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TYAN (VX50B4881)
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TYAN makes no warranties to the usability of a BIOS on our website and are made available to the public on an "as-is" basis. Upgrading a BIOS without knowing the implications may cause serious adverse affects. Please do not upgrade a BIOS unless directed to do so by a qualified support technician. TYAN is not able to replace mis-used or damaged BIOS chips in the event of a BIOS flash failure. Please contact your dealer for replacements or warranty service.

Date Filename Version
2008/07/02 v.1.09
Problem Fix Description:
* Added to the BIOS menu [Hammer] the ability to set the CPU0 buffer count
* Fixed an issue where no information could be read from any FDD device

2008/01/15 VX50_B4881_v108 v1.08
New features and fixes :
* Updated AMD PowerNOW! functions
* Fixed an boot confliction issue between an Areca1220 raid card and the embedded SATA
* Updated the automatic fan control options
* Fixed an issue where VMware ESX Server3 could not be installed on a LSI MegaRaid SCSI320-2x card
* Added AMD Errata 169
* Added AMD Errata 56
* Fixed a nVidia PCIe Error Handling issue
* Fixed an issue where 2x nVidia 8800GTX cards wouldn’t work in SLI mode
* Fixed an issue where the PC speaker is always ringing

2006/09/20 vx50_b4881_106 v1.06
TYAN Transport VX50 (B4881) BIOS V1.06
New features and Fixes :
* Fixed a system reboot issue when using a GeForce 7950 GX2 graphics card
* Changed the bios default setting for the Nvidia RAID to [Disabled]
* Added IOMMU functionality
* Fixed an issue where the system wouldn't boot from scsi card with two raid volumes created
* Updated the NVMM to v4.063.01
* Automatically remap CPU APIC ID according to CPU number
* Fixed a SATA RAID Option ROM F10 issue
* Fiexed an issue where you couldn't install an Adaptec RAID card and RedHat3 UP8 (2.4 kernel)
* Added support for dual PCIE video cards that has multiple bridge design
* Fixed an automatic fan control issue
* Fixed MP table errors

2006/07/07 vx50_b4881_105 v1.05
TYAN Transport VX50 (B4881) BIOS V1.05
New features and Fixes :
* Fixed a CPU command bug for the SMDC card
* Updated CPU temperature display
* Updated the nVidia SATA RAID Option ROM to v5.60
* Fixed a SATA ATAPI boot issue
* Fixed a Windows hang issue between the BMC & the Hardware
* Updated the M4881 Hardware Monitor
* Fixed a sensor error for the BMC
* Fixed a Hot Key issue during Option ROM scans

2006/01/11 vx50_b4881_104 v1.04
TYAN Transport VX50 (B4881) BIOS V1.04
New features and Fixes :
* Changed Option ROM loading sequence
* Fixed an issue where ECC functions were not working properly
* Fixed an issue where bank interleaving was not working properly
* Updated Auto Fan Control
* Fixed an issue where 3ware cards were not booting correctly

2005/12/12 vx50_4881_103 v1.03
TYAN Transport VX50 (B4881) BIOS V1.03
New features and Fixes :
* Fixed an issue where the system would sometimes hang during POST with a FF Post code
   while using the V102 bios
* Updated the AMD PowerNOW! support for the Opteron 854 and 880 CPU's
* Added AMD PowerNOW! support for lower wattage Opteron CPU's

2005/09/29 vx50_b4881_101 v1.01
TYAN Transport VX50 (B4881) BIOS V1.01
New features and Fixes :
* This is the first release BIOS