Hi, i have DELL 3040 MT , with 2-7 Amber led blinking. According DELL manual , suggests BIOS . The above files, didnt help me much. Here is the original BIOS. Service TAG: FBTGD82 .
Please try dell optiplex 3040 fix bios below and reply Dell OPILEX 3040 ,14056-1 working bios, 16MB bios bin file.zip