Key in biospw 14452 Choose one upper-case string | Acer 7520

If you need to solve BIOS password locked problem, you can run BIOS_PW.EXE

1.Key in “bios_pw 14452 0”

2.Choose one upper-case string

Reboot the system and key in “qjjg9vy” or “07yqmjd” to BIOS user password.

56

Chapter 2

Image 64

Acer 7520 manual Key in biospw 14452 Choose one upper-case string

Contents

Please refer to http//csd.acer.com.tw Revision History Copyright III Gives precautionary measures to ProblemsProcedures Following conventions are used in this manual Preface Page Table of Contents Table of Contents Top View Bottom ViewTravelMate 7520/7520G/7220/7220G Series Microsoft Windows Vista Environment Test Table of Contents Below is a brief summary of the computer’s many feature FeaturesChapter Models Optical drive options Acer Video Conference featuring Temperature Humidity non-condensing DiagramSystem Block AMD Your Acer Notebook tour Front View Closed Front View Left View DVI-D Right View Rear Panel Computer has several easy-to-read status indicators Chapter IndicatorsBottom Panel Indicates when the hard disk drive is Easy-Launch ButtonsHDD Active Touchpad Basics Chapter Using the Keyboard Lock Keys and embedded numeric keypadFn + F11 F12 Windows Keys Hot Keys Power. Press any key to returnTechnology Euro symbol Special Key Empowering Technology password Acer Empowering TechnologyAcer eNet Management Page Acer ePower Management Using power plans To edit a power plan Acer ePresentation Management Acer eDataSecurity Management Passwords Acer eLock Management Acer eRecovery Management Restore and recovery Acer eSettings Management Windows Mobility Center Lets you set an asset tag for your system Acer Bio-Protection for selected models Using the System UtilitiesNTI Shadow Acer GridVista dual-display compatible Norton Internet Security Launch ManagerSelect Tasks & Scans Page Processor Hardware Specifications and ConfigurationsCPU Fan True Value Table Memory Combinations System Memory0MB Wireless Module 802.11b/g Bluetooth InterfaceHard Disk Drive Interface Sata Combo Drive module2MB Pata Super-Multi Drive module US & US+ RW DVDDVD+RW Audio Interface Video Interface Video MemoryPcmcia Port System Board Major Chips Battery VGALAN Modem LCD 17 inch LCD Inverter System Power Management AC Adaptor Bios Setup Utility System Utilities Navigating the Bios Utility Information Parameter Description Main C u r i t y O t I t Parameter Description Format/Option Advanced C E x i t Security C u r i t y O t I t Setting a Password Clear or Set Removing a Password Chapter Boot E o r t o Exit Table below describes the parameters in this screen Bios Flash Utility This section provide you with removing HDD/BIOS method Remove HDD/BIOS UtilityRemove HDD Password Remove Bios Password Key in biospw 14452 Choose one upper-case string Chapter Chapter Machine Disassembly and Replacement Disassembly Requirements Pre-disassembly Instructions Disassembly ProcessGeneral Information Main Screw List External Modules Disassembly Flowchart External Module Disassembly ProcessScrew List Removing the Battery Pack Removing the PC and ExpressCard dummy cards Removing the SD dummy cardPress the eject button to pop out the button Chapter See Removing the Battery Pack on Removing the Lower Cover Removing the Secondary HDD Cover Removing the Secondary HDD Bracket and Connector Loosen the two screws B from the secondary HDD coverPage Removing the Dimm Removing the Wlan Board Modules Removing the Hard Disk Drive Module Detach the Wlan board from the Wlan socket Removing the Optical Drive Module Remove the hard disk drive from the bracket M2.5 x L6 Black Kgf-cm M2 x L3 Black Kgf-cm Chapter Main Unit Disassembly Process Removing the Modem Board Removing the Heatsink Fan Module Removing the CPU and VGA Heatsink Module Remove the heatsink fan module from the main board Removing the CPU Slide out and remove the heatsink module Removing the VGA board for Discrete model only Removing the Middle Cover and the Power Board Carefully remove the VGA board from the main board Removing the Keyboard Chapter Removing the LCD Module M2.5 x L8 Black Kgf-cm Chapter Separating the Upper Case from the Lower Case Carefully remove the LCD module from the base unit Chapter Removing the Launch Board Remove the twenty screws a on the bottom and top panel Removing theTouch Pad Board Module Page Remove the fingerprint board from the upper case Removing the Main Board Carefully pry loose and remove the touch pad board M2 x L4 Silver Kgf-cm Chapter Removing the ODD Board Module Carefully remove the main board from the bottom panel Removing the Speaker Modules Removing the USB Board Remove the left and right speakers from the upper case Remove the USB Board from the lower case LCD Module Disassembly Process Removing the LCD Bezel Removing the LCD module with the Brackets Removing the Inverter Board and FPC Cable Detach the LCD with the brackets from the back cover Removing the LCD Brackets Removing the Antennas Removing the Left and Right HingeRemove the left and right hinge from the back cover Removing the Internal Microphone and Web Camera 102 Chapter Troubleshooting Symptoms Verified Go To System Check Procedures External Diskette Drive CheckExternal CD-ROM Drive Check Keyboard or Auxiliary Input Device Check Power System Check Memory check Check the Power Adapter Touchpad Check Chapter 107 Power-On Self-Test Post Error Message Index of Error Messages Error Code List Error Codes Error MessagesError Message List Error Messages FRU/Action in Sequence Bios ROM Cmos Dimm Dimm Bios ROMCPU ID LCD Post Phoenix Bios Beep Codes Code Beeps Post Routine Description Setup 114 Chapter Code Beeps 116 Chapter LCD-Related Symptoms Symptom / Error Action in Sequence Index of Symptom-to-FRU Error MessagePower-Related Symptoms Symptom / Error Action in Sequence PCMCIA-Related Symptoms Symptom / Error Action in Sequence Memory-Related Symptoms Symptom / Error Action in SequenceSpeaker-Related Symptoms Symptom / Error Action in Sequence PcmciaPage Modem-Related Symptoms Symptom / Error Action in Sequence Intermittent Problems Undetermined Problems Dimm Jumper and Connector Locations Top View Bottom View USB ConnectorCPU Password Bypassing and Bios Recovery PIN pad Location Xxxxxxx XxxxxxxPage 128 Chapter FRU Field Replaceable Unit List TravelMate 7520/7520G/7220/7220G Exploded Diagram TravelMate 7520/7520G/7220/7220G FRU List Battery Pack LI+ 6CELL 2.0MAH Finger Print Board Cable Power Cord 10A 125V US Upper Case W/ Cover Switch PGA CPU Merom T5600 1.83GHZ Intel HDD 80GB 5400RPM Sata Black Korean BIG Ergo Darfon Keyboard 1415KB-EV2 93KS Glare Name Plate TM5310 TravelMate 7520/7520G/7220/7220G Series Appendix aAppendix a 140 Appendix a Appendix a 142 143 Appendix a 144 145 Appendix a 146 147 Appendix a 148 149 Appendix a 150 151 Appendix a 152 153 Appendix a 154 155 Appendix a 156 157 Appendix a 158 159 Appendix a 160 161 Appendix a 162 Test Compatible Components Appendix B Microsoft Windows Vista Environment Test CRT Port Test Appendix B 165 IR Test Memory Card Test SD/MS/MMC/SM/CF/Microdrive/XD Online Support Information Appendix C 168 Appendix C Index Index 169 Screw List 60, 61, 73 Index