Thanks to Yoh Jinno for sending me this email:

SOYO´ svba-2ba8.bin BIOS FOR SY6VBA133 has a strange behavior.
First, my machine has a dual boot (windows 2000 and windows 2000 -as a backup-resucue purpose).
Installed
SVBA-2ba8.bin over SVBA-2ba3.bin
All worked fine.

I have formatted backup version of Windows 2000 and started a new install of basic windows 2000.
first I noticed
1: Plug and Play detection took enormously (abnormally) long. More than 40 minutes.
2: After Windows 2000 installation is over, I switched resolution from 640 to 1024.
reboot.
It is still 640 x480. No matter How many times I changed, it does not change.

3:Strangely, many registry related matters went wrong. 128bit upgrade from Windows update does not
change IE from 56bit.

Booted to Windows 2000 (another partition)
Nothing is wrong. It runs as usual.

Changed Bios to older SVBA-2ba3.bin.
Reformatted newly created windows 2000 and started W2K installation.
Installation goes without any problems....Resolution change ...has no problems.. 128bit upgrade
no problem.

The only logical thing I can think of is
1: This Bios update has no effect whatsoever if OS is already is there.
(Note for a test, I installed Windows 98 to C drive.... it has no problems with this new Bios. It chokes only to
Windows 2000.)

2: If OS must be installed, it chokes.
3: if OS is transferred from backup, ( Like Ghost, Drive Image), there is no problem.

I have reported this to SOYO.

Yoh Jinno