Acer Aspire One D255 Series

Questions and Answers

R
robertnelsonJul 26, 2025
What to do if Acer Laptop has no POST or video?
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  Roger ColemanJul 26, 2025
  If your Acer Laptop shows no POST or video, ensure the internal display is selected and the computer has power (fans start, status LEDs light up). Then, drain any stored power by removing the power cable and battery, holding the power button for 10 seconds. Reconnect the power and reboot. Try connecting an external monitor. Disconnect all external devices, remove memory cards and CD/DVD discs, and restart. Reseat the memory modules and remove the drives.
K
Keith HallAug 2, 2025
Why does my Acer Aspire One D255 randomly lose BIOS settings?
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  mmorenoAug 2, 2025
  If your Acer Laptop randomly loses BIOS settings, and it's more than a year old, replace the CMOS battery. Run a complete virus scan using up-to-date software. If the computer is experiencing HDD or ODD BIOS information loss, disconnect and reconnect the power and data cables between the 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.
B
Barbara WallaceAug 10, 2025
What to do if my Acer Laptop computer shuts down intermittently?
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  Jason RosalesAug 10, 2025
  If your Acer Laptop shuts down intermittently, ensure the power cable is properly connected to both the computer and the electrical outlet. Remove any extension cables or surge protectors between the computer and the outlet, and plug the computer directly into a known good outlet. Disconnect the power and check that the thermal unit and fan airways are free of obstructions. Remove all external and non-essential hardware, and any recently installed software.
J
Johnny HortonAug 17, 2025
What to do if my Acer Laptop HDD is not operating correctly?
- J
  Joshua SwansonAug 17, 2025
  If the HDD in your Acer Laptop isn't working correctly, try these steps: Disconnect all external devices. Run a complete virus scan using up-to-date software. Run the Windows 7 Startup Repair Utility. Restart the computer and press F2 to enter the BIOS Utility to check the BIOS settings, ensuring the CD/DVD drive is the first boot device. Confirm all cables and jumpers on the HDD and ODD are correctly set. Remove any recently added hardware and software. Run the Windows Disk Defragmenter and Windows Check Disk.

Summary

System Specifications

System Block Diagram

Hardware Specifications and Configurations

Provides detailed hardware specifications for the processor, memory, interfaces, and other system components.

System Utilities

BIOS Setup Utility

Security

BIOS Flash Utility

Provides instructions and conditions for updating the system BIOS flash ROM.

DOS Flash Utility

WinFlash Utility

Remove HDD;BIOS Password Utilities

Creating a USB Flash Crisis Disk

Machine Disassembly and Replacement

Disassembly Requirements

Lists the necessary tools for disassembling the computer, such as screwdrivers and plastic tweezers.

External Module Disassembly Process

Removing the Battery Pack

Removing the Keyboard

Removing the HDD Module

Removing the WLAN Module

Main Unit Disassembly Process

Removing the Upper Cover

Removing the Mainboard

Detailed instructions on how to disconnect cables and remove the mainboard.

Removing the LCD Module

Removing the LCD Panel

Main Module Reassembly Procedure

Replacing the HDD Module

Replacing the Keyboard

Replacing the Battery

Troubleshooting

Common Problems

Provides a guide for common computer problems with a table linking symptoms to relevant pages.

Power On Issue

Troubleshooting steps if the system does not power on, emphasizing not replacing non-defective FRUs.

No Display Issue

Steps to resolve issues where the display does not work, including checking panel and cable connections.

No POST or Video

Guidance for when the POST or video display fails, suggesting checks for power and display output.

Abnormal Video Display

Random Loss of BIOS Settings

LCD Failure

Troubleshooting steps for LCD failures, focusing on checking module and cable integrity.

Built-In Keyboard Failure

Steps to resolve issues with a failed built-in keyboard, checking FPC connection and keyboard integrity.

Touch Pad Failure

Troubleshooting for touchpad malfunctions, involving checks of the FFC and logic board.

Internal Speaker Failure

Steps to diagnose and fix internal speaker failures, checking mainboard and speaker cable connections.

Sound Problems

Internal Microphone Failure

Troubleshooting for internal microphone failures, including checking enablement and audio properties.

HDD Not Operating Correctly

Steps to resolve issues with the Hard Disk Drive not operating correctly, including startup repair.

Wireless Function Failure

Troubleshooting steps for wireless LAN failures, involving antenna and card checks.

Jumper and Connector Locations

Clearing Password Check and BIOS Recovery

Provides procedures for clearing passwords and recovering BIOS using hardware jumpers or crisis disks.

BIOS Recovery by Crisis Disk

FRU (Field Replaceable Unit) List

Exploded Diagrams

Aspire D255 FRU List

Lists Field Replaceable Units (FRUs) for the Aspire D255 model, categorized by component type.

Model Definition and Configuration

Aspire D255 Model Configurations

Details various configurations of the Aspire D255 model, including region, BOM name, CPU, and LCD.

Acer Aspire One D255 Series Specifications

General

Storage	160GB/250GB HDD
Graphics	Intel GMA 3150
Operating System	Windows 7 Starter / Windows XP Home / Linux
Wireless	802.11b/g/n Wi-Fi
Webcam	0.3 MP
Processor	Intel Atom N450/N455 or N550
RAM	1GB
Display	10.1-inch, 1024x600 resolution
Battery	3-cell or 6-cell Li-ion
Weight	1.25 kg (2.76 lbs)