Question about Acer Aspire 4720 Notebook

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My notebook not starting, whenever i press power button no screen display arrive, only HDD light blow and than laptop automatically turn off. my warranty period has laps.

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1. Take the battery out of the laptop & try to turn on the laptop using power adapter only. If the computer turns on, then the battery is defective & needs to be replaced.
2. Make sure the power adapter is not defective. Test the output voltage of the power adapter using a voltmeter. Compare the voltmeter reading to the nominal value written on the adapter or the laptop.
3. If you have another processor which is compatible with your laptop's model, try swapping processors & test to see if the laptop will work.
4. The motherboard could be defective & needs to be replaced.

Posted on Sep 19, 2010

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Posted on Jan 02, 2017

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I started setting up an intel d865perl today and i'm pretty sure i did everything right, i followed diagrams read manuals and such but when i plug in the power cord it immediately starts and there a green...


1. There is a BIOS SETUP setting to "automatically start after a power outage" -- this is useful for "servers".

2. If you press and HOLD the power-button for TEN seconds, the computer should shut itself off.

3. Turn the computer off, disconnect the "data" cable to the HDD (hard-disk-drive) and then turn the computer on. Does the HDD lamp still light-up?

4. Do you get any on-screen video when it starts to start-up?

Sep 02, 2010 | Intel D865PERL Motherboard

1 Answer

HP Pavillion DV2000 (dv2415)laptop w AMD Turion64X2, running Windows Vista. The problem appears to be a power up issue where, when the laptop is initially turned on, all the various lighted buttons around...


We can troubleshoot the Overheat issue but first we need to turn it on. Perform following steps and check if you can see the diplay on screen.

1. Disconnect the AC Adapter.
2. Remove the Battery.
3. Hold the Power button down for 30 seconds to 1 minute.
4. Reconnect the AC adapter and do NOT connect the battery now.
5. Turn on the Notebook power.

If the Notebook power up and shows you display, then proceed with further steps (or you can connect a desktop monitor to check if its displaying. Press Fn+F4 to toggle the display on external monitor)

The notebook may overheat and make noise or stop working due to the following conditions:
1. Due to incorrect power supply from the AC adapter.
2. If the Fans/Heat Sink are not working properly.
3. If the power management and BIOS settings are messed up in the Notebook.
4. Finally due to other components on the system board.

To resolve this problem with overheating, perform following steps.

I check your Laptop and see that your Laptop product number is "GA534UA#ABA" with Windows® Vista Home Premium pre-installed, if you are using the same, process with following steps.

Step 1: Reset the BIOS to factory defaults:
1. Click Start, Turn Off Computer, Restart.
2. When the HP logo appears, press F10 to enter BIOS Setup.
3. Press F9 when you are in BIOS Utility to load the BIOS to default. Click YES. Then press F10 to Save & Exit.

Step 2:Re-install Power Management in Vista
1. Press Windows key + R
2. Type devmgmt.msc and press enter.
3. Click the plus (+) sign next to System Devices.
4. Right-click the ACPI Fixed Features button and select Uninstall.
5. Restart the system.
On restarting the system, Windows will automatically detect and install Power Management on the computer.

Step 3: Installing an update for BIOS:
Caution: Install this BIOS only if you are using pre-installed operating system with above mentioned Product number.

WinFlash for HP Notebook System BIOS (for Notebooks with AMD Processors):
ftp://ftp.hp.com/pub/softpaq/sp43501-44000/sp43666.exe

Step 4: AirVent cleaning:
Reducing Heat and Fan Noise by Cleaning Air Vents:
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01657439&cc=us&dlc=en&lc=en&jumpid=reg_R1002_USEN

In case there is no display, remove and reseat the Hard Disk and RAM and check for the issue. If display comes up after removing and reseating the RAM and HDD, then you need to follow the above steps again.

Service Manual to remove reseat HDD and RAM:
http://h10032.www1.hp.com/ctg/Manual/c01035657.pdf
Memory Module Page: 127 of 310
NOTE: If you have more than one memory module, you should test them individually to determine if one or both of them are faulty. Insert each module separately, then turn on the notebook to determine if the inserted module is working. Once you have determined which memory module is faulty, you can replace the faulty module and reseat the working module.

Hard Disk Page: 121 of 310

Contact HP at www.hp.com/support/chat for further assistance.

Aug 22, 2010 | HP Pavilion dv2415nr Laptop

1 Answer

No display on hp 6345s laptop


Try to turn off your system. Then remove the cables and battery on the laptop. Then press and hold the power button for 8 secs. Then, reinsert the cables and battery on the laptop. Then, press the power button to turn on the laptop. If the HDD light flickers continuously, then the problem is on the Hard Drive. One way of resolving it is to Re-Seat the Hard Drive. If you know how to tear down the system, here's how. Turn off the laptop, remove the cables and battery at the back. Remove the screws located at the corners of it. Then remove and reinsert back the Hard Drive. If it still fails, contact ACER to immediately replace the Hard Drive. If you don't know how to tear down the laptop, then call ACER also for repair....

Jul 19, 2010 | Acer Aspire 9300 Notebook

1 Answer

Compaq 615 froze with no display and fan whirring.


1. If the notebook computer is running solely on battery power, plug the AC adapter into the notebook.
2. Shut down the computer if it is running.
3. Press the power button to turn on the computer.
4. Press f10 when the HP/Compaq logo displays.
5. After the BIOS Setup Utility displays, use the Right Arrow key to select the Diagnostics menu.
6. Select HDD Self-Test options .
7. Press enter to display a list of HDD/Self-Test options.
8. Select Notebook Hard Drive and then press f10 to display an Estimated test time .
9. Press f10 to continue. The Hard Drive Self Test executes a Quick test , a Comprehensive test, and a SMART test.
If test reports pass then perform installation of OS
else hard drive has gone bad

Apr 16, 2010 | Compaq Computers & Internet

3 Answers

Acer Aspire 7520 black screen wont boot


Turn off notebook. Remove the battery. Press Power button. Notebook should start working. Wait for 15 secs. If the screen still blank press Power button and hold it for approx. 4 seconds until notebook is powered off. Then press power button again. Bingo, problem should be solved.

Dec 19, 2009 | Acer Aspire 7520-5185 Laptop

1 Answer

Screen wont turn on


remove the battery and the power from the laptop.....then press and hold down the power button for 20 seconds ...... attach the AC power only and turn on the laptop this should turn on the system.
This drains the capacitors on the system (safety feature of laptops ... quite common)

If this does not work remove the Ram and reseat it ... something has either come loose or the backlight on the LCD has gone bad.

Oct 06, 2009 | HP Pavilion dv2000t 14.1" Notebook Laptop...

1 Answer

Acer Extensa 5420 won't turn on, not a power/battery problem.


Just for the heck of it, try blowing out the cooling fan with some compressed air. If you have never cleaned it and the fan stops turning, the computer will go into a safe mode and not start up.
Ther should be a vent somewhere on the side of the laptop that vents hot air cooling the CPU. That is where you need to blow it out.
Hope it helps- just a longshot...

May 26, 2009 | Acer Extensa 5420-5687 Notebook

4 Answers

HP DV2036ea i have a blank screen on the computer


Hello there

Description.

When pressing the notebook power button nothing is displayed on the screen or display. The cause of this problem may be a failed AC adapter, the memory modules (RAM) need to be reseated or a failed notebook system board component which will require an HP certified repair.

Below steps will assist in identifying the cause of the problem and suggest the best solution. Test the AC adapter Follow the steps below to determine whether the problem is related to the AC adapter or your notebook system board.
  1. Remove the battery and disconnect all external devices from the computer.
  2. Hold the Power button for several seconds, with all power sources removed. This drains residual power from the system, and may correct many problems.
  3. Connect the AC adapter to a wall outlet and plug the other end into the computer.
  4. Press the Power button to start the notebook PC.
If the notebook does not start or the display is blank then check the power indicator light or power socket LED. Check the power indicator light or power socket LED On newer models of notebook PCs, there is an LED or indicator light around the power socket on the notebook. Check to see if this light is on or off, when the notebook is plugged into AC power.The power indicator light or power socket light should turn on when the AC adapter is connected.

  • If the light does not turn on then the problem is most likely related to the AC adapter or the electrical source in your home or office. Go to the Light does not turn on section on this page.
  • If the light does turn on but the notebook does not start or the there is a blank screen then continue to the Light does turn on but the notebook does not start section on this page

The light does not turn on when the AC adapter is connected If the power indicator LED is off, the AC power adapter may need to be replaced. To determine if the AC power adapter needs to be replaced follow the steps below:
  1. Ensure that the AC adapter is plugged directly into a known working wall outlet.
    NOTE: To check the wall outlet, plug in a different known working device like a light, radio etc.
  2. Check all of the following connections:
    • The connection from the power cord to the wall outlet.
    • The connection into the power adapter from the power cord.
    • The connection from the AC adapter to the notebook power socket.
  3. Press the power button again to test the notebook PC.
If the power indicator light still does not turn on, then the AC Adapter needs to be replaced. Contact HP Service and Support for further assistance. Power socket LED or power indicator light is on but the notebook does not start If notebook power indicator light (LED) is on, the AC adapter is working correctly. The problem is a result of a hardware failure in the notebook itself. In some cases, reseating the memory module (RAM) may solve the problem.

Feb 02, 2009 | HP Pavilion dv2000t 14.1" Notebook Laptop...

1 Answer

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reinstalll u r window with new partition and try keybord update

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Booting problem


Similar problem
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