Steve, what format (min-tower, desktop, SFF) is your Opti 990?
Lots on used market but there can be subtle diffs between same model format.
Never mind. Found svc tag in doc you posted. It says it's a mini-tower.
Please do forgive my newbie question, but i need to be sure before buying this tower. but it seems that the processor is no longer available and wanted to ask if changing it to Intel xeon family E5-26XX V3 and upgrade the RAM to 2 x 8 GB DIMM Registered might cause problems with qubes installation or operation? also as far as I know the hard disk cages as in inches and types (LFF or SFF) do not affect qubes, Right?