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Shut down and wont turn back on

My Computer Shut off while I was sleeping, and now it wont turn back on. No one could have tampered with it, and there were no viruses on my computer at the time. I tried to reconnect the power cords, clean dust out of the vents, and let it sit with the power switch in the back off. None of these solutions worked, and I need help!

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Re: Shut down and wont turn back on

Need new power suplly they die after 2 3 yrs sumtiems sooner try that 1st

Posted on Jan 27, 2008

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Fan and LED light does not turn off automatically when I go into 'sleep' or hibernation'. Nuisance as I have to totally shut down and then resurrect when I need the computer, and this take such...

I looks like it is only the display which is asleep. If you go into your power or "Energy Saver" on a Mac, set it so the harddrive goes to sleep. The LED might still fade on and off but the fan should stop.
Hope this helps!

Jul 15, 2011 | Operating Systems

4 Answers

Sleep/hibernate mode

Hi, If the computer seem to wake from sleep mode for no reason? Some device settings can cause the computer to return from a power savings state when not expected. If the computer is using an optical mouse, changes in light can cause the computer to wake. Network activity can cause the network hardware to wake the computer, especially when the network is always on (like cable and DSL connections). High Definition Audio audio may also cause the computer to wake from sleep mode. Use the following steps to prevent the these hardware devices from waking the computer:
  1. Click Start c00847244.gif , and then right-click Computer .
  2. Select Properties , and then click Device Manager in the left panel of the window.
  3. Click the plus sign ( + ) next to the device that needs to be adjusted. If you are using an optical mouse, select Mice and other pointing devices . If the computer is using an "always-on" connection, click Network Adapters . To check the high definition audio, click Sound, video, and game controllers .
  4. Double-click the name of the device to open a Properties window.
  5. Click the Power Management tab, and remove the selection from Allow this device to wake the computer . Figure 6: Power management tab for a mouse c00851648.gif NOTE: If you prevent the mouse from being able to wake the comuter, wake the computer using the Sleep button on the keyboard or from the power button on the front of the computer.
  6. Click OK , close the windows that are open, and then restart the computer.
  7. Click Start c00847244.gif , and select the Sleep/Standby button to see the problem still exists: If the problem still exists, go to the next Step.
  8. Disconnect all non-essential connected devices (printers, scanners, USB drives).
  9. Restart the computer with only the original mouse, monitor, and keyboard connected. If this resolves the sleep/standby problem, one of the connected devices was causing the problem. Replace one device and test to see if the problem occurs again. Continue adding devices and testing until the you find the device that is causing the problem.
If you have already tried all the above steps, you can try the steps below: Many software components start up automatically and run without being seen. Most of these programs are not necessary to the work performed on a computer, but can interfere with sleep/standby mode. For troubleshooting purposes use the following steps to prevent programs from starting when Windows is first opened.
  1. Click Start c00847244.gif , and then type msconfig into the Search field and then press the Enter key.
  2. The System Configuration Utility appears. Click the General tab, select Selective startup , and then and remove the check from Load startup items . c00847247.png
  3. Click OK to accept the changes and restart the computer.
  4. After completing these steps, Windows opens using Selective Startup. A small reminder may appear when Windows restarts. Select Don't show this dialog again and click OK to prevent the reminder from re-appearing every time the computer is restarted.
NOTE: To undo the changes made in this process repeat the steps above and replace the checkmark next to Load startup items .
  • If disabling Load startup items did not resolve the suspend problem, go to the next step.
  • If disabling Load startup items resolved the suspend problem, enable one startup item and test to see if the problem occurs again. Continue enabling startup items, until you find the software task that is causing the problem. Remove or update problem software.
If the problem still exists, go to the next Step. Upgrading the BIOS and keyboard software If the sleep button on the keyboard still does not work, go to the HP Software and Driver Download page , enter your computer model number into the field provided, and install any keyboard and BIOS updates for Windows Vista. Should you require any further assistance regarding this issue or any other computer related issue in future please feel free to contact get back to us, we will be more than glad to assist you.


Malik Khan

Feb 01, 2008 | Microsoft Windows Vista Ultimate Edition


Change the Sleep Button on the Start Menu to Shut Down

Want to shut down Vista with one click, instead of sleep.

Open Power Options in Control Panel

On the current plan your computer is running, click change plan settings

It will open Edit Plan Settings, find Change Advanced Power Settings and click on it.

Power Options will open, find the expandable tab that says Power Buttons and Lid, expand it.

Expand the tab that says Start Menu Power Button.

If you are running a laptop there will be two options, one for On Battery and one for Plugged in, click on the word sleep to open a pull down menu.

Click on the arrow, than Shut Down.

Click Apply and than okay. Close all Windows, Shut Down should be on the start menu instead of sleep

on Dec 10, 2007 | Microsoft Windows Vista Ultimate Edition

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When ever i my computer goes to sleep the monitor wont come back on. If i turn the monitor off then on the screen comes on for about 2 seconds then is black. The only way to get it to come on and stay on...

Control panel > Power options > Choose power plan> set to Never turn off display / Never put monitor to sleep
(For Vista... XP similar) Not sure about Win 7, will not be much different

DVD Issues, possibly the media being used, only real way is to try another DVD drive in the tower

Jan 06, 2011 | Operating Systems

1 Answer

I have Windows 7 on my Asus desktop. When shutting down I accidently clicked on Sleep. No I can't wake up my computer. I have tried pushing the moon button on the keyboard and restarting my computer as...

If I were you I would just press and hold the power button on your computer tower until it shut's off and then turn the computer back on. I assume that since you were shutting it down that you had nothing important open, so forcing it to shut down won't hurt anything.

Dec 13, 2010 | Operating Systems

1 Answer

HP Pavillion won't bring monitor back from sleep mode

hi...if u can read " no input signal" from ur screen, this means that ur monitor is ok..
Look if u have power buttons on ur keyboard.. try to wake it from there.. some pc may have shortcut keys to bring back the pc... look @ ur pc docs on the internet for more info...
However if it's a hardware issue, it may be that ur RAM memory needs to be cleaned

Feb 01, 2010 | HP Operating Systems

1 Answer

Shut down laptop, wont come back on, no lights or anything.

Not a good thing to do, I had a client that left for a weekend, had his laptop on the arm of his sofa and came back to find the laptop fried. If you left it on stand by and it was left on a surface that obstructed airflow, it probably overheated and severely damaged your computer.
My client's la[top overheated so badly that it melted the label off the bottom of the computer. He was lucky it didn't cause a fire.
Check for signs of burn marks and smell for burnt components.

Sep 20, 2009 | Operating Systems

2 Answers

Sleep mode wakes up on it's own

turning off all the power saving items does not help this- it just ensures that it doesn't automatically power down your hard drive or shut off power to your monitor automatically when you aren't using it.
May I suggest Hibernation Mode as an alternative? this mode saves everything you are doing to disc and shuts your computer down completely. when you turn it back on, it will restore what you were last doing onto the screen, so you can pick up where you left off.
you can find more information on this and sleep mode from here:


Aug 03, 2009 | Microsoft Windows Vista Home Premium with...

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