Acer Aspire 4752 Support Question
Acer Aspire 4752 Support Question
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Question posted by blGauss on October 26th, 2013
How To Open Password Bios 4752
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Related Acer Aspire 4752 Manual Pages
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 2
... prior written permission of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in this Aspire 4752/4752G/4752Z/ 4752ZG/4352/4352G Service Guide. All rights reserved. Copyright
© 2011 by any particular purpose.
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 5
Aspire 4752/4752G/4752Z/4752ZG/4352/4352G
CHAPTER 1 Hardware Specifications
Features 1-5 Operating System 1-5 Platform 1-5 System Memory 1-5 ...Ports 1-8 Software and Tools 1-8 Optional Items 1-10 Warranty 1-10 Dimensions and Weight 1-10 Environment 1-10
Notebook Tour 1-11 Open Front View 1-11 Close Front View 1-13 Left View 1-14 Right View 1-15 Base View 1-16 Touchpad Basics 1-17 ...
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 6
...Flash Utilities 2-12
DOS Flash Utility 2-13 WinFlash Utility 2-13 Remove HDD/BIOS Password Utilities 2-14 Removing the HDD Password 2-14 Removing the BIOS Passwords 2-15 Clearing the BIOS Passwords 2-16 Using DMI Tools 2-17 LAN EEPROM Utility 2-17
CHAPTER 3 Machine Maintenance
Machine Disassembly and Replacement 3-5 Recommended Equipment 3-5 Replacement Requirements 3-5 Pre-disassembly...
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 8
... 4-16 Thermal Unit Failure 4-17 Other Functions Failure 4-18 Intermittent Problems 4-19 Undetermined Problems 4-19 Error Codes 4-20 BIOS Beep Codes 4-21
POST Codes 4-26 Component Codes 4-26 Progress Codes 4-31
CHAPTER 5 Jumper & Connector Locations
Mainboard Layout 5-3 Clearing Password Check and BIOS Recovery 5-6
Clearing the BIOS Passwords 5-6 Performing a BIOS Recovery 5-7
viii
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 9
CHAPTER 6 FRU List
Aspire 4752/4752G/4752Z/4752ZG/4352/4352G Exploded Diagrams 6-4
Main Assembly 6-4 LCD Assembly 6-6 FRU List 6-7
CHAPTER 7 Test Compatible Components
Microsoft Windows 7 Environment Test 7-4
ix
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 12
...1-8 Software and Tools 1-8 Optional Items 1-10 Warranty 1-10 Dimensions and Weight 1-10 Environment 1-10
Notebook Tour 1-11 Open Front View 1-11 Close Front View 1-13 Left View 1-14 Right View 1-15 Base View 1-16 Touchpad Basics 1-... Graphics Controller 1-27 VRAM (Discrete models only 1-27 System BIOS 1-28 Keyboard 1-28 Hard Disk Drive 1-29 Super-Multi Drive 1-30 BD Drive 1-30
1-2
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 17
...-on-LAN ready Broadcom NetLink® BCM57785X controller
Privacy Control 0 BIOS supervisor, user, and HDD passwords Kensington lock slot
Power Adapter and Battery 0 19 V 3-pin...and Pointing Device 0
Keyboard 0 Aspire AC4T Flat keyboard Overlay numeric keys
Hardware Specifications and Configurations
1-7
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 38
... 1.0 support Microsoft OA 2.0 and 2.1 support
Keyboard
Item
Specification
Type
Aspire AC4T Flat keyboard
Total number of keys
88/89/93 keys
Windows logo key
Yes
Internal and external USB
Yes
keyboard work simultaneously? System BIOS
Item BIOS vendor BIOS version BIOS ROM type BIOS ROM size Protocols supported
Specification
Phoenix
v2.1
Hardware
4 MB
Legacy...
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 52
BIOS Setup Utility 2-3 Navigating the BIOS Utility 2-3
BIOS Flash Utilities 2-12 WinFlash Utility 2-13
Remove HDD/BIOS Password Utilities 2-14 Removing the HDD Password 2-14 Removing the BIOS Passwords 2-15 Clearing the BIOS Passwords 2-16
Using DMI Tools 2-17 LAN EEPROM Utility 2-17
2-2
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 57
... Supervisor Password Is User Password Is HDD Password State Set Supervisor Password Set User Password Set HDD Password Password on Boot
Description Supervisor password setting User password setting Hard drive password setting Option to set the supervisor password Option to set a user password Option to set the hard drive password Option to its dealer.
Resetting the BIOS password may...
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 58
...
to set the user or supervisor passwords.
1. Set Supervisor Password
Enter New Password [
]
Confirm New Password [
]
Figure 2-4. Press Enter. Press Enter twice without typing anything in the Confirm New Password field and press Enter.
+ IMPORTANT:
Use care when typing a password. Press F10 to save changes and exit from the BIOS Setup Utility.
2-8
System Utilities Press F10...
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 59
... press Enter. 3. Press Enter. Press F10 to enable the Password on Boot parameter. 6. System Utilities
2-9 The Set
_______ Password dialog box appears. Type the current password in the Enter New Password field. 4. NOTE: NOTE:
Users can choose to save changes and exit from the BIOS Setup Utility. Setup Notice
Changes have been saved. [Continue]
Figure...
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 64
...reset the HDD password: 1. Unlock Key Code 3.
Open the computer in succession, an error is generated. (Figure 2-11)
Password Error Status
HDD password error code
Figure 2-11. Removing the HDD Password 0
NOTE: NOTE:
If the incorrect HDD password is entered three times in a DOS environment. 2. Press Enter to remove the HDD and BIOS passwords. Remove HDD/BIOS Password Utilities 0 This...
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 65
... Hardware Gap
System Utilities
2-15 4. In the HDD password prompt, type the master password generated in step 5, then press
Enter. Select option 2 (upper case ASCII code) and press Enter. 5. Write down the generated master password. 6. Removing the BIOS Passwords 0 To clear a lost BIOS password (user or supervisor password), you need to the "Clearing the BIOS Passwords" on the mainboard.
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 66
... resting the tool on the computer. 7. If the prompt appears, repeat steps 4-9 until the BIOS passwords have been cleared. Press F10 to load the system defaults. 11. If the Mini Card slot... is occupied, remove the installed wireless module and locate the
G2201 gap. 4. Clearing the BIOS Passwords 0
1. Shut down the computer and disconnect the AC adapter and all other peripherals from the ...
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 174
...system down . Temperature is displayed. Error Codes 0
Table 4-2. An incorrect password was entered. In this situation BIOS will be shown before "Equipment Configuration Error")
010
Memory Error at xxxx...
CMOS Checksum Error
110
System is displayed.
4-20
Troubleshooting In this situation BIOS shuts the system down .
Battery critically low. No message is critically high. ...
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 178
Table 4-3. BIOS Beep Codes
Code 99h
Beeps
POST Routine Description Check for SMART drive (optional)
9Ah
...POST done- prepare to boot operating system
B4h
1
One short beep before boot
B5h
Terminate QuietBoot (optional)
B6h
Check password (optional)
B9h
Prepare Boot
BAh
Initialize DMI parameters
BBh
Initialize PnP Option ROMs
BCh
Clear parity checkers
BDh
Display MultiBoot menu...
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 188
Mainboard Layout 5-3 Clearing Password Check and BIOS Recovery 5-6
Clearing the BIOS Passwords 5-6 Performing a BIOS Recovery 5-7
5-2
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 196
Aspire 4752/4752G/4752Z/4752ZG/4352/4352G Exploded Diagrams 6-4
Main Assembly 6-4 LCD Assembly 6-4 FRU List 6-5
6-2
Aspire 4352, 4752, 4752G, 4752Z Service Guide - Page 197
...: NOTE:
To scrap or to return the defective parts, users should follow the rules set by the regional Acer office to repair or for the Aspire 4752/4752G/4752Z/4752ZG/4352/4352G. Part number changes will not be noted on the printed Service Guide. Refer to this chapter whenever ordering for parts...
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