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**            S6420 & S6520 BIOS Version Upgrade.         **
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Last Update: 06/03/2009
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This Readme.txt is the following.

  1. Supported OS
  2. Attention
  3. Modification
  4. Operation of updating

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1. Supported OS

  Microsoft(R) Windows(R) XP Home Edition
  Microsoft(R) Windows(R) XP Professional
  Microsoft(R) Windows Vista

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2. Attention

1) AC Adapter must be connected before updating the BIOS

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3. Modification

   The following changes are made to the previous version 

   1. Changed BIOS Version Display.
   2. GMCH Intel Reference Code Update (2.5).
   3. Supported MRC 2.5
   4. Supported OEM Activation 2.1.
   5. Fixed the problem that the BIOS may not detect an HDD.
   6. Fixed the problem that BSOD with 0xFE may occur.


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4. Operation of updating

Important
   Log on the system as Administrator is needed for the updating.  


4.1 Procedure

   1. Download Bios form our website:

	http://www.pc-ap.fujitsu.com/support/drv_lb_vista_s6420.html
	http://www.pc-ap.fujitsu.com/support/drv_lb_wxp_S6420.html

	
	*** For Model with S3 Video Chipset, Please download and install Bios version 1.08.
	*** For Model with Intel Graphics Chipset, Please download and install Bios version 1.23.



   2. Upzip the downloaded file and double click on the downloaded file and follow the on screen instruction to perform BIOS upgrade.

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