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: Why Windows spins up DVD drives when I press sleep button?

09 Jan 2012   #1
avgfk

Windows 7 Ultimate x64
 
 
Why Windows spins up DVD drives when I press sleep button?

Hi,

When I press Sleep button, I expect Windows to get into sleep mode at once.
But why Windows spins up CD/DVD drive?

This is very annoying, since I am putting my laptop to sleep mode several times a day.

Thank in advance for any help.
avgfk


My System SpecsSystem Spec
.

09 Jan 2012   #2
netbox

Win7 Pro SP1 x64
 
 

does your CD/DVD Drive has a disk loaded?

if there is; try removing the disk inside your cd/dvd drive and put your laptop to sleep.
just a thought
My System SpecsSystem Spec
09 Jan 2012   #3
avgfk

Windows 7 Ultimate x64
 
 

Yes, there is a disk. And the drive won't spin up if there is no disk. But that does not explain why Windows needs to spin it up before it can go to sleep mode.

Thanks
avgfk
My System SpecsSystem Spec
.


09 Jan 2012   #4
badger906

Windows 7 Ultimate x64, & Mac OS X 10.9.2
 
 

When asleep windows is suspended in its current state, so I'd assume spinning the disk would be part of the data collection process, so its just analysing that there is a disk in the drive.

My System SpecsSystem Spec
09 Jan 2012   #5
seavixen32

Windows 7 Ultimate SP1 64-Bit
 
 

Is there any particular reason why you leave a disc in the drive?

If you remove it when you've finished with it there'll be no need for the drive to spin prior to entering Sleep.
My System SpecsSystem Spec
09 Jan 2012   #6
avgfk

Windows 7 Ultimate x64
 
 

Well, system obviously knows whether there is a disk in the drive or not, since when there is none, the drive won't spin up and system goes to sleep at once.

I understand systems wants to update the information what kind of discs are inserted/attached after wake up, but I don't get a point of collecting fresh info when getting to sleep.

Nevertheless, is there a way how to switch this feature off? (Else than ejecting the disk before I press the sleep button..)

Thanks
My System SpecsSystem Spec
09 Jan 2012   #7
logicearth

Windows 10 Pro (x64)
 
 

The disk spinning up is a sad side affect of the disk drive being part of the I/O bus. The I/O needs to be accessed and requires all devices to save their buffers and switch off. Its not something Windows does, it is the drive itself. So no, their is no switch in Windows because its not a feature, its a requirement.

Just to be clear, it is a behavior of the drive itself, not Windows.
My System SpecsSystem Spec
09 Jan 2012   #8
CreepinJesus

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by logicearth View Post
The disk spinning up is a sad side affect of the disk drive being part of the I/O bus. The I/O needs to be accessed and requires all devices to save their buffers and switch off. Its not something Windows does, it is the drive itself. So no, their is no switch in Windows because its not a feature, its a requirement.

Just to be clear, it is a behavior of the drive itself, not Windows.
It also spins up any hard drives that are currently 'sleeping', as I've noticed on my HTPC every time it goes to sleep.
My System SpecsSystem Spec
09 Jan 2012   #9
logicearth

Windows 10 Pro (x64)
 
 

Quote   Quote: Originally Posted by CreepinJesus View Post
It also spins up any hard drives that are currently 'sleeping', as I've noticed on my HTPC every time it goes to sleep.
Aye, the behavior is purely hardware. Windows itself sends it commands to the I/O Controller (aka., Southbridge) that the computer is sleeping. The controller sends the necessary commands to flush and shutdown, down all active lines. The drives when they receive the message process it and then begin the phase of writing the buffers, sending the OK response and shutting down. Those that are already asleep, like HDD and DVD drives, they are just dumb, plan and simple. Requiring a full spin up just to send OK and go back to sleep. Not a fault of Windows. Hope that helps one to understand the situation.
My System SpecsSystem Spec
09 Jan 2012   #10
seavixen32

Windows 7 Ultimate SP1 64-Bit
 
 

Quote   Quote: Originally Posted by avgfk View Post
Well, system obviously knows whether there is a disk in the drive or not, since when there is none, the drive won't spin up and system goes to sleep at once.

I understand systems wants to update the information what kind of discs are inserted/attached after wake up, but I don't get a point of collecting fresh info when getting to sleep.

Nevertheless, is there a way how to switch this feature off? (Else than ejecting the disk before I press the sleep button..)

Thanks
I have to ask once again, why do you need to keep a disc in the drive?

As you've said yourself, the problem does not exist if there is no disc in the drive.
My System SpecsSystem Spec
Reply

 Why Windows spins up DVD drives when I press sleep button?




Thread Tools





Similar help and support threads
Thread Forum
spins floppy disk (& possibly accessses other drives) every 60 minutes
Symptoms: Since the installation of W7 a few weeks ago, once every 60 minutes (but not at the same time each day) something spins the floppy drive. Also, sometimes another data drive that spins down with inactivity is started up as well, so it could be that all of the drives (4) are briefly...
Hardware & Devices
My Monitor is not showing anything when i press the start button
after i was trying to upgrade from windows 7 to windows 8 i restarted my computer to try to upgrade it then when i pressed on the start button nothing showed up ( the screen was black ) and i usually get a "beep" when the computer turns on but this time i didnt ( i can hear the fan is on ). And i...
Installation & Setup
Windows snaps away sometimes when I press on the Caps Lock button
It happens in all the programs that I use, even when I'm renaming a file. For example, when I'm typing this post, or on Microsoft Word, or Notepad, and when I press on the Caps Lock button sometimes to change between capital letters and lower case, the "focus" (or whatever the technical term is),...
General Discussion
Simultaneous mouse button press unrecognized.
I have two new Windows 7 computers (laptops) that I run 3D design software on. I have multiple programs that utilize a simultaneous pressing of both left and right mouse buttons (not double-click). This command goes unrecognized in my software and is used extensively to go into 3d rotational...
Hardware & Devices
Recording live TV only records from time of button press
As a long Time Warner Cable customer, I've gotten used to how their DVR boxes work (and am very glad to be off of them now). One very common thing I would do is start watching a show, and mid way through it decide I want to record it and watch it later. The nice thing was that the recording would...
Media Center
CPU fan spins up during sleep...
Hi! Like the title suggests, my CPU fan goes into overdrive once W7 puts the computer in sleep mode. When I hit a key to bring the computer back, the fan spins down again. Anyone else who experienced this? Does this suggest that something is taxing the CPU when the computer goes into sleep...
Hardware & Devices

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 12:12.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App