mounting 3050 in 3040 case might work although psu are not interchangeable.  3040 has 8 pin, 3050 6 pin. [IMAGE] 3040 MT 3040  [IMAGE] 3050MT Height350.52 mm (13.8 inches) Width154. mm (6.1 inches) Depth274.32 mm (10.8 inches) [IMAGE] 3040 [IMAGE] 3050
Will it swap, no worries? Or are the bolt holes in different spots and perhaps wiring harness from the PSU isn't long enough or other little things? Does the front panel and back panel I/O line up right? I'm thinking of upgrading this box since I'm having random freezes with no activity on the pc after several minutes up to 30 minutes sometimes. The only thing I haven't swapped out is the power supply, motherboard, and cpu.
Optiplex 3050 motherboard in 3040 case?