OptiPlex NX BIOS drivers Dell Driver Download 12 years ago BIOS - BIOS: Dell OptiPlex System BIOS, A09 - [Detail]SCSI non-RAID - Utility: Adaptec 2940U2W, v. 1.0, A01 - [Detail]. Download:File 1: 2940UWD.EXEFile 2: 2940uwdh.exe