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Thunder K8SR (S2881)
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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
2007/08/24 S2881_v208 v2.08
TYAN Thunder K8SR (S2881) BIOS V2.08
New features and Fixes :
* Updated 64Mbit Flash module to supprot new SST part revisons (49LF040B-RevC)
* Added boot-to-bios support
* Updated AMD CPU support
* Updated AMD PowerNOW! support
* Updated the Silicon Image SiL3114 Chipset firrmware to v5.0.73
* Added support for 750GB sized SATA HD's
* Added support for detecting SATA RAID Arrays above 2TB in size

2006/07/28 s2881_207 v2.07
TYAN  Thunder K8SR (S2881) V2.07
New features and Fixes :
* Add fix for AMD BIOS Check V3.1.1
* Add errata #122 for single and dual core CPU configuration
* Updated the USB module to v2.23.02
* Added a fix for USB KVM switches
* Aded a fix that will preserve the RTC data any time the BIOS is flashed with the /c switch
* Update the Console Redirect functions
* Fixed CPU L1 cache size not detecting correctly in BIOS setup
* Updated DMI PCI information
* Added a fix for Cherry KB when the Tyan SMDC card is used together
* Implemented the AMD specification for clock down of DDR400 memory to DDR333 speeds
   when more than 6 loads of memory are in use
* Updated the Silicon Image SiL314 Option ROM to v5.2.1.9
* Fixed an issue where 4GB of memory would not display correctly when memory hole is enabled
* Fixed an under 2GB memory size display problem
* Updated CPU support
* Updated AMD PowerNOW! support
* Implemented errata131 to the BIOS

2005/06/10 s2881_206 v2.06
TYAN Thunder K8SR (S2881) V2.06
New features and Fixes :
* Add Support for Dual Core
* Add AMD PowerNow! Support
* Enable ACPI 2.0 by default
* Update console redirect
* Add F2 support for remote console PXE boot
* Change PMIO base to resolve resource conflict with multiple PCI cards
* Update CPU module
* Update NB module
* Update Hardware Memory Hoisting support
* Fix the issue with wakeup from S1
* Fix Memory performance issues at cold boot

2005/02/14 s2881_205 v2.05
TYAN Thunder K8SR (S2881) V2.05
New features and Fixes :
* Add Dx stepping CPU support
* Add Ex stepping CPU support
* Correct Voltage display info in HW monitor page
* Add beep code for no memory error
* Open Floppy drive B setup option
* Update Silicon Image Oprom to v5.048 to resolve some
* DOS & Linux compatibility issues
* Latest CPU/Chipset Errata updates
* Add PXE Endless Boot support

Note: This BIOS follows AMD recommendations for DDR bus speed as a function of loading. As a result if you are running CG or older stepping CPU AND more than 6 loads DDR 400 memory the BIOS will automatically set the bus speed to DDR 333 speeds. For more information see the AMD BIOS and Kernel Developer's Guide (PID# 26094) - here

2004/08/26 s2881_204 v2.04
TYAN Thunder K8SR (S2881) V2.04
New features and Fixes :
* Updated the SiL3114 Firmware from v5.0.035 to v5.0.037

2004/08/06 s2881_202 v2.02
TYAN Thunder K8SR (S2881) V2.02
New features and Fixes :
* Updated AMI core (v8.00.10)
* Added Opteron CG stepping support
* Added Opteron 250 CPU support
* Added memory PCI address re-map support
* Added Chassis Intrusion support

2004/01/12 s2881_103 v1.03
TYAN Thunder K8SR (S2881) V1.03
New features and Fixes :
* This is the first release BIOS