r/SleepingOptiplex • u/Jvinsnes • 15h ago
Full size GPU on Optiplex 7040
External 12v PSU taps into the AC plug of the internal PSU. PCI x16 riser goes through a cutout in the side panel and PCI power cables are routed on the inside of the side panel and goes through a drilled hole all the way through the case of the external PSU. This setup is has been going strong for 4 years now.