Backplanes Versus Motherboards

When a backplane is acclimated with a constituent distinct lath computer (SBC) or arrangement host lath (SHB), the aggregate provides the aforementioned functionallity as a motherboard, accouterment processing power, memory, I/O and slots for constituent cards. While there are a few motherboards that action added than 8 slots, that is the acceptable limit. In addition, as technology progresses, the availability and cardinal of a accurate aperture blazon may be bound in agreement of what is currently offered by motherboard manufacturers.

On the added hand, backplane architectonics is somewhat different to the SBC technology that is acquainted into it. There are some limitations to what can be constructed, in that the SBC dent set and processor accept to accommodate the adequacy of acknowledging the aperture types. In addition, around an complete cardinal of slots can be provided with 20, including the SBC slot, as a applied admitting not an complete limit. Thus, a PICMG backplane can accommodate any cardinal and any mix of ISA, PCI, PCI-X, and PCI-e slots bound alone by the adeptness of the SBC to interface to and drive those slots. For example, an SBC with the most recent i7 processor could interface with a backplane accouterment up to 19 ISA slots to drive bequest I/O cards