CORPORATE SERIES 386/486 (VER. E & LATER) Motherboard Settings and Configuration
HYUNDAI ELECTRONICS, INC.
CORPORATE SERIES 386/486 (VER. E & LATER)
Processor | 80386DX/80486SX/80486DX |
Processor Speed | 20/25/33/40/50MHz |
Chip Set | Northport/VLSI |
Max. Onboard DRAM | 64MB |
Cache | 64/256KB (on CPU card) |
BIOS | AMI |
Dimensions | 355.6mm x 304.8mm |
I/O Options | Serial ports (2), parallel port, floppy drive interface, IDE interface, proprietary CPU card slot |
NPU Options | 80387/3167/4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Proprietary CPU card | CPU1 | Serial port 1 | J9 |
External battery | J2 | Serial port 2 | J10 |
Turbo LED | J4 | Parallel port | J15 |
Power LED & keylock | J5 | Floppy drive interface | J16 |
Reset switch | J6 | IDE interface | J17 |
IDE interface LED | J8 | Speaker | J19 |
Note: Although the CPU card supports a 50MHz processor, only a 40MHz 386DX, a 20MHz 486SX, and a 33MHz 486DX version are sold by Hyundai. | |||
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | Factory configured - do not alter | SW1 pins 1 & 2 | Open |
» | Factory configured - do not alter | SW1 pins 3 & 4 | Closed |
» | Factory configured - do not alter | SW1 pins 5 & 6 | Closed |
» | Video BIOS shadowing enabled | SW1 pins 7 & 8 | Closed |
| Video BIOS shadowing disabled | SW1 pins 7 & 8 | Open |
» | SCSI BIOS shadowing disabled | SW1 pins 9 & 10 | Open |
| SCSI BIOS shadowing enabled | SW1 pins 9 & 10 | Closed |
» | ROM BIOS shadowing enabled | SW1 pins 11 & 12 | Closed |
| ROM BIOS shadowing disabled | SW1 pins 11 & 12 | Open |
» | Serial port 2 interrupt select IRQ3 | SW2 pins 1 & 2 | Closed |
| Serial port 2 interrupt select none | SW2 pins 1 & 2 | Open |
» | Serial port 1 interrupt select IRQ4 | SW2 pins 3 & 4 | Closed |
| Serial port 1 interrupt select none | SW2 pins 3 & 4 | Open |
» | Floppy drive interface enabled | SW3 pins 1 & 2 | Open |
| Floppy drive interface enabled | SW3 pins 1 & 2 | Closed |
» | Serial port 2 select COM2/2F8h | SW3 pins 3 & 4 | Open |
| Serial port 2 disabled | SW3 pins 3 & 4 | Closed |
» | Serial port 1 select COM1/3F8h | SW3 pins 5 & 6 | Open |
| Serial port 1 disabled | SW3 pins 5 & 6 | Closed |
» | BIOS cache location select 486DX internal cache | SW4/3 | On |
| BIOS cache location select external cache | SW4/3 | Off |
» | BIOS (E000-EFFFh) shadowing enabled | SW4/4 | On |
| BIOS (E000-EFFFh) shadowing disabled | SW4/4 | Off |
» | DRAM transparent refresh enabled | SW4/5 | On |
| DRAM transparent refresh disabled | SW4/5 | Off |
» | Factory configured - do not alter | SW5/1 | Off |
» | Factory configured - do not alter | SW5/2 | On |
» | IDE interface interrupt select IRQ14 | SW21 | On |
| IDE interface interrupt select none | SW21 | Off |
» | Floppy drive precompensation select standard | W2 | pins 2 & 3 closed |
| Floppy drive precompensation select alternate | W2 | pins 1 & 2 closed |
» | CPU speed select fast/switchable from keyboard | W3 | pins 2 & 3 closed |
| CPU speed select fast | W3 | Open |
| CPU speed select slow | W3 | pins 1 & 2 closed |
» | Monitor type select color | W4 | pins 2 & 3 closed |
| Monitor type select monochrome | W4 | pins 1 & 2 closed |
» | CMOS memory normal operation | W7 | Open |
| CMOS memory clear | W7 | Closed |
» | Parallel port mode select bi-directional | W13 | pins 2 & 3 closed |
| Parallel port mode select input only | W13 | pins 1 & 2 closed |
» | Floppy drive type select single-speed | W18 | pins 1 & 2 closed |
| Floppy drive type select dual-speed | W18 | pins 2 & 3 closed |
USER CONFIGURABLE SETTINGS (CON'T) | |||
Function | Jumper/Switch | Position | |
» | BIOS type select 27256 | W19 | pins 2 & 3 closed |
| BIOS type select 27512 | W19 | pins 1 & 2 closed |
» | IDE interface enabled | W20 | Open |
| IDE interface disabled | W20 | Closed |
Note: The locations of SW4 & SW5 are unidentified. | |||
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (4) 256K x 9 | NONE | NONE | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 | NONE | NONE |
4MB | (4) 1M x 9 | NONE | NONE | NONE |
6MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
10MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 |
12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE | NONE | NONE |
24MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
36MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
40MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
DRAM JUMPER CONFIGURATION | |||||
Size | SW1 | W5 | W6 | W28 | W29 |
1MB | 13 & 14, 15 & 16, 17 & 18, 19 & 20 | 2 & 3 | 2 & 3 | Open | Open |
2MB | 13 & 14, 17 & 18, 19 & 20 | 2 & 3 | 2 & 3 | Open | Open |
4MB | 13 & 14, 15 & 16, 17 & 18 | 1 & 2 | 2 & 3 | Open | Open |
6MB | 15 & 16, 17 & 18, 19 & 20 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 |
8MB | 13 & 14, 17 & 18 | 1 & 2 | 2 & 3 | Open | Open |
10MB | 17 & 18, 19 & 20 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 |
12MB | 15 & 16, 17 & 18 | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 |
16MB | 17 & 18 | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 |
16MB | 13 & 14, 15 & 16 | 1 & 2 | 2 & 3 | Open | Open |
24MB | 15 & 16, 19 & 20 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 |
32MB | 13 & 14 | 1 & 2 | 1 & 2 | Open | Open |
36MB | 15 & 16 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 |
40MB | 19 & 20 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 |
48MB | 15 & 16 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
64MB | Open | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
Note: Pins designated should be in the closed position. | |||||
PARALLEL PORT IRQ CONFIGURATION | |
IRQ | SW2 |
IRQ7 | pins 7 & 8 closed |
IRQ5 | pins 5 & 6 closed |
PARALLEL PORT CONFIGURATION | |
IRQ | SW3 |
LPT1/378h | Open |
LPT1/3BCh | pins 9 & 10 closed |
LPT2/278h | pins 7 & 8 closed |
Disabled | pins 7 & 8, 9 & 10 closed |
NONCACHEABLE CONFIGURATION | ||
Setting | SW4/1 | SW4/2 |
None | Off | Off |
256KB (3D80-3E80) | Off | Closed |
512KB (3C80-3E80) | Closed | Off |
1024KB (3A80-3E80) | Off | Off |
Note: The location of SW4 is unidentified. | ||
BUS SPEED CONFIGURATION | ||
Setting | W14 | W15 |
CPU speed/2 | pins 2 & 3 closed | Closed |
CPU speed/4 | pins 1 & 2 closed | Open |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | W2 | closed |
SRAM CONFIGURATION | ||||||
Size | Cache | TAG | U9 | SW5/switch 3 | SW5/switch 4 | W1 |
64KB | (8) 16K x 4 | (2) 16K x 4 | (1) 16K x 4 | open | open | pins 1&2 and 3&4 |
256KB | (8) 64K x 4 | (2) 64K x 4 | (1) 16K x 4 | closed | closed | open |
Note: The location of SW5 on the mainboard is unknown. Pins designated should be in the closed position. | ||||||
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
| CPU type select 80486SX | W6 | pins 1 & 2 closed |
| CPU type select 80486DX | W6 | pins 2 & 3 closed |
» | Factory configured - do not alter | W7 | Closed |
CACHE CONFIGURATION | ||
Size | Bank 0 | U21 |
64KB | (8) 16K x 4 | (1) 16K x 4 |
256KB | (8) 64K x 4 | NONE |
CACHE JUMPER CONFIGURATION | |||||
Size | SW5/3 | SW5/4 | W1 | W2 | W5 |
64KB | Off | Off | 2 & 3 | 2 & 3 | Open |
256KB | On | On | 1 & 2 | 1 & 2 | 3 & 4, 5 & 6 |
Note: The location of SW5 on the mainboard is unidentified. Pins designated should be in the closed position. | |||||
BURST MODE CONFIGURATION | |||
Setting | W3 | W4 | W5 |
Enabled | pins 2 & 3 closed | pins 2 & 3 closed | pins 1 & 2 closed |
Disabled | pins 1 & 2 closed | pins 1 & 2 closed | Open |
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