& K D S W H USystem BoardSystem Board1-1This high-performance, 32-bit personal computer system is based onthe 486 series microprocessor. It features the single-chip upgradetechnology which allows maximum ease and flexibility for upgradingthe system. It is fully compatible with the IBM PC/AT and is suitablefor use as a Windows workstation, CAD/CAE/CAM workstation, UNIXpersonal workstation or desktop PC.The system board accommodates an ISA riser card slot and two 72-pin SIMM sockets that can hold a maximum memory of 36 MB. Thesystem architecture is based on the VESA local bus featuring anonboard VGA. The VGA memory is expandable to 1 MB or 2 MB.In a LAN environment, the system supports 16-bit Arcnet cards,Ethernet cards and Token Ring cards. It is fully compatible with NovellNetWare and Microsoft LAN Manager and also with SCO UNIX,XENIX and OS/2 operating systems.The system has a number of software-controlled security features.These include power-on password, disk drive read/write control,diskette boot control, serial- and parallel-port control, and a systemsetup control.Installing options such as memory modules, expansion boards and anupgrade CPU enhance system performance. This chapter gives step-by-step instructions on how to install these options.