The is a resilient, workhorse motherboard. Updating its BIOS is not difficult, but it requires precision. Always download the correct file from Dell using your service tag, never update for cosmetic reasons, and always ensure stable power during the flash.
Do not flash a random modded BIOS from a file-sharing site. Match your exact motherboard revision (look for numbers like 100971-01 vs 100971-02 ). dell mih61r mb 100971 bios upd