You need to download the manual for that specific model Optiplex from Dell. However, in general, an amber light on the motherboard typically indicates that either the power supply or memory are indicating a fault. It depends upon whether or not it's flashing. You'll get this quite often when trying to "Frankenstein" a build.
All the fans work and it won’t come on the screen.You need to download the manual for that specific model Optiplex from Dell. However, in general, an amber light on the motherboard typically indicates that either the power supply or memory are indicating a fault. It depends upon whether or not it's flashing. You'll get this quite often when trying to "Frankenstein" a build.