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When I turn on my computer the light on the on button is flshing. my screen is black.The power to my screen is on.

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Make sure your memory sticks are in the right place and in all the way,

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Hp pavilion dv7-4165dx black screen


A blacked-out screen doesn't necessarily indicate a broken monitor.
If the computer has run out of charge or is in hibernation or sleep mode,


if the screen is too dark, or if the display cable has come disconnected from the motherboard, the screen may appear black or fail to turn on.


To fix a blacked-out laptop screen, troubleshoot the screen settings, check the LCD connector and see if the computer is awake and receiving power.


Touch the touchpad or move the external mouse to see if the computer is asleep or hibernating. If the computer fails to respond, press "Enter" on the keyboard.


Press the power button if the screen remains black.

Confirm that the power indicator light, found at the front of the computer or above the keyboard, is glowing solid green or blue.


Confirm that the power adapter is plugged into the computer and into a wall outlet. Confirm that battery indicator light is glowing solid green or blue.


Hold down the "Fn" key. Press the up-arrow to see if the screen brightness increases.
Some computers also use the "F6" or "F7" keys to increase screen brightness.


Hold down the power button for 10 seconds to turn off the laptop.
Remove the AC adapter from the computer, close the screen, and then turn the PC over.


Slide the battery latch to eject the battery. Pull the battery out of its compartment.


Turn the computer back over, open the lid, and insert the edge of a flathead screwdriver or other flat, solid object beneath the bezel above the keyboard.


Wedge the edge of the keyboard bezel off of the top cover.
Work your way along the edge of the keyboard bezel to loosen it.
Pull the bezel off the laptop.


Trace the cable coming from the laptop screen to the connector found beneath the bezel. Reconnect the display cable to the motherboard if the cable has come loose from the connector.

Line up the tabs on the bezel with the slots along the top of the keyboard. Insert the right edge of the bezel into the gap above the keyboard, and then push the bezel back in place.


Turn the computer back on. If the laptop screen is still blacked out, connect an external monitor to the video port on the side of the PC to confirm that the video card isn't defective.

If the external monitor works, the LCD screen could be broken.

If the monitor doesn't work, the motherboard or video card might need to be replaced.


Hope this helps




Nov 26, 2012 | Computers & Internet

1 Answer

Dell monitor flashing green power button black screen.


Your computer is in sleep mode, a low power mode that conserves power by turning off the screen and hard drive.

Push the power button on the system and the computer will resume.

If you don't like this feature, you can turn off sleep mode in the power options in Control Panel

Jul 26, 2011 | Dell Dimension 2400 PC Desktop

1 Answer

Power Save mode on, can not use computer


If your computer is indeed running, simply unplug your monitor from the wall, and then plug it back in. This will bring your monitor out of power save mode instantly.

Apr 22, 2010 | Dell Dimension 8400 PC Desktop

1 Answer

Dimension e310- Black screen when powering on, 1 & 2 lights blink


Generally, the 1 and 2 Diagnostic LEDs indicate a failure of a PCI expansion card.
http://support.dell.com/support/edocs/systems/dim3100/en/sm/adtshoot.htm#wp1130520
So remove any expansion cards, see if anything changes. If it does, one of the PCI cards is suspect.
If the system has an expansion video card in the PCI-E slot, and removing the PCI cards had no effect, remove the PCI-E video card and connect to the intergrated video port (You may have to remove a black cover from the port) and see if you get video. If you do, then the Expansion video card has failed.

Nov 21, 2009 | Dell Computers & Internet

1 Answer

When you star it is black screen and stay black


If nothing is happening, it is related to the power. Make sure that you are using a electrical outlet that is working (use a light to test). Unplug the power cord from the back of the computer, as well as from the wall socket, and then plug it back in with authority... making sure it has a good connection on both ends. You may also use another power cord (but rarely would be the cause of the problem). If there is no action from the power supply when you press the on button, then the problem must be with the power button or the power supply. I would lay odds that it is the power supply, replacement should cost about $30.

Hope this helps. Best Regads, -md

Nov 11, 2009 | Gateway 510H Pentium 2.4 GHz, 256MB RAM,...

1 Answer

-Orange light on Power-up button stays lit. -No Video, just black screen. using AGP Video card TNT 32mb / Model CT5823 I've replaced the battery, double checked the cables, Power supply is good. Gatew


This is typical of a failed power supply. Look on the back of the power supply, there may be a red switch for input voltage. Unplug the power cord, flip that switch a few times and then plug the cable in and try again. If nothing changes, see if there's a small black button on the back of the power supply. If there is, unplug the power cable and press the button and hold it for 10-15 seconds. If an LED flashes or turns on, then plug the cable back in and try again. If this all fails, replace the power supply.

May 17, 2009 | Gateway Computers & Internet

1 Answer

I have a shap lcd computer monitor and when i plug it into my computer and turn the power on, the little green power light comes on, screens back. and after 5-10 seconds the light turns orange and blinks...


It could be your monitor is fine. It simply goes to a cycle when its turned on and does not detect any signal coming from your CPU, it simply goes on standby mode (hence the darker image and orange/blinking light.) have you checked the computer (CPU) part?

Dec 04, 2008 | Computers & Internet

1 Answer

Black screen when i turn on computer.


Do a power drain :- Disconnect every cord from the back of computer tower while the pc is oiff and then press and hold down the power supply button in front of the tower..
have u tried updating the bios any time before?
Secondly,is it possible to go to the safe mode or the screen goes blank even before that?

Jun 27, 2008 | Compaq Presario SR1103WM-B (PC183B#ABA) PC...

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