version 61KT49A

• Updates Westmere EP B-1 Microcode to revision 000000014h
• Adds memory fan support for 16GB DIMMs
• Fixes for USB speaker noise when system resumes from S3

version 61KT48A

• Allows force reboot when exiting Setup (for Bitlocker problem)
• Updates Nehalem D-0 Microcode to revision 000000015h
• Corrects Bios reporting CPU speeds of 3.46GHz CPU in SMBios
• Fixes for external 1394 card(s) installed where 1394 controllers were not always initialized correctly.

version 61KT47A

• Improvement in memory allocation (>3GB) for 32-bit OS
• Fixes for ATI 2450 POST error
• Adds Nehalem power management function to the WMI interface

version 61KT46A

• Adds BIOS and HDD password change support to the WMI interface
• Fixes for intermittent automatic reboot before entering OS

version 61KT45A

• Fixes for Legacy IDE support In IDE mode:
  1. "Native Mode Operation" = "Automatic" ==> Combination of Legacy and Native IDE
  2. "Native Mode Operation" = "Serial ATA" ==> Native IDE only (Default)

version 61KT44A

• Adds WMI support for Setup under the OS
• Fix for a fan control oscillation problem
• Updates Westmere B-1 Microcode

version 61KT43A

• Fix for memory bus speed always displaying 800 MHz in BIOS Setup
• Fix for SMBIOS Type 17 memory speed being incorrect
• Fix for some new Westmere-EP refresh SKUs (e.g. E5603, E5606, E5607) always resetting at TP 0xAA
• Fix for Winphlash -149 error that occurs after S3
• Fix for system hang at TP 0x4A or 0xBF during POST when running P-Cycle test
• Improves fix for the Winphlash 4099 error - this update fixes a problem that still occurred with Linphlash
• Fix for occasional POST error 135 for the CPU2 fan
• Updates thermal code for D20
• Fix for each quad-core E5607 only showing 2 logical processors under the OS

version 61KT42A

• Not released

version 61KT41A

• Fixes for a problem where the fans drop back to minimum table settings when the PECI agent changes
• Support added for the Barco 5MP2FH card
• Changes value written for PECI register 0E8h to 03h
• Fixes POST 164 memory error that occurs after changing the size of the PCI hole
• Fixes the Winphlash 4099 error

version 61KT39A

• Fixes for D20 rear fan spinning too fast after booting to an OS
• Fixes for the UUID byte order being incorrectly displayed in Setup
• Fixes for C20 intermittent hang at CP 49
• Fixes for intermittent hang at CP 10 when returning from S3
• Disables COM1 on C20

version 61KT38A

• Fixes the 5th IDE drive showing on System Summary page
• Fixes the problem of no Setup notice when setting POP/PAP with USB keyboard
• Fixes the inability to detect CPU2 fan on BIOS System Summary page
• Fixes to prevent POST error if we set physicalPresenceLifetimeLock at a future time
• Cleans up unnecessary code and fixes a problem that was causing unnecessary long delays in the periodic interrupt handler
• Fixes for exclamation mark in Device Manager that appears when returning from S3 with the second LAN disabled
• Fixes for when the onboard 1394 device is disabled or does not exist, skip saving/restoring it's data for S3

version 61KT37A

• Fixes the core incorrectly skipping "Thermal Sensor Initialization for IOH C2 stepping
• Updates Westmere B-1 Microcode to revision 00000000ch (Date: 004022010h)
• Fixes the onboard ethernet problem when NVS-450 card is installed

version 61KT36A

• Updates fan speed control settings
• Fixes Asset Tag defect
• Adds support for SSD password

version 61KT35A

• Fixes the problem where the fan control settings disappears after returning from S3
• Checks for the new Intel RC package 2.70
• Updates Westmere B-1 Microcode
• Fix for automatic power on after OS shutdown

version 61KT34A

• Workaround for Marvell SAS card on PCIe x4 slot, the system will power on automatically after shutdown
• Fix for no HDD info in BIOS after inserting Toshiba SSD 128GB
• Fix for the function of "Requiring POP on warm boot" does not work
• Fix for BIOS password not being cleared when CMOS jumper is removed
• Fix for hang at post code AA
• Fix for no difference if fan acoustics set to High, Quiet, or Normal
• Fix for can't disable VT function in BIOS setup
• Fix for don't need serial port A ring detect option in BIOS setup
• Fix for hang at post code D2
• Fix for no 0176 error when the tamper switch is opened
• Fix for SLI bug
• Support for AES_NI disable function
• Fix for secure erase SSD performance problem in SATA 2 or 3

version 61KT33A

• Fixes the problem where "the system halts if ECC error is detected in OS.

version 61KT32A

• Fixes the issue where the floppy function fails while full plug media card.

version 61KT31A

• Adds support for C20 motherboard/chassis
• Adds Westmere B-1 step microcode
• Fixes floppy function failure with media card attached

version 61KT30A

• Fixes 0167 error at post screen when Intel Xeon B0 CPU is installed by adding CPU microcode update.

version 61KT29A

• Update to Intel Memory Reference code v2.0.

version 61KT28A

• Increases memory fan speed early in POST to address higher memory temperatures when running reboot programs that quickly reboot after POST.
• Fixed: Intermittent POST hang.

version 61KT27A

• Adds support for EuP Lot 6 power consumption requirement in 'off mode' (ACPI S5).
• Fixes the problem when using SATA HDD on SATA port, the system delays for a long time when installing Vista.

version 61KT26A

• - Fixes system stall at CP 68 when "Set Max Ext CPUID = 3" is enabled
• Fixes the problem where system cannot set 1GB PCI MMIO gap when TOLM was equal to 3GB
• Fixes Nehalem family CPU Processor Power Management issues
• Fixes for system hang when loading RST Diskless
• Updates to increase the memory fan speeds if 8GB DIMMs are installed
• Enables LV-DIMM support - Fixes for POST error 0186: "Security hardware logic control error" after removing both AC power and CMOS battery
• Fixes for Sony FDD compatibility issue

version 61KT25A

• Adds code that dynamically assigns onboard LAN bus number
• Adds an [Active Processors] Setup option that allows support for [Max. Cores] or [One Core]
• Adds support for 2 nVidia 450 and 2 nVidia 420 cards
• Adds Primary Video Setup option
• Fixes for USB card reader being detected as non-removable media

version 61KT24A

• Fixes the problem where unexpected data is sent from serial port during POST
• Adds support for different SMBios Type 1 serial number formats.
• Fixes problem that allows newly attached devices to be added to the boot sequence.
• Fixes problem with some NVidia graphics cards that have multiple controllers. The wrong controller gets initialized as primary video during Bios POST.

version 61KT23A

• Fixes the issue where system hangs at power on when power button is held for 4 seconds before going into Standby mode

version 61KT22A

• Adds POST error to report if temperature sensor does not function
• Fixes possible BIOS flash error
• Changes eSata code to improve hot-plug detection

version 61KT21A

• Fixes the problem where system occasionally hangs at 85 in early BIOS POST
• Fixes the issue where 2.13GHz CPU is incorrectly reported as 2.16GHz in SMBios table

version 61KT19A

• Fixes '135' POST error
• Adds some POST and runtime changes
• Checks for PP_LIFETIME_LOCK, which is used to protect against accidentally or permanently disabling TPM
• Fixes the issue where, ASC-29320LPE cannot be displayed in POST 98h on some platforms

version 61KT19A

• Initial Production BIOS Release