The Demeter 800-D layout is slightly different now. Not the main power module, but slightly different form factor hand made Monique interface boards accompany it. Same circuits - different boards.
A new fan, lighter duty is now positioned to the left. We found we didn't need a high flow rate due to the passive ventilation in the rack mount. Hence less noise when the fan is turned on. James confirmed that we did not need a fan at all in the Aluminum "Tardis" version.
Other than that it is pretty much the same. I'll post some newer "innards" pictures when I have them ready for the camera. Seems very personal.