HAUPPAUGE COMPUTER WORKS, INC.
4860 MOTHERBOARD
Processor |
80486DX/i860 |
Processor Speed |
25/33MHz |
Chip Set |
Intel |
Max. onboard DRAM |
32MB |
Cache |
None |
BIOS |
Unidentified |
Dimensions |
330mm x 218mm |
I/O Options |
Parallel port, serial ports (2) |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Reset switch |
J9 |
Speaker |
J19 |
Turbo LED/switch |
J11 |
Keylock & power LED |
J20 |
Serial port 1 |
J13 |
External battery |
J21 |
Serial port 2 |
J14 |
PS/2 mouse interface |
J23 |
Parallel port |
J15 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
I860 interrupt select 61.7911msec |
JP1 |
Pins 2 & 3 closed |
I860 timer interrupt select 30.8955msec |
JP1 |
Pins 1 & 2 closed | |
» |
Turbocache not installed |
JP2 |
Closed |
Turbocache installed |
JP2 |
Open | |
» |
IRQ12 disabled |
JP3 |
Pins 1 & 2 closed |
IRQ12 enabled |
JP3 |
Pins 2 & 3 closed | |
» |
Serial port 1 address COM1 select |
JP4 |
Pins 1 & 2 closed |
Serial port 1 address COM3 select |
JP4 |
Pins 2 & 3 closed | |
» |
IRQ4 enabled |
JP5 |
Closed |
IRQ4 disabled |
JP5 |
Open | |
» |
Serial port 2 address COM2 select |
JP6 |
Pins 1 & 2 closed |
Serial port 2 address COM4 select |
JP6 |
Pins 2 & 3 closed | |
» |
IRQ3 enabled |
JP7 |
Closed |
IRQ3 disabled |
JP7 |
Open | |
» |
Parallel port address LPT2 select |
JP8 |
Pins 2 & 3 closed |
Parallel port address LPT1 select |
JP8 |
Pins 1 & 2 closed | |
» |
IRQ7 enabled |
JP9 |
Closed |
IRQ7 disabled |
JP9 |
Open | |
» |
Factory configured-do not alter |
JP12 |
Closed |
» |
Factory configured-do not alter |
JP13 |
Pins 2 & 3 closed |
» |
25MHz CPU speed select |
JP14 |
Closed |
33MHZ CPU speed select |
JP14 |
Open | |
» |
Write-protected caching by 486 & Turbocache |
JP15 |
Open |
Write protected caching by Turbocache only |
JP15 |
Closed | |
» |
Factory configured-do not alter |
JP17 |
Open |
» |
64-bit slot write select CPUWR# |
JP18 |
Pins 2 & 3 closed |
64-bit slot write select BCPUWR# |
JP18 |
Pins 1 & 2 closed | |
» |
Monitor type select monochrome |
SW1 |
Open |
Monitor type select color |
SW1 |
Pins 2 & 3 closed | |
Burn-in test enable |
SW1 |
Pins 1 & 2 closed |
MOUSE/KEYBOARD BIOS CONFIGURATION | |||||
Setting |
JP11A |
JP11B |
JP11C |
JP11D |
JP11E |
XT keyboard |
Open |
Open |
Closed |
Closed |
Closed |
Mouse, AT keyboard |
Closed |
Closed |
Open |
Open |
Open |
No mouse installed |
Open |
Open |
Closed |
Closed |
Closed |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
4MB |
(2) 512K x 36 |
(2) 512K x 36 |
(2) 512K x 36 |
(2) 512K x 36 |
4MB |
(2) 1MB x 36 |
(2) 1MB x 36 |
NONE |
NONE |
4MB |
(2) 2MB x 36 |
NONE |
NONE |
NONE |
6MB |
(2) 1MB x 36 |
(2) 1MB x 36 |
(2) 1MB x 36 |
NONE |
8MB |
(2) 1MB x 36 |
(2) 1MB x 36 |
(2) 1MB x 36 |
(2) 1MB x 36 |
8MB |
(2) 2MB x 36 |
(2) 2MB x 36 |
NONE |
NONE |
8MB |
(2) 4MB x 36 |
NONE |
NONE |
NONE |
12MB |
(2) 2MB x 36 |
(2) 2MB x 36 |
(2) 2MB x 36 |
NONE |
16MB |
(2) 4MB x 36 |
(2) 4MB x 36 |
NONE |
NONE |
16MB |
(2) 2MB x 36 |
(2) 2MB x 36 |
(2) 2MB x 36 |
(2) 2MB x 36 |
16MB |
(2) 8M x 36 |
NONE |
NONE |
NONE |
32MB |
(2) 8M x 36 |
(2) 8M x 36 |
NONE |
NONE |