: PC wakes immediately from sleep...

15 Mar 2010   #1

Windows 7 64-bit
 
 
PC wakes immediately from sleep...

Hi,
I have spent alot of time trying to figure this out and so far i have got no where. When i set my computer to sleep (Windows 7 64bit) the monitor goes into standby mode and then as soon as my computer is about to sleep it wakes up immediately. I have unchecked (Device manager) the adapter card, unchecked the mouse and then unchecked the keyboard from waking up my PC and it still refuses to sleep. When i type the command to find out what is waking my PC in cmd (-lastwake) i find that a USB root controller standard is waking the PC up but in the driver devices the USB roots are are unchecked to wake my PC. Im at a complete loss here, i have no idea whats going on. I thought it might be my Bios waking up the computer as soon as it detects sleep mode but i dont see anything in BIOS to prevent this so i think its a Windows issue.

Anyone have any suggestions or ideas?

My System SpecsSystem Spec
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15 Mar 2010   #2

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

Do you have a usb mouse plugged into your front usb ports?
My System SpecsSystem Spec
15 Mar 2010   #3

Windows 7 64-bit
 
 

No, there is nothing using the front USB ports. I have 3 USB devies in total: Keyboard, wireless mouse, and wired mouse. However i have tried disabling each (by removing the wires) and still no luck.
My System SpecsSystem Spec
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15 Mar 2010   #4

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

Check your bios for a wake-on option. maybe located in the power management menu.
My System SpecsSystem Spec
15 Mar 2010   #5
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

Hello Rezelute,

You might check through the options in the tutoral below to help see what may be waking up your computer. The STEP SIX section is the most common reason though.

Power Options and Sleep Mode Problems - Vista Forums

Hope this helps,
Shawn
My System SpecsSystem Spec
15 Mar 2010   #6

Windows 7 64-bit
 
 

Thank you Brink, I will go through each of the steps 1 at a time when i get back home and post update back to help anyone else.
My System SpecsSystem Spec
15 Mar 2010   #7

Windows 7 64-bit
 
 

I think i might have found the solution to this sleep problem that might help others (havent tested yet but im fairly sure its the culprit): I have an ASUS P5Q SE plus and reading the manual there is something i may have misunderstood, it says under the section USB DEVICE WAKEUP:
"The USB wakeup requires a power supply that can provide 500ma on the +5VSB lead for each USB port..." And then it shows the default jumpers set to +5V (i.e. jumpers on 1 and 2) and not +5VSB (i.e. jumpers on 2 and 3).

I think this maybe the problem since it does look like there is something external other than Windows controlling the sleep function. I am going to test tomorrow morning after i switch the computer off for the night and post back if im right - I will also post back if im wrong so it goes on failblog
My System SpecsSystem Spec
15 Mar 2010   #8

XP Pro SP3 X86 / Win7 Pro X86
 
 

Just a thought... But some time ago I had a computer that simply would not go to sleep for more than 5 seconds at a time. It took a while to find the problem but it was in the Bios... I had enabled the "Wake on Display Activity" function (Asus M2n series)... when the monitor went into standby it was waking the computer back up.

Over time I've taken a policy where I only enable the Bios level wakeup features for the keyboard and mouse. Everything else is off.
My System SpecsSystem Spec
17 Mar 2010   #9

Windows 7 64-bit
 
 

Thanks but i have no such function on my BIOS, i will test the jumper setting soon i think, im just abit lazy at the minute because changing jumper settings means that i have to remove so many components after ive just setup my new PC .
My System SpecsSystem Spec
17 Mar 2010   #10

XP Pro SP3 X86 / Win7 Pro X86
 
 

Quote   Quote: Originally Posted by rezelute View Post
Thanks but i have no such function on my BIOS, i will test the jumper setting soon i think, im just abit lazy at the minute because changing jumper settings means that i have to remove so many components after ive just setup my new PC .
Ahh... ok... lets hope you get it fixed.

Another cause of this problem could be the Computer Browser service, which is responsible for showing you the computers in your Network folder. If you have a home or business network running, with the Computer Browser enabled in more than one machine, they will hold an "election" in which the most capable machine (based largely upon OS versions) is elected to be the browser master. When your machine is browser master it won't sleep until the rest of the network is asleep. That is, it will be the last machine to go to standby mode.

Although you probably want this running if you're running a lan, you could try temporarily disabling the service and see what happens... especially on laptops as they are almost never elected to be the browser master.

Actually there only needs to be one machine running the computer browser service on a given node, since it will provide an up to date DNS list to all machines on the node.
My System SpecsSystem Spec
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