S.Lewis writes:
Gotta be honest and say that I don't know. Most Dimension/Optiplex
units pull air over the passive heatsink and exhaust it out of the
case.

Thanks Stew. I'm going with what seems the logical approach and making the
fan at the front vent an intake (which it was already configured to be on
both machines), and all the fans on the back side exhaust.

If it catches fire, I'll try something different.

Michael Roper