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      Summary of changes for BIOS update - ThinkCentre A55 (type 9636, 9638, 9640, 9641) / M55e (type 9642, 9643, 9644, 9645)

      version 2QKT29A

      • Fixes Japan keyboard missing issue

      version 2QKT28A

      • Updates ICH7 SATA initialization to accomodate Intel ICH7 BIOS specification 2.5

      version 2QKT27A

      • Fixes USB hub issue

      version 2QKT26A

      • Fixes Windows Vista activitation issue

      version 2QKT25A

      • Updates a new PXE ROM where the PXE setting cannot be saved in Boot Agent Setup (pressed Ctrl + S to enter)

      version 2QKT24A

      • Fixes Japan 106 key Keyboard issue
      • Fixes the 1806 error with a PCMCIA card

      version 2QKT23A

      • Changes Wake-On-LAN default from primary to Automatic
      • Fixes a problem with Intel Conroe processors

      version 2QKT22A

      • Updates CPU microcode
      • Fixes a problem with resume time from Sleep

      version 2QKT21A

      • Fixes a problem where the system fails to resume from S3 when using Intel Conroe_L processors

      version 2QKT20A

      • Fixes a problem where the BIOS update failed with certain processors

      version 2QKT19A

      • Adds support for Conroe_L CPU

      version 2QKT18A

      • Updates VBIOS

      version 2QKT17A

      • Fixes a problem where the USB 2.0 controller is disabled when a USB keyboard is attached
      • Changes the default value of "Hyper-Threading" in CMOS Setup to "Enabled"

      version 2QKT16A

      • Fixes CF issue

      version 2QKT15A

      • Fixes a problem with the PS/2 keyboard

      version 2QKT14A

      • Adds Chassis intrusion Switch
      • Fixes a poblem where some functions are abnormal under Microsoft Windows Vista

      version 2QKT13A

      • Enhances thermal and acoustic settings
      • Fixes a problem where the memory size on POST is different from size shown in BIOS setup
      • Fixes a problem where the PCI Wake Up option is always working even if it is disabled

      version 2QKT12A

      • Initial Production Release
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      • Alias ID: MIGR-67224
      • Document ID: PD011161
      • Last Updated :17 Jun 2014
      • © 2016 Lenovo