Clearing Bios Passwords | Acer 4553G guide

Clearing BIOS Passwords

To clear the User or Supervisor passwords, open the DIMM door and use a metal instrument to short the G1 jumper.

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Chapter 2

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Acer 4553G manual Clearing Bios Passwords

Contents

Aspire 4553/4553G Series Service Guide Revision History Copyright III Conventions Preface Page Table of Contents Troubleshooting 109 Aspire 4553/4553G Microsoft Windows 7 Environment Test Table of Contents Features Chapter Audio StorageOptical Drive Communication Dimensions and weightPower adapter and battery Privacy control Interface Software Warranty Optional ItemsEnvironment System Block Diagram AMD Champlain Your Acer Aspire Notebook tour Front ViewIcon Description HDD Closed Front View Left ViewHdmi Right View Bottom View Indicators Icon Function Description TouchPad Basics Function Left Button Right Button Main TouchPad Lock Keys and embedded numeric keypad Using the KeyboardDesired access Num Lock on Num Lock off Lock key Description Windows Keys Key Description Hot Keys Hotkey Icon Function Description Hardware Specifications and Configurations Cores Bus Cache Package Acer P/N Speed Chipset SpecificationProcessor Specifications Size Voltage System Memory Specification 1M SPI ROM4GB System Board Major Chips Specification Ports SpecificationMemory Combinations Slot Total Memory Bluetooth Specification Wireless Module SpecificationLAN Module Specification Hard Disk Drive Interface Specification RPM Sata Capacity MB 320 Vendor & Model Seagate Capacity MB Super-Multi Drive Module Battery Specification Cell Audio Interface SpecificationKeyboard Controller Specification RTC Battery Specification LCD Specification AC Adapter SpecificationSystem LED Indicator Specification LG LP140WH2-TLA2/LP140WH2-TLL1/LP140WH2-TLL1 Hdmi Port Specification LCD Display Supported Resolution BitsVideo Interface Specification GDDR3 Card Reader Specification LCD Inverter Not available with this modelPcmcia Port Not available in this model Page Chapter Bios Setup Utility Navigating the Bios Utility Parameter Description Aspire 4553/4553G BiosInformation Uuid Parameter Description Format/Option DisabledMain Sata Class ID Parameter Description Option Disabled orSecurity Clear or Set Setting a Password Removing a Password Boot USB Cdrom Security Boot Exit Exit Saving Changes Exit Bios Flash Utilities DOS Flash Utility WinFlash Utility Remove HDD/BIOS Password Utilities Remove HDD Password Removing Bios Passwords Chapter Clearing Bios Passwords Using Boot Sequence Selector Using DMITools Configuring Uuid Values Run UUID.bat Machine Disassembly and Replacement Disassembly Requirements General Information Pre-disassembly InstructionsDisassembly Process Main Screw List Quantity Part Number External Module Disassembly Process External Modules Disassembly FlowchartScrew List Step Quantity Removing the Battery Pack Removing the SD dummy card Removing the Lower Cover Step Size Quantity Screw Type Lower Cover M2.5*6.5 Removing the Optical Drive Module Step Size Quantity Screw Type ODD Module M2.5*3 Step Size Quantity Screw Type ODD Bracket M2.0*3 Removing the Dimm Modules Removing the Wlan Module Step Size Quantity Screw Type Wlan Board M2.0*3Page Removing the Hard Disk Drive Module Step Size Quantity Screw Type HDD Carrier M3.0*3 Main Unit Disassembly Process Main Unit Disassembly Flowchart Removing the Keyboard Removing the Upper Cover Chapter Step Size Quantity Screw Type Removing the Power Switch Board Removing the Function Board Step Size Quantity Screw Type Function Board M2.0*3widehead Removing the USB Board Step Size Quantity Screw Type USB Board M2.5*4 Removing the Bluetooth Module Step Size Quantity Screw Type Bluetooth Board M2.0*3 Removing the LCD Module Chapter Step Size Quantity Screw Type Removing the Mainboard Removing the Thermal Module Step Size Quantity Screw Type Mainboard M2.5*4 Step Size Quantity Screw Type Thermal Module M2.0*3 Removing the PCH Thermal Module Removing the CPU Removing the RTC Battery LCD Module Disassembly Process LCD Module Disassembly Flowchart Removing the LCD Bezel Step Size Quantity Screw Type LCD Bezel M2.5*4 Removing the Camera Module Removing the LCD Panel Step Size Quantity Screw Type LCD Panel M2.0*3 Removing the FPC Cable Removing the Microphone Module Removing the Antennas Removing the Hinges Step Size Quantity Screw Type LCD Hinges M2.5*3 LCD Module Reassembly Procedure Replacing the MIC and WiFi Antennas Replacing the FPC Cable Replacing the LCD Panel Replacing the Webcam Replacing the LCD Bezel Main Module Reassembly Procedure Replacing the RTC BatteryReplacing the CPU Replacing the Thermal Module Replacing the PCH Thermal Module Chapter Replacing the LCD Module Page Chapter Replacing the Bluetooth Module Replacing the USB Board Replacing the Power Switch Board Replacing the Function Board Replacing the Upper Cover Page 102 Chapter Replacing the Keyboard Replacing the ODD Module Replacing the Hard Disk Drive ModulePage Replacing the Wlan Board Replacing the Dimm ModulesInsert the Wlan board into the Wlan socket Replacing the Lower Covers Replacing the Battery Pack Replacing the Dummy Cards Common Problems Symptoms Verified Go To Power On Issue Computer Shutsdown Intermittently No Display Issue No Post or Video Random Loss of Bios Settings Abnormal Video Display LCD Failure Built-In Keyboard Failure TouchPad Failure Internal Speaker Failure Sound Problems Microphone ProblemsSelect Set up microphone HDD Not Operating Correctly Select Repair your computerSelect Startup Repair ODD Failure ODD Not Operating Correctly Discs Do Not Play Drive Not Detected Wireless Function Failure Thermal Unit Failure External Mouse Failure Other Failures Intermittent Problems Undetermined ProblemsDimm Post Codes Code Post Routine DescriptionCode Beeps Post Routine Description 124 Chapter Code Beeps Post Routine Description Code Beeps For Boot Block in Flash ROM Top View U10/EC/KBC PU14/3V/5V PWM IC Steps for Clearing Bios Password Check Clearing Password Check and Bios RecoveryClearing Password Check Clear Cmos Jumper Bios Recovery Hotkey Bios Recovery by Crisis DiskBios Recovery Boot Block Steps for Bios Recovery from USB Storage FRU Field Replaceable Unit List Aspire 4553/4553G Exploded Diagrams LCD AssemblyDescription Acer P/N Chassis Assembly Wwan Minicard BEVT-22A23T0 STN HDD-BKTZQ1 ZR6FBZR6004,REV MBSG,PARK,SAM,BT WO Cpuassy BSQ Battery FRU ListCategory Partname Description Cables Case/Cover/Bracket Assembly Category Partname Description CPU/Processor ODD BD Combo Module Blue RAY Combo ODD Bezel -SUPER Multi ZR8 ODD BezelSuper Multi S.P ODD Bracket ZQ1 ODD BKT ZQ1 DVD/RW Sata MK3265GSX-EUL MK3265GSX Sata 8MB LF F MK2565GSX-EUL BS, 320G/P Sata 8MB LF FWD3200BEVT ML320M,WD Sata 8MB LF F BEVT-22A0RT0 S.P ZQ1 K/BARAB-EN ZY9EULS.P HDD Bracket ZR6 HDD-BKT S.P ZQ1 K/BBELGIUM ZQ1 K/BRUSSIAN BnorwegianBportuguese Bcroatian S.P LCD Module 144 EBJ10UE8BDS0 ZE8Ddriii 1066 1GB RAM1GBDDR3 AE-F S.P Category Partname Description Heatsink Miscellaneous Screw List Part Name Description Appendix a Aspire 4553/4553GModel Country Acer Description China TWN Gctwn LX.PSK W7HP64EMATTH1 MC W7HP64EMATMY1 MC S2.PSLX.PS AS4553-N332G32Mn W7HP64ATSG1 MC AS4553-N534G64Mn W7HP64ATSG1 MC Model Country Acer BOM Name Gctwn LX.PSK AS4553GPARK N832G50Mn 0C.022 XT512Cks3V3 AS4553G Thailand S2.PSU LX.PSU AS4553 Thailand UMA Acla LX.PSUModel Country Acer Part No VGA Chip Acla AS4553G Singapore LX.PSK02.006 AS4553G Thailand LX.PSK0C.023 AS4553 S2.PSU02.003 SO2GBIII13BR SO1GBIII13BR Model Country Acer Part No MemorySO2GBIII13BR SO2GBIII10 AS4553G Singapore LX.PSK02.009 SO2GBIII10 SO4GBIII10 SO4GBIII10 SO2GBIII10 SO1GBIII10 SO2GBIII10 SO2GBIII10 SO1GBIII10 AS4553 Thailand LX.PSU0C.009 NSM8XS Model Country Acer Part NoNSM8XSBR NBDCB4XS AS4553G Singapore LX.PSK02.008 N640GB5.4KS AS4553G Thailand LX.PSK0C.008 N500GB5.4KS AS4553 Singapore LX.PSU02.006 N320GB5.4KS AS4553 Thailand LX.PSU0C.025 N640GB5.4KS Test Compatible Components Appendix B Adapter Microsoft Windows 7 Environment TestVendor Type Description Cover Audio Codec Camera BluetoothVendor Type Description Card Reader ATP520BR AAP320BRAmdiss Toshiba Keyboard AUO Gags Samsung GagsGagsbr AUO Gagsbr Modem NB Chipset SB Chipset Side PortSoftware Pifa Vendor Type Description WiFi AntennaWireless LAN WNC 182 Online Support Information Appendix C 184 Index Removing 71, 73, 75 187 188