http://www.jetway.com.tw/evisn/download/index.htm
VXA-A7.BIN (For Winbond 8738 I/O chip , 131K,Ver A7,08/06/98)
08/05/1998-i430VX-2A59GJ1CC-00
V.656VXA A7 08-05-1998
VXA-U5.BIN (For UMC I/O chip , 131K,Ver A7,08/06/98)
08/05/1998-i430VX,UMC866-2A59GJ1AC-00
V.656VXA U5 08-05-1998
VXB-C05.BIN (For GOLDSTAR I/O chip , 131K,Ver C05,08/06/98)
10/28/97-i430VX,PRIME3C-2A59GJ1BC-00
V.656VXB C5 10-28-1997
VXB-D7.BIN (For SMC 665 I/O chip , 131K,Ver A7,08/06/98)
08/05/1998-i430VX-2A59GJ1CC-00
V.656VXB D7 08-05-1998
VXC-M5.BIN (For SMC 669 I/O chip , 131K,Ver M5,08/06/98)
08/05/1998-i430VX-2A59GJ1CC-00
V.656VXC M5 08-05-1998
VXC-S7.BIN (For SMC 665 I/O chip , 131K,Ver S7,08/06/98)
08/05/1998-i430VX-2A59GJ1CC-00
V.656VXC S7 08-05-1998
VXC-W2.BIN (For WINBOND 877 I/O chip , 131K,Ver W2,08/06/98)
08/05/1998-i430VX-2A59GJ1CC-00
V.656VXC W2 08-05-1998
VXD-M50.BIN (For SMC 669 I/O chip , 131K,Ver M5,08/06/98)
08/03/1998-i430VX-2A59GJ1DC-00
V.656VXD M5.0 08-03-1998
VXD-S60.BIN (For SMC 665 I/O chip , 131K,Ver S6,08/06/98)
08/03/1998-i430VX-2A59GJ1CC-00
V.656VXD S6.0 08-03-1998
And they probably all can be patched up to 128GB.