A short note about your BIOS
 
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BIOS (Basic Input / Output System) which is also known as ROM BIOS because the code is stored in a "Read Only Memory" (ROM) chip. 

The BIOS contains all the code that is used to control the keyboard, display, disk drives, serial ports and a number of miscellaneous but important functions.

The PnP feature associated with today's computers is a function that the BIOS provides.

The information is stored on the BIOS chip and often can be "Flashed" in order to upgrade the features or capabilities. The chips capability to be flashed is because it is a EEPROM (Electrically Erasable Programmable Read Only Memory). 

If you know your BIOS needs an upgrade you first need to determine who makes your particular BIOS and the motherboard manufacturer also. 

      You must also determine the following:    

BIOS Companion by Phil Croucher
Phil Croucher's
BIOS Companion
most complete technical reference available for the system BIOS in today's PCs
 
 1. How important is it for you to upgrade your 
     BIOS?
2.  Is the system your are attempting to upgrade 
     a crucial part of your daily life?
3.  Do you often find it hard to find the ON/OFF
     switch?

          If you are unsure please do not continue! 
          or click here to double check.

 
 American Megatrends AMIBIOS
American Megatrends AMIBIOS
                                                                              |               
BIOS REFERENCE NUMBER
  • This number combination  represents BIOS from 1991 to present.
  • IF your Reference Number  is similar to the one below then it represents  BIOS manufactured from 1986 - 1990.
          DINT -1123-04990-K8
 

                                      1. Turn the system power off.

                                      2. As the computer restarts and you see the screen above, hold down the "Pause / Break"
                                          button located on the upper right hand of your computer keyboard (on most keyboards),
                                          or unplug your keyboard before start up.

                                      3. Notice the long string of numbers in the lower left hand corner of
                                          your screen. This is your BIOS identification string. It will look like
                                          one of these:

                                                              For Motherboards with BIOS from 1991 to Present:
                                                          51-0102-zz5123-00111111-101094-AMIS123-P
 
                                                                                                    or

                                                               For Motherboards with BIOS from 1986-1990:
                                                                                   DINT-1123-04990-K8

                                                               If the BOLD (underlined for clarity) is:
 

  •  1, 2, 8, or a letter - it is a NON-AMI Taiwanese motherboard
  •  3, 4, or 5 - it is a TRUE AMI motherboard
  • 50 or 6 - it is a NON-AMI US made motherboard
  • 9 - it is a Evaluation BIOS for a Taiwanese manufacturer. 
 
      If you have a identification number that corresponds to a NON-AMI motherboard and need technical support
                   or BIOS upgrades you WILL have to contact the company or store that sold you the product.
 
 AMI Motherboard support
 
 NON-AMI Motherboard support
 

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