NOTE:  You must use the "flashv73" BIOS flash utility.  When flashing your  BIOS please use the command below :

flashv73 <name of .bin file> /py/sn/f/cc/r

py = program yes
sn = save no
f = flash
cc = clear cmos
r = reboot

All switches are necessary when flashing the BIOS

1/26/00

V98W106C.exe

TYAN TRINITY ATX  V1.06c    A0499
New Features & Fixes :
Added large drive support up to 36GB

6/21/99

V98W104.exe

TYAN TRINITY ATX  V1.04a    052199
New Features & Fixes :
First release BIOS for S1598. Supports K6-2 & K6-3 up to 450 MHz, and support ATA66 IDE drive.

flashv73.zip

Get the latest flash utilities here: Flash Utility