Sleep mode in Win 7

By EDO219 ยท 4 replies
Oct 26, 2010
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  1. Upon finishing my new PC, I decided to let Windows 7 update itself while I take a nap. After a half an hour I returned and rebooted the machine. Much to my horror, the integrated Ethernet had entirely ceased to function! Indeed, device manager no longer showed any LAN devices. Even more puzzling was the error message I received while trying to reinstall my motherboard's integrated LAN drivers:

    "Wait ... what?!", I immediately exclaimed aloud. A few Google searches later, the problem was made quite clear. Apparently, integrated devices on several motherboards tend not to wake up after Windows 7 goes into sleep mode. The precise cause eludes me, yet one easy solution is as follows:

    1. Turn off the PC
    2. Switch off the power switch at the back of the PC if it a desktop. Laptop owners simply unplug the power adapter.
    3. Wait a few minutes while the capacitors lose their charge and the RAM clears.
    4. Turn on the PC and verify that the LAN or whichever device was giving the deep sleep error now works. If not, then you could turn off the PC and remove the RAM for a minute. (Don't forget to touch the PSU before handling the RAM, though!)

    Now that you've fixed the immediate issue, let's prevent it from happening again.

    1. Open up Device Manager
    2. Right click the device which formerly gave the error.
    3. Click on Properties
    4. Click on the Power Management tab.
    5. Un-check the box for the setting "Allow the computer to turn off this device to save power."
    6. Click OK to save your changes.

    Of course, you could simply disable sleep mode entirely. My motherboard is a GIGABYTE X58A UD3R, but I suspect this issue resides amongst other brands as well. If anyone has received this error message and this post fails to resolve the issue, then let us know!
  2. ViNCiLiCiouS

    ViNCiLiCiouS TS Rookie Posts: 30

    Interesting. I have a GA-P55A-UD4P.

    Sleep isn't too important for me (especially since it's a desktop). I believe I disabled it entirely, but this is still very useful. Thanks for the post!
  3. KosBMW

    KosBMW TS Rookie

    I have the same problem and the same MB. Unfortunately the fix didn't work. Any other suggestions?
  4. winterwolf1223

    winterwolf1223 TS Rookie Posts: 55

    Well I think i have short of the same problem. When I put my computer to sleep, and try to wake it back up by hitting a random key, the light turns back solid, screen lights on the power light but the monitor stays black screen. Almost like it cannot wake up from sleep (lazy computer!). So inorder to wake my computer up, I just hold the power button till it turns off and turn it back on again. Now I dont bother putting it on sleep.

    Btw I have Dell Dimension E510 running on Windows 7.
  5. Tnx a lot,it worked

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