7IWM BIOS files explanation The 7IWM board comes in two versions, the 7IWM and the 7IWM/L, please make sure to download the correct BIOS file for your motherboard. 7IWM BIOS files 7iwm0617.bin checksum: 2350 release date: 07/08/1999 BIOS revision: 7IWM_0617 Changes: This is the first (unofficial) BIOS release for the 7IWM board.