Acer Aspire 4750Z Support Question
Acer Aspire 4750Z Support Question
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Question posted by Sadoju on September 30th, 2014
How To Remove Password Bios On Acer Aspire 4750z
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Related Acer Aspire 4750Z Manual Pages
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 1
Aspire 4750 and 4750G Series Service Guide
Service guide files and updates are available on the ACER/CSD web; for more information,
please refer to http://csd.acer.com.tw
PRINTED IN TAIWAN
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 7
... Diagram 4 Your Acer Notebook tour 5
Top view 5 Hotkeys 6 Closed front view 7 Rear view 7 Left view 7 Right view 9 Base view 9 Hardware Specifications and Configurations 11 BIOS Setup Utility 19
System Utilities 19
Navigating the BIOS Utility 20 Information 21 Main 22 Security 24 Boot 28 Exit 29 BIOS Flash Utility 30 Remove HDD Password 31 Disassembly Requirements...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 8
... 64 Removing the LCD Bezel 65 Removing the LCD panel with the Brackets 66 Removing the LCD Brackets 70 Removing the FPC Cable 71 Removing the Web Camera 72 Removing the Microphone 74 Removing the ... 92 Undetermined Problems 92 Main Board 93
Connector Locations 93
Clearing Password Check and BIOS Recovery 96 Clearing Password Check 96 BIOS Recovery by Crisis Disk 97
FRU (Field Replaceable Unit) List ...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 19
H/W shot down at 110 ° .C BIOS
Item BIOS vendor BIOS Version Supported protocol
Specification
Phoenix
1.0
ACPI 1.0b/2.0/3.0 compliance, PCI 2.2, System/HDD Password Security Control, INT 13H Extenstions, PnP BIOS 1.0a SMBIOS 2.4, BIOS Boot Specification, Simple Boot Flag 1.0, Boot Block, PCI Bus Power Management Interface Specification, USB Specification 1.1/2.0, IEEE 1394 1.0, USB/1394...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 27
... Base Board Asset Tag Aspire 4750 Acer XXXxXxXX-xXxX-XXxx-xXXx-xXXxXXxXxxXX
F1 Help Esc Exit
Select Item -/+ Change Values
F9 Setup Defaults
Select Menu Enter Select Sub-Menu F10 Save and Exit
Chapter 2
19 However, if you encounter configuration problems, you want to change boot device without entering BIOS Setup Utility, please...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 29
...: ATAPI Model Name: System BIOS Version: VGA BIOS Version: KBC Version: Serial Number...: Asset Tag Number: Product Name: Manufacturer Name: UUID:
Intel (R) Core (TM) i7-2720QM CPU @ 2.20 GHz 2.20GHz XXXXXXXXXXX-(XX) XXXXXXXX XXXXXXXXXXX-XXX XX-XXXX-(XX) VX.XX XX-XXX XXXXXX.XXX.XXX.XXX.XXXXXX XX.XX XXXXXXXXXXXXXXXXXXXXXXX Base Board Asset Tag Aspire 4750 Acer...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 32
... F10 Save and Exit
NOTE: Please refer to "Remove HDD/BIOS Password" section if you need to know how to remove HDD/BIOS Password.
24
Chapter 2
Information
Phoenix SecureCore Tiano Setup
Main
Security
Boot
Exit
Supervisor Password is: User Password is: HDD Password is:
Set Supervisor Password Set User Password Set HDD Password
Clear Clear Clear
[Enter] [Enter] [Enter]
Item Specific...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 33
...
NOTE: When you set the user password.
The password length can not either enter the Setup menu nor change the value of parameters. Removing a Password
Follow these steps as you are done, press F10 to your password. Press Enter to "Set".
4.
After setting the password, the computer sets the User Password parameter to set , this screen. When...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 34
... changes and exit the BIOS Setup Utility. The computer then sets the Supervisor Password parameter to "Set". 5. When you are done, press F10 to highlight the Set Supervisor Password parameter and press the Enter key. Type the current password in the Enter New Password field.
Changing a Password
1. Type a password in the Enter Current Password field and press Enter...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 39
....
2. Chapter 2
31
These passwords are master password. XXXXXX - Remove HDD Password
This section teaches you how to remove HDD password: Remove HDD Password:
• If you key in "unlock6 XXXXXX 0". Key in the wrong HDD password thrice, "HDD password error code" will be diplayed.
3. Select "2" and a list of the pasword from the list to solve HDD password locked problem, you can...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 88
...Power Source and Total
Battery Power Remaining are necessary if the pointer movement stops in the BIOS Setup Utility menus, reset the computer, enter Setup and install Setup defaults or correct the ...battery pack. No service actions are correct. 3. Do not replace a non-defective FRU. Remove the battery pack and measure the voltage between battery terminals 1(+) and 6(ground). 3. The following...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 89
...
81 Battery critical LOW In this situation BIOS will shut down system, no message will show message.
Thermal critical High In this situation BIOS will be shown before "Equipment Configuration Error...xxxxh, W:xxxxh)
Real Time Clock Error
CMOS Battery Bad
CMOS Checksum Error
System disabled. CPU BIOS Update Code Mismatch 2. Index of Error Messages
Error Code List
Error Codes 006
010 070 ...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 95
...to boot operating system One short beep before boot Terminate QuietBoot (optional) Check password (optional)
87 prepare to UserPatch2 Build MPTABLE for multi-processor boards Install CD... I/O ports Configure Motherboard Configurable Devices (optional) Initialize BIOS Area Enable Non-Maskable Interrupts (NMIs) Initialize Extended BIOS Data Area Test and initialize PS/2 mouse Initialize floppy...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 100
...to do not replace any problems are supported by a variety of the following devices:
• Non-Acer devices • Printer, mouse, and other external devices • Battery pack • Hard disk ...PC Cards 4. If any FRU. 3. Remove or disconnect all attached devices are found, replace the FRU. 3. If the problem does not recur, reconnect the removed devices one at the time of the ...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 104
...; Power off the system, and remove the HDD, AC adapter and battery from the hardware gap.
• Restart the system. G2201
Steps for Clearing BIOS Password Check
If the user sets the BIOS Password (Supervisor Password and/or User Password) for a security reason, the BIOS will ask for clearing the BIOS password (Supervisor Password and User Password).
96
Chapter 5 NOTE: The steps...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 105
... reconnect the USB storage device, and make sure the files are saved to create a file named startup.nsh with minimum BIOS initialization. BIOS Recovery Hotkey
The system provides a function hotkey: Fn+Esc, for BIOS recovery: 1. Prepare a removable USB storage device (size greater than 10MB). Note that all data on during the creation of the...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 107
Refer to this printed Service Guide. You MUST use the local FRU list provided by your Acer office may have a DIFFERENT part number code from those given in global configurations of Aspire 4750/4750G Series. Please note that WHEN ORDERING FRU PARTS, you should follow the local government ordinance or regulations on the...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 147
... a list of telephone, fax and email
contacts for ways to optimize and improve our services, so if you can be obtained directly from Acer CSD Taiwan. Appendix C
Online Support Information
This section describes online technical support services available to help you repair your Acer Systems. If you need them. and password. Appendix C
139
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 149
... 30
antennas
removing 74 Audio 15
B
back cover
removing 38
battery pack
removing 36 BIOS 11
vendor 11 Version 11 BIOS Recovery 96 BIOS Recovery Boot Block 97 BIOS Recovery by Crisis Disk 97 steps 97 BIOS Recovery Hotkey 97 BIOS Utility 19-30 Navigating 20 System Security 29
brightness
hotkeys 6
C
Clearing BIOS Password
steps 96 Clearing Password 96
CPU
removing 60 CPU...
Acer Aspire 4350, 4750, 4750G, 4750Z Service Guide - Page 150
... Model Definition 113
N
notebook tour 5
O
Online Support Information 139
P
password
changing 26 removing 25 setting 25 Power Adapter Check 79 Power System Check 79 Battery Pack ... 11 System Utilities 19
T
Test Compatible Components 135
touchpad and button boards
removing 47 Touchpad Check 80 Troubleshooting 77
U
Undetermined Problems 92
utility
BIOS 19-30
V
142
view
bottom 9 front 7 left 7 rear 7 ...
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