Where can find bios driver for i430vx ?

[TEEMU KESKITALO]

Where can i find bios update ?
I have p51430 vx / 250 dm explorer 2 motherdoard. bios v 3.53
7/7/97 i430vx-ns306-2A59GQ1EC-00
I bought new ibm 20 Gb harddrive and bios found only 8 Gb.
I have found something like 2A59GQ1....
Can i use this version or need i excact right one?

TEEMU KESKITALO
HYVINKÄÄ
FINLAND
teemu.keskitalo@autotoivonen.fi