System Board
2-1
C h a p t e r 2
System Board
The system is a high-performance EISA machine designed with a 32/64-bit
auto-detect and auto-switch architecture. It supports both the 486-series
microprocessors and the new Pentium microprocessor, making it a long-range
performance machine.
The system features the single-chip upgrade technology that makes CPU
upgrades easy and economical, and the multiple CPU upgrade technology
that can turn it into a multiprocessor system. It is fully compatible with the
IBM PC/AT and is suitable for use as a multiuser file server, LAN file server
or a CAD/CAE/CAM workstation.
The system board holds the 128-KB system ROM, eight 32-bit EISA expansion
slots, two VESA local bus slots, a CPU board slot, four 72-pin DRAM banks,
and two SCSI connectors (for SCSI models).
Standard features such as two serial ports, one parallel port, diskette drive
interface, and embedded fixed disk drive interface also reside on the system
board.
The system has 8-MB base memory and supports a maximum memory of
256 MB using 64-MB single-density SIMMs. When using the Pentium CPU
board, the system supports up to 256-MB using 32-MB double-density SIMMs.
A graphics accelerator card can be used on the system high-speed 32-bit local
bus to enhance video display capabilities.
