Main Memory Sockets
There are six
main memory module sockets, arranged in three banks (A to C), allowing
installation up to 128 MB DRAM. One bank is already occupied by the pair of
memory modules
that contain the 8 or 16 MB of memory that is fitted as standard (depending on the model of the
PC).
Video Controller and VESA Connector
There is an integrated 64-bit Ultra VGA controller (S3 Trio 64 PnP) on the PCI bus, with a
VESA connector.
External Start Connector
This connector includes the VStandby power supply line that supplies the network board with its
power whilst the rest of the PC is turned off. It also includes the control lines which the network
board uses to turn on the main power supply, and to send or receive other control and status
information.
Super I/O Chip
The
Super I/O chip, driven from the ISA bus, provides the control for two slow mass-storage
devices (any suitable combination of flexible disk and tape drives), one parallel and two serial
communications ports.
Chip-Set
The
Intel Triton 82437/8 PCI chip-set consists of four chips that interface between the three
main buses (the Processor-Local bus, the PCI bus and the ISA bus).
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The PL/PCI Bridge chip (82437FX) also provides the control for the PCI bus, L2 cache
memory, and main memory.
