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Thread: P67 build - Computer restarts after 'sleep' - how to enable Hibernate?

  1. #1
    svswan is offline Junior Member
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    Default P67 build - Computer restarts after 'sleep' - how to enable Hibernate?

    build the Tom's August $1000 rig, ended up buying a G520 processor to update BIOS and then sold it to a local builder for $10 less than I paid for it - whew -

    P67 mobo, intell 3750, 16 gigs Mushkin black line, older Sapphire HD5870 GPU, W7 Pro 64bit (older MS Multimedia keyboard with latest driver)

    When I put the computer to sleep it will go to sleep, then 3 to 5 seconds later it will restart... Strange. So I thought I would enable Hibernation and use that, but I can not find where to turn it on in the mobo set up.

    Any input on these two items?

    thx -

  2. #2
    parsec's Avatar
    parsec is online now Senior Member
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    Default Re: P67 build - Computer restarts after 'sleep' - how to enable Hibernate?

    Your board won't stay in Sleep because something is waking it up (duh, I know... ) One of the usual causes is USB devices. In Windows Power plan option, select your plan and then click Advanced Option. Find USB in the list and make sure that Selective Suspend is Enabled. You should also check your BIOS to see if you have WOL (Wake On Lan) enabled, since when in Sleep or even Shutdown, the network chip is awake. Even with no Internet activity, the network still "talks" to the network chip.

    If you get Sleep to work, you may next find that waking from Sleep fails. That is common with Intel 6 series chipsets like the P67. My ASUS P67 board refuses to wake from Sleep any longer than about half an hour, a strange issue I've never fixed. Some say it is power supply related, or a bug in the P67 chipset.

    For Hibernate, which is enabled in Windows by default (but can be shut off manually), look in your BIOS for a Deep Sleep setting, or something that you can set to "S4" which is Hibernate. Sleep is S3. When you click the Shutdown options, where Sleep and Logoff is, you should also see Hibernate. Not certain if you won't see it until S4 is enabled, since I don't use Hibernate. You may find an entry for Hibernate in the advanced Power options I mentioned above.

    Hibernate takes the current OS/Desktop state that Sleep stores in RAM, and instead writes it to disk. If you use a SSD for you OS drive, you may not want all those writes on it, which really is not an issue for SSDs anymore.

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