Gateway E 4100 Service Manual

							Chapter 231
Remove HDD/BIOS Password Utilities
This section provides you with details about removing HDD/BIOS password methods:
Removing HDD Password:
If you key in the wrong HDD password three times, an error is generated.
To reset the HDD password, perform the following steps:
1.After the error is displayed, select the Enter Unlock Password option on the screen.
2.An Encode key is generated for unlocking utilities. Note down this key.
3.Execute the UnlockHD.EXE file to create the unlock code in DOS Mode using the format UnlockHD  
[Encode key] with the code noted in the previous step, as follows:
UnlockHD 76943488
4.The command generates a password which can be used for unlocking the HDD.
Password: 46548274
5.Key in the password from the previous step to unlock the HDD as shown. 
						

							32Chapter 2
Removing BIOS Passwords:
To clear the User or Supervisor passwords, open the RAM door and use a metal instrument to short the 
CLRP2 jumper as shown below.
Cleaning BIOS Passwords
To clean the User or Supervisor passwords, perform the following steps:
1.From a DOS prompt, execute clnpwd.exe
2.Press 1 or 2 to clean the desired password shown on the screen.
The onscreen message determines whether the function is successful or not. 
						

							Chapter 233
Miscellaneous Utilities
Using Boot Sequence Selector
Boot Sequence Selector allows the boot order to be changed without accessing the BIOS. To use Boot 
Sequence Selector, perform the following steps:
1.Enter into DOS.
2.Execute BS.exe to display the usage screen.
3.Select the desired boot sequence by entering the corresponding sequence, for example, enter BS2 to 
change the boot sequence to HDD|CD ROM|LAN|Floppy.
Using DMITools
The DMI (Desktop Management Interface) Tool copies BIOS information to eeprom to be used in the DMI pool 
for hardware management. 
When the BIOS displays Verifying DMI pool data it is checking the table correlates with the hardware before 
sending to the operating system (Windows, etc.).
To update the DMI Pool, perform the following steps:
1.Enter into DOS.
2.Execute dmitools.exe. The following messages show dmitools usage:
DMITOOLS [ /R | /WP | /WS | /WU ] [ STRING ]
• dmitools /r ==> Read dmi string from bios
• dmitools /wm xxxx ==> Write manufacturer name to eeprom
• dmitools /wp xxxx ==> Write product name to eeprom
• dmitools /ws xxxx ==> Write serial number to eeprom
• dmitools /wu xxxx ==> Write uuid to eeprom
• dmitools /wa xxxx ==> Write asset tag to eeprom
IMPORTANT:The following write examples (2 to 5) require a system reboot to take effect 
						

							34Chapter 2
Example 1: Read DMI Information from Memory
Input: 
dmitools /r 
Output:
Manufacturer (Type1, Offset04h): Acer
Product Name (Type1, Offset05h): TravelMate xxxxx
Serial Number (Type1, Offset07h): 01234567890123456789
UUID String (Type1, Offset08h): xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
Asset Tag (Type3, Offset04h): Acer Asstag
Example 2: Write Product Name to EEPROM
Input:
dmitools /wp Acer
Example 3: Write Serial Number to EEPROM
Input:
dmitools /ws 01234567890123456789
Example 4: Write UUID to EEPROM (Create UUID from Intel WFM20.pdf)
Input:
dmitools /wu
Example 5: Write Asset Tag to EEPROM
Input:
dmitools /wa Acer Asstag
Using the LAN MAC Utility
Perform the following steps to write MAC information to eeprom:
1.Use a text editor, for example Notepad, to edit the MAC.CFG file as shown:
• WriteData= 001122334455 
						

							Chapter 235 
						

							36Chapter 2 
						

							Chapter 337
Machine Disassembly and Replacement
This chapter contains step-by-step procedures on how to disassemble the notebook computer for 
maintenance and troubleshooting.
Disassembly Requirements
To disassemble the computer, you need the following tools:
•Wrist grounding strap and conductive mat for preventing electrostatic discharge
•Philips screwdriver
•Plastic flat screwdriver
•Plastic tweezers
NOTE: The screws for the different components vary in size. During the disassembly process, group the 
screws with the corresponding components to avoid mismatch when putting back the components.
Chapter 3 
						

							38Chapter 3
General Information
Pre-disassembly Instructions
Before proceeding with the disassembly procedure, make sure that you do the following:
1.Turn off the power to the system and all peripherals.
2.Unplug the AC adapter and all power and signal cables from the system. 
3.Place the system on a flat, stable surface. 
4.Remove the battery pack. 
Disassembly Process
The disassembly process is divided into the following stages:
•External module disassembly
•Main unit disassembly
•LCD module disassembly
The flowcharts provided in the succeeding disassembly sections illustrate the entire disassembly sequence. 
Observe the order of the sequence to avoid damage to any of the hardware components. For example, if you 
want to remove the mainboard, you must first remove the keyboard, then disassemble the inside assembly 
frame in that order.
Main Screw List
ScrewQuantityPart Number
M2*3 30 86.WHA02.001
M2*4 6 86.WHA02.002
M2*6 14 86.WHA02.003
M2*10 6 86.WHA02.004
M3*3 4 86.WHA02.005 
						

							Chapter 339
External Module Disassembly Process
IMPORTANT:The outside housing and color may vary from the mass produced model.
External Modules Disassembly Flowchart
The flowchart below gives you a graphic representation on the entire disassembly sequence and instructs you 
on the components that need to be removed during servicing. For example, if you want to remove the 
mainboard, you must first remove the keyboard, then disassemble the inside assembly frame in that order.
Screw List
StepScrewQuantityPart No.
WLAN Module M2*3 1 86.WHA02.001
WLAN Module M2*6 1 86.WHA02.003
DIMM Module M2*6 1 86.WHA02.003
HDD Module M2*6 2 86.WHA02.003
HDD Carrier M3*3 4 86.WHA02.001
ODD Module M2*6 1 86.WHA02.003
ODD Bracket M2*3 2 86.WHA02.001
Turn off system and 
peripherals power
Disconnect power and 
signal cables from 
system
Remove dummy card
Remove DIMMsRemove HDDRemove WLAN 
ModuleRemove ODD
Remove battery 
						

							40Chapter 3
Removing the Battery Pack
1.Turn computer over. Slide the battery lock in the direction shown.
2.Slide and hold the battery release latch to the release position (1), then lift out the battery pack from the main 
unit (2).
1 2