VL-601 BIOS Update

PCB: 1.3
ECN No.: 16180-E-O026
BIOS Revision: 1.15IV10
BIOS type: Award
BIOS file name: iv1510.bin
Release date: Semptember 9, 1998
Flash utility: flash625.exe

Fixes:
1. Support ACPI for Award BIOS