its_edwin,

Thank you for using Dell's Community Forum.

That system has a Dell-made BIOS.

Don't quote me but I believe all Dell PCs use a Phoenix BIOS chip and Dell, or has some other company, writes the actual software use on the chip.

Dell doesn't really make anything. They just tell the manufacturer of certain components the specs and they assemble SOME stuff

Phoenix, Award, and others write the wakeup hardware interface software (BIOS) for the different chipsets.  Dell buys the Phoenix BIOS version, then customizes it to their need for a specific notebook, and releases it as a Dell BIOS version, still paying royalties to Phoenix.  At least I hope so.