Question about HEWLETT-PACKARD ProBook 4520s

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Solution to why my pc monitor fails to come up at times

I have to hold the power button for 5seconds to turn off the computer and turn on again untill it finally displays

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Check the VGA driver is up to date.

Posted on Mar 19, 2014

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My laptop fail to start it only light up the power button and the fun .the monitor remains off .i left it working before


Hold the power button down until the computer powers OFF. Wait ten or fifteen seconds and push the power button. It should turn on normally with the monitor coming on also.

Jan 03, 2016 | Computers & Internet

1 Answer

Computer will not start


Press power button down for 5seconds until the computer shuts down. Remove power cable, press power button down 10s. Connect cable, try to restart.

Aug 17, 2012 | Dell Computers & Internet

1 Answer

Compute turns on, lights light up, and fans move, but there are no beeps or bios showing up.


Hi,

Computer turns on but no display. This issue is commonly caused by electrical static on the motherboard. Try doing a power drain.

If this computer is a laptop:
1. Turn the computer off by pressing the power button for a bout 5seconds.
2. Take the battery out of the computer.
3. Unplugged the ac adapter.
4. Press and hold the power button for about 30 seconds. (without any power source)
5. Put the battery back in and plug the ac adapter back into the computer.
6. Turn the computer back on.

If this computer is a desktop:
1. Turn the computer off by pressing the power button for a bout 5seconds.
2. Unplug the power cable from the computer.
3. Press and hold the power button for about 30 seconds. (without any power source)
4. Plug the power cable back into the computer.
5. Turn the computer back on.

Thank you for choosing FixYa! have a good one!

Jun 02, 2011 | Computers & Internet

2 Answers

When i turn it on the screen stays black and only the power button light stays green, how do i fix this?


Hi,

The issue you have may or may not be resolved by doing this. Most of the time this issue is caused by electrical charges which are stuck in the motherboard. But, just a heads up, again this may not resolve the issue especially if we have a hardware issue with the computer;specifically with the LCD or the inverter cable;which connects the LCD to the motherboard. In the mean time let's do this:

1. Turn the computer off by pressing the power button for about 5seconds or so, make sure no
lights are on the computer
2. Unplug the AC Adapter or the power cord of the computer, if you're using it
3. Take the battery out of the computer
4. Press and hold the power button for about 15 seconds
5. Put the battery back in
6. Plug the AC Adapter or power cord back into the computer
7. Turn the computer back on

If this fixed the issue, good for us. However, contact your computer manufacturer if your computer is still under warranty or the local technicians in your area if not. Because obviously there is nothing we can do on FixYa! when it comes to hardware issues. Thank you for choosing Fixya! Enjoy!

Feb 21, 2011 | Acer Aspire One PC Notebook

2 Answers

What is combination for entering service menu on LG M1962D?


1. Power off your monitor with POWER button

- Hold MENU button and keep it pressed while pressing POWER button

2. Press MENU button to enter Service menu

3. Change panel type

- Press SET button until PANEL text is yellow and press (-) two times to change it to LPL22W 4L

- Press MENU button to close the Service menu

- Press POWER button to power off your monitor and remove power cable for a minute and plug it in again

Jan 18, 2011 | LG M1962D Monitor

1 Answer

AOC Monitor says "no signal" and won't wake up!


This monitor refuses to wake up because it cannot find the signal from the computer.

When the light is amber, force the pc to shut down by holding the power button until all lights go off. Then, after about 10 seconds, power the pc back up again.

If this does not start your monitor, unplug all the monitors connections and plug them back in again. These things should reform the connection from the pc to the monitor.

good luck
tony

May 18, 2009 | Computers & Internet

3 Answers

Dell e510 won't make it to post


Unplug computer, disconnect all usb/monitor/internet, open it, hold power button until green led on the inside on the motherboard turns off, pop out the BIOS battery (looks like a big watch battery and use a small flathead screwdriver to depress the spring lock on one side), plug in computer, hold power button for about 20 seconds (must reset BIOS), let up on power button, wait 10 seconds and push power button. The computer should turn on. Wait for it until activity seems stable (1 min. or so). Push powerbutton to shut off.

If this has worked you have proven that it's not the power supply (it turned on). If you purchased a non dell power supply, you might try this with the original one installed.

Go buy a new battery (CR2032 3 volt). Unplug computer, open it, hold power button until green led on the inside on the motherboard turns off, pop in new battery, plug in (you should notice the power button blinking amber again), hold power button until it stops blinking (about 20 sec....again must reset BIOS), wait 10 sec., push power button. the computer should turn on. Wait for it until activity seems stabe (1 min. or so). Push powerbutton to shut off.

Now, close case, plug in all usb/monitor/internet/etc. Power up computer. You'll get an internal floppy drive error. Push F2 (maybe F1) to get into the BIOS settings and go to "drives" and turn off the internal floppy. Save and exit. The computer should boot properly now.

This seems to be a big problem with the e510, my theory is that this one small battery is the root of most of these failures (as these computers usually fail after 1-2 years), not the power supply or the motherboard (heck, when you replace the motherboard it comes with a new one of these batteries...a several hundred dollar piece of hardware, with a $5 battery that will actually fix it).

Nov 09, 2008 | Dell Dimension E510 Dual Core 2.8 Ghz...

1 Answer

Power light blinking yellow after sitting a while


Unplug computer, disconnect all usb/monitor/internet, open it, hold power button until green led on the inside on the motherboard turns off, pop out the BIOS battery (looks like a big watch battery and use a small flathead screwdriver to depress the spring lock on one side), plug in computer, hold power button for about 20 seconds (must reset BIOS or something), let up on power button, wait 10 seconds and push power button. The computer should turn on. Wait for it until activity seems stable (1 min. or so). Push powerbutton to shut off.

If this has worked you have proven that it's not the power supply (it turned on).

Go buy a new battery (CR2032 3 volt). Unplug computer, open it, hold power button until green led on the inside on the motherboard turns off, pop in new battery, plug in (you should notice the power button blinking amber again), hold power button until it stops blinking (about 20 sec....again must reset BIOS or something), wait 10 sec., push power button. the computer should turn on. Wait for it until activity seems stabe (1 min. or so). Push powerbutton to shut off.

Now, close case, plug in all usb/monitor/internet/etc. Power up computer. You'll get an internal floppy drive error. Push F2 (maybe F1) to get into the BIOS settings and go to "drives" and turn off the internal floppy. Save and exit. The computer should boot properly now.

This seems to be a big problem with the e510, my theory is that this one small battery is the root of most of these failures (as these computers usually fail after 1-2 years), not the power supply or the motherboard (heck, when you replace the motherboard it comes with a new one of these batteries...a several hundred dollar piece of hardware, with a $5 battery that will actually fix it).

Oct 11, 2008 | Dell XPS 200 PC Desktop

2 Answers

LCD blank screen, blink white


blank_page Use a reset sequence on the monitor-
1. turn off monitor
2. unplug power
3. plug power back in, holding down the last button on the left, then push the power button to turn back on and off three times, holding on the third try until it comes on- hold for ten seconds and release; the monitor should work again

Jul 28, 2008 | Computers & Internet

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