American Megatrends Enterprise-III User Manual page 8

American Megatrends VL-Bus Implementation,
Continued
The following graphic shows the EISA and VL-Bus expansion slots. You can install 8-bit or 16-bit ISA or
32-bit EISA adapter cards in any expansion slot, including the VL-Bus slots. The VL-Bus expansion slots
are EISA non-bus mastering slots but have full VL-Bus bus mastering capabilities.
EISA or ISA adapter card will have no VL-Bus functionality when installed in a VL-Bus expansion slot.
The current VL-Bus expansion socket specification includes a 16-bit MCA® (Micro Channel Architecture)
expansion socket inline with a standard 32-bit EISA expansion socket connector.
A future VL-bus specification will use a 32-bit MCA connector (a total of 64 bits). The VL-Bus
specification supports 32-bit EISA adapter cards.
Enterprise-III EISA VLB Motherboard User's Guide
3