they are totally different.  3040 uses 8 pin.  3070 uses 6 pin. [IMAGE] 3040 [IMAGE] 3070
Hello, I have a 3040SFF with a bad motherboard and will get (it's been shipped to me) an Optiplex 3070SFF in which I suspect the PSU is bad. Can I use the 3040 PSU in the 3070? Or is it totally different?
Optiplex 3040SFF PSU in an OPTIPLEX 3070SFF?