The IIci is one of the 'soft-power-on' (what Apple calls Active Power-Control) Macs. Indeed, it was very early in the life what is now characteristic of Macs. This feature obliges that there be a trickle current (TRKL) always present, even when a Mac is shut down, waiting for the next startup.
If, when you were inning and outing NuBus cards from your IIci, you did not switch off the mains supply at the wall or power board, while leaving the cable connected so as to maintain a ground ('earth') connection for discharge of static electricity from your body, your NuBus slots/cards may have suffered. Apple always warns about this in its manuals. It is good practice for any Mac, and doubly so to remove all power, AC and DC, from NuBus Macs before installing or removing cards.
If this misfortune has struck you, and failure of two NuBus cards to work (in different slots?) is indicative if you are sure that the video card's drivers are present, you are faced with replacement of the MLB. Before you abandon hope, however, have you another, known-good NuBus card to try (with any necessary drivers already installed) in the Mac?
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If, when you were inning and outing NuBus cards from your IIci, you did not switch off the mains supply at the wall or power board, while leaving the cable connected so as to maintain a ground ('earth') connection for discharge of static electricity from your body, your NuBus slots/cards may have suffered. Apple always warns about this in its manuals. It is good practice for any Mac, and doubly so to remove all power, AC and DC, from NuBus Macs before installing or removing cards.
If this misfortune has struck you, and failure of two NuBus cards to work (in different slots?) is indicative if you are sure that the video card's drivers are present, you are faced with replacement of the MLB. Before you abandon hope, however, have you another, known-good NuBus card to try (with any necessary drivers already installed) in the Mac?
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