IBM 6644 User Manual

10     IBM Desktop System HMM

The model number and serial number information is 
stored in BIOS ROM and displayed in the “Product 
Data” of BIOS Configuration/Setup main menu. If a 
service repair is completed by replacing a new 
system board or a new BIOS ROM, then you are 
required to input the original system's model number 
and serial number into the new BIOS ROM.

Follow these steps to input the serial number and 
model number to BIOS:
1. Use BIOS flash utility program. 
2. After the language type is selected, the updated 

serial number  will appear on the screen as below:

3. Press Y, then press Enter. When the screen 

shows: 

    

Enter the serial number and press Enter to continue. 
4. When the next screen shows to update model 

number: 

    

Press Y, then press Enter. 

The current Serial Number in your machine is: [ AAD3H8R ]
Would you like to update the Serial Number? [ Y/N ]

Please enter the Serial Number of your system

[          ]

The current Machine Type/Model in your machine is:[H01506]
Would you like to update the Machine Type/Model? [ Y/N ]