Acer Laptop Repair Guides

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

Example 1: Read DMI Information from Memory

Input:

dmitools /r Output:

Manufacturer (Typel, Offset04h): Acer

Product Name (Typel, Offset05h): Aspire one xxxxx

Serial Number (Typel, Offset07h): 01234567890123456789

UUID String (Typel, 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:
2. tsso 1&i$cd 1391(h)

Title= MAC Address byte WriteData='001122334455' StartAddr=7A Writel_eng=6 KeepByte=0

• WriteData= '001122334455' <-------MAC value
• StartAddr=7A <-------MAC address
• WriteLeng=6 <-------MAC value length
• KeepByte=0 <-------can be any value

1. Boot into DOS.
2. Execute MAC.BAT to write MAC information to eeprom.

C:\MrtOmac.bat C:\MAOeeprom u MAC.cfg Progress —> \ Write Data to EEFROH OKff

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