Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: PC does not SLEEP, what can i do?

05 Mar 2014   #1

Windows 7 Ultimate x64
PC does not SLEEP, what can i do?

Like title PC doesn't sleep. It goes into sleep mode and immediately wakes itself up without me provoking it.
Its been very annoying lately as I've been trying to find the cause and a fix.
PC is custom built running WIN 7 x64, with a water cooler. I've disabled the option to allow any USB devices to wake computer, as well as Mice, Keyboard, and Internet via Device manager.

I've narrowed down the cause to be the Water cooler, its powered through a USB that connects to the back of the PC. once i disconnect it the computer finally sleeps and stays asleep
how can i fix this and allow the pc to fall alseep? +1,000 Internetz points to anyone that can help me

My System SpecsSystem Spec
05 Mar 2014   #2

Windows 7 Home Premium 64-bit

My System SpecsSystem Spec
06 Mar 2014   #3

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1

Can you find a USB device under "USB Serial Device Controllers" in Device Manager that you know is the water cooler?

One way to find it would be to look at all the devices listed with the cooler disconnected from the USB port and then see what pops up when you plug it in or out.

If you find it, see if there is a setting to keep it from waking the PC there.

Corsair systems plug into one of the USB 2.0 blocks on the motherboard. Are you saying that yours plugs into a normal USB port on the back on the PC - the wire comes out of the case?
Good to know the Brand & Model of that unit.
My System SpecsSystem Spec


 PC does not SLEEP, what can i do?

Thread Tools

Similar help and support threads
Thread Forum
create sleep task, to force sleep over a program ?
Hello, I would like to know how to create a task in task scheduler , that'll force the computer into sleep over a running program. Basically, I have some software that runs in the background called 'WD anywhere backup' and when this software is running it prevents the computer from...
General Discussion
BSOD - Won't sleep or crashes during sleep on Dell Latitude 6430u
Hi, I have a Dell Latitude 6430u running windows 7 64. When I first got it I worked through many BSOD issues and it was running fine for many many months. Now recently it started not sleeping, waking up by itself during sleep and waking up from sleep with an unexpected crash message. Any and...
BSOD Help and Support
GA-EP35-DS3L sleep and KVM switch wakes comp from sleep
Hi All, I have two systems a N650SLI-DS4 and a GA-EP35-DS3L hooked up to a Trednet KVM switch. If I put the GA-EP35-DS3L to sleep and switch to the N650SLI-DS4, the GA-EP35-DS3L system wakes up. The only way I have been able to keep it in sleep is if I hold the switch for the N650SLI-DS4 while...
General Discussion
Slow resume from sleep if sleep for long time
I currently run win7 ultimate 64bit, 8gig ram, intel i7-2600k cpu, and my OS runs on an OCZ SSD (all specs are in my profile) Sleep mode is set to S3 in BIOS, I have hibernation disabled (so no hibernation.sys file on my c drive) When I put my computer to sleep then immediately wake it up,...
Performance & Maintenance
Sleep doesn't sleep anymore - just goes to login screen
For some reason, my 'sleep' has stopped working - either from the sleep button, or on the Start button option. Now it just goes to the user login screen. Has always worked perefctly until today. Weird. Any ideas?
General Discussion

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 09:51.
Twitter Facebook Google+