All the connectors are proprietary. While it can be done its not easy.  Several connections including cpu and case fan as well as 24 pin to 8 pin power adapter are required. Its not supported here. Moddiy 3020 24 to 8 Adapter You can just solder the back side of the board to get rid of front panel error and power button error as its only 2 pins.  If your lazy like I am you buy the kit to fix this. [URL]  The thermal sensor and fans are not optional however so you will have more errors if you do not use dell fans. Adapters to other than dell fans do work but the self test will fail if fans don't go as high as 4000 rpm like some dell fans do.  Pocaton Dell Fan Adapter I use dell XG27M fans with adapters so that in the future i can re use fans without needing to modify them. The wire colors have NOTHING TO DO with voltages. [IMAGE] [IMAGE]   POWER BUTTON WIRES     [IMAGE][IMAGE][IMAGE]
I want to upgrade my dell with a gpu but the sff case is to small, so i thought maybe i could fit the mobo in a new case,i will link the one i found here So my question is will a Dell optiplex 3020 SFF Motherboard Fit in a M-ATX or ITX Case And, yes i am aware of the special power connectors.
Does a dell optiplex 3020 sff motherboard Fit in a M-atx case