Mitsubishi Electric APRICOT 340 Owner's Handbook Manual page 62

A d d i n g E x p a n s i o n C a r d s
Slot Type
Slot 3 (upper) PCI/ISA
Slot 2 (middle) ISA
Slot 1 (lower) ISA
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Description
This slot can accommodate a full-length PCI or ISA
card (a full-length card is one that runs the full
length of the computer from front to back).
If you are installing a drive controller card that you
want to connect to a drive in the removable-media
drive bay, it is easiest to install the card in the top
slot.
This slot can accommodate a full-length ISA card.
In cacheless systems, this is a half-length slot (only
half-length because the processor gets in the way).
If a cache module upgrade is fitted (see the chapter
on "Upgrading") this reduces the space even further
so that only very short or very thin cards can be
accommodated. In Apricot LS340 systems, the lower
slot may be occupied by a LOC Technology card.