Acer eMachines E720 Series

Questions and Answers

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Richard Gray DDSAug 16, 2025
How to fix Acer Laptop when it won't turn on?
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  Dominique KingAug 16, 2025
  If your Acer Laptop isn't powering on, ensure the power cable is securely connected to both the laptop and the electrical outlet. Try removing any extension cables or surge protectors, plugging the laptop directly into a known good outlet. Consider disconnecting the power, opening the casing, and checking for obstructions in the Thermal Unit and fan airways. Also, try removing all external and non-essential hardware. You might also disable power management settings in the BIOS or remove any recently installed software.
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Deborah WebsterAug 19, 2025
How to troubleshoot sound problems on Acer Laptop?
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  vgarciaAug 19, 2025
  To troubleshoot sound issues on your Acer Laptop, start by rebooting the computer. Verify in the Device Manager that the audio device is properly installed. If you recently updated the audio driver, roll it back to the previous version. Alternatively, remove and reinstall the audio driver. Make sure all volume controls are set to a mid-range level. Also, navigate to Start > Control Panel > Hardware and Sound > Sound and ensure that Speakers are selected as the default audio device. You may also select Speakers and click Configure to start Speaker Setup. Try removing any recently installed hardware or software, or restore system settings from a known good date using System Restore. As a last resort, you can reinstall the Operating System.
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aobrienAug 22, 2025
How do I fix an internal microphone failure on my Acer Laptop?
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  kmooreAug 22, 2025
  To fix an internal microphone failure on your Acer Laptop: * Check that the microphone is enabled. * Right-click on the Recording tab and select Show Disabled Devices. * Right-click on the microphone and select Enable. * Select the microphone, then click Properties and select the Levels tab. * Increase the volume to the maximum setting and click OK. Also, test the microphone hardware.
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Dawn MossAug 25, 2025
What to do if my Acer eMachines E720 Laptop has no display?
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  bonnie45Aug 26, 2025
  If your Acer Laptop screen is blank, first ensure the internal display is selected and that the computer has power (check for fan startup or lit status LEDs). Try draining any stored power by disconnecting the power cable and battery, then hold the power button for 10 seconds. You can also connect an external monitor to the laptop and switch between displays. It's also advisable to disconnect power and all external devices, including docking stations. Reseating the memory modules or removing the drives might also resolve the issue.
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prattmaryAug 28, 2025
Why is my Acer Laptop video display abnormal?
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  pwagnerAug 28, 2025
  If your Acer Laptop is showing an abnormal video display, start by rebooting the computer. Adjust the brightness to its highest level and check that the display resolution is correctly configured. If you recently updated the video driver, roll it back to the previous version, or remove and reinstall the video driver. Check the Device Manager to ensure the device is properly installed. If you see permanent vertical/horizontal lines or dark spots in the same location, or extensive pixel damage, the LCD is faulty and should be replaced.
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cschneiderAug 31, 2025
Why does my Acer Laptop randomly lose BIOS settings?
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  jordan42Aug 31, 2025
  If your Acer Laptop is randomly losing BIOS settings, and the computer is more than one year old, replace the CMOS battery. Also, run a complete virus scan using up-to-date software to ensure the computer is virus free. If the computer is experiencing HDD or ODD BIOS information loss, disconnect and reconnect the power and data cables between devices. If HDD information is missing from the BIOS, the drive may be defective and should be replaced. As a last resort, replace the Motherboard.
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Michael ThompsonSep 3, 2025
What to do for random loss of BIOS settings on Acer Laptop?
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  Frank BrownSep 3, 2025
  If your Acer Laptop is randomly losing BIOS settings, and the computer is more than one year old, replace the CMOS battery. Also, run a complete virus scan using up-to-date software to ensure the computer is virus free.
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Pedro PaulSep 6, 2025
What to do if Acer eMachines E720 Laptop HDD is not operating correctly?
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  Susan LesterSep 6, 2025
  If your Acer Laptop's HDD isn't working correctly, begin by disconnecting all external devices. Run a complete virus scan with updated software. You might also run the Windows Vista Startup Repair Utility or the Windows Memory Diagnostic Tool. Restart the computer and press F2 to enter the BIOS Utility. Ensure all cables and jumpers on the HDD and ODD are correctly set. Remove any recently added hardware and software. Run the Windows Disk Defragmenter, or run Windows Check Disk by entering chkdsk /r from a command prompt. As a last resort, restore system settings from a known good date using System Restore.
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Christian BrownSep 9, 2025
How to fix external mouse failure on Acer eMachines E720 Laptop?
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  Robin NguyenSep 9, 2025
  To resolve external mouse failure on your Acer Laptop, first try an alternative mouse. If it's wireless, insert new batteries and check the connection. For USB mice, try an alternate USB port. Test the mouse in an alternative program. Restart the computer. Remove any recently added hardware or software, and reboot. Restore system settings from a known good date using System Restore. Check the events log for errors using the Event Viewer. If recently updated, roll back the mouse driver to the previous version or remove and reinstall the driver.
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Leah MarshallSep 12, 2025
How to resolve video driver issues on Acer eMachines E720 Laptop?
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  griffithreneeSep 12, 2025
  To resolve video driver issues on your Acer Laptop, roll back the video driver to the previous version if updated. Alternatively, remove and reinstall the video driver. Also, check the Device Manager to confirm that the device is properly installed.

Summary

System Specifications

Hardware Specifications

BIOS Setup Utility

Security and Power Options

Boot, Exit, and Flash Utilities

Password Removal and Utilities

Machine Disassembly and Replacement

Disassembly Requirements and Process

External Module Removal

Procedures for removing components like battery, covers, HDD, and ODD.

Main Unit Component Removal

Steps for disassembling internal parts like keyboard, mainboard, and CPU.

LCD Module Disassembly and Reassembly

Procedures for dismantling and rebuilding the LCD screen assembly.

Troubleshooting

Common Problems and Power;Display Issues

Overview of common issues and steps for power and display problems.

LCD, Keyboard, and Audio Failures

Troubleshooting for LCD, keyboard, touchpad, and speaker problems.

Storage and Connectivity Issues

Diagnosing problems with HDD, ODD, USB, modem, and WLAN.

POST Codes and Messages

Jumper and Connector Locations

BIOS Password and Recovery

Procedures for clearing BIOS passwords and performing system recovery.

FRU List

Exploded Diagram and FRU List

Acer eMachines E720 Series Specifications

General

Graphics	Intel GMA 4500M
Optical Drive	DVD-Super Multi double-layer drive
Storage	160GB HDD
Display	15.6" HD (1366x768)
Operating System	Windows 7
Battery	6-cell Li-ion
Wireless	802.11b/g Wi-Fi
LAN	10/100 Mbps Ethernet
Card Reader	5-in-1 card reader
Ports	3x USB 2.0, VGA, Ethernet