Acer Extensa 5220 Series Service Guide

Chapter 4 119
Intermittent Problems
Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a
hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement
should be considered only when a recurring problem exists.
When analyzing an intermittent problem, do the following:
1. Run the advanced diagnostic test for the system board in loop mode at least 10 times.
2. If no error is detected, do not replace any FRU.
3. If any error is detected, replace the FRU. Rerun the test to verify that there are no more errors.

Acer Extensa 5220 Series Specifications

General

Display	15.4" WXGA (1280 x 800) TFT LCD
Optical Drive	DVD-Super Multi double-layer drive
Operating System	Windows Vista Home Basic
Processor	Intel Celeron M 530
RAM	512 MB DDR2
Storage	80 GB HDD
Graphics	Intel Graphics Media Accelerator (GMA) X3100
Battery	6-cell Li-ion
Weight	2.8 kg
Wireless	802.11b/g
LAN	10/100 Mbps Ethernet
Ports	3x USB 2.0, VGA, headphone/speaker/line-out jack, microphone-in jack