Hardware Configuration Setting
3303788
User’s Manual
2-2
CPU Jumper Setting Table (SW1)
SW1
DIP switch settings for CPU core/bus ratio
SW-1 SW-2 SW-3 SW-4 CORE/BUS RATIO
OFF
OFF
ON
OFF
1.5x
OFF
OFF
OFF
OFF
2.0x
ON
ON
ON
ON
2.0x
ON
OFF
ON
ON
2.5x
ON
ON
OFF
ON
3.0x
ON
OFF
OFF
ON
3.5x
ON
ON
ON
OFF
4.0x
ON
OFF
ON
OFF
4.5x
ON
ON
OFF
OFF
5.0x
ON
OFF
OFF
OFF
5.5x
!
OFF
ON
ON
ON
6.0x
OFF
OFF
ON
ON
6.5x
OFF
ON
OFF
ON
7.0x
OFF
OFF
OFF
ON
7.5x
OFF
ON
ON
OFF
8.0x
OFF
ON
OFF
OFF
Reserved
NOTE : For system stability, do not arbitrarily set CPU to run over speed unless
you can handle BIOS parameters.
Disk-On-Chip Jumper Setting (JP8)
1 – 2 3 – 4 5 – 6 7 – 8 Memory Address Window
Short
NC
NC
NC
D0000 – D1FFF
!
NC
Short
NC
NC
D2000 – D3FFF
NC
NC
Short
NC
D4000 – D5FFF
NC
NC
NC
Short
D6000 – D7FFF
Watch-Dog Timer Jumper Setting (JP4, JP5, JP6, JP7, JP9)
JP4
NC : Enabled WDT function
Short : Disabled WDT function
!
JP5
NC : Allocate I/O port 0533H/0033H for programming of H/W WDT
!
Short : Allocate I/O port 0543H/0343H for programming of H/W WDT