AAAAAAAAAAARGH! I hate this, everything seems to be going fine and then suddenly nothing seems to work. I've decide to focus on the BA123 housed uVax. I power it up and get no response on the terminal. The CPU board has four red LEDs (all lit) and there are three LEDs on the ethernet (also lit). The HEX display on the back of the unit says "F." The front has the red HALT light illuminated, DC OK is _not_ illuminated. My slots are : +-----------------------------+ 1 | CPU (KA630) conn | +-------------------||--------+ 2 | MEMORY 4MB conn | +-------------------||--------+ 3 | MEMORY 4MB conn | +-----------------------------+ 4 | M7516 | M9047 | +-----------------------------+ 5 | Viking QTO | - blank - | +-----------------------------+ 6 | - blank - | +-----------------------------+ 7 | WQESD (Sigma RQ11) | +-----------------------------+ 8 - 12 blank No obvious smell of smoke, just dust. What can I check ? --Chuck