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# 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
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Reset switch | J9 | Speaker | J19 |
|------------------+----------+-------------------+----------|
| Turbo LED/switch | J11 | Keylock & power | J20 |
| | | LED | |
|------------------+----------+-------------------+----------|
| Serial port 1 | J13 | External battery | J21 |
|------------------+----------+-------------------+----------|
| Serial port 2 | J14 | PS/2 mouse | J23 |
| | | interface | |
|------------------+----------+-------------------+----------|
| Parallel port | J15 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | I860 interrupt select | JP1 | Pins 2 & 3 |
| | 61.7911msec | | closed |
|---+----------------------------------+--------+------------|
| | I860 timer interrupt select | JP1 | Pins 1 & 2 |
| | 30.8955msec | | 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 | JP4 | Pins 1 & 2 |
| | select | | closed |
|---+----------------------------------+--------+------------|
| | Serial port 1 address COM3 | JP4 | Pins 2 & 3 |
| | select | | closed |
|---+----------------------------------+--------+------------|
| » | IRQ4 enabled | JP5 | Closed |
|---+----------------------------------+--------+------------|
| | IRQ4 disabled | JP5 | Open |
|---+----------------------------------+--------+------------|
| » | Serial port 2 address COM2 | JP6 | Pins 1 & 2 |
| | select | | closed |
|---+----------------------------------+--------+------------|
| | Serial port 2 address COM4 | JP6 | Pins 2 & 3 |
| | select | | closed |
|---+----------------------------------+--------+------------|
| » | IRQ3 enabled | JP7 | Closed |
|---+----------------------------------+--------+------------|
| | IRQ3 disabled | JP7 | Open |
|---+----------------------------------+--------+------------|
| » | Parallel port address LPT2 | JP8 | Pins 2 & 3 |
| | select | | closed |
|---+----------------------------------+--------+------------|
| | Parallel port address LPT1 | JP8 | Pins 1 & 2 |
| | select | | 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 & | JP15 | Open |
| | Turbocache | | |
|---+----------------------------------+--------+------------|
| | Write protected caching by | JP15 | Closed |
| | Turbocache only | | |
|---+----------------------------------+--------+------------|
| » | 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 | Closed | Closed | Open | Open | Open |
| keyboard | | | | | |
|---------------+--------+--------+--------+--------+--------|
| No mouse | Open | Open | Closed | Closed | Closed |
| installed | | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 4MB | (2) 512K x | (2) 512K x | (2) 512K x | (2) 512K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (2) 1MB x | (2) 1MB x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 4MB | (2) 2MB x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 6MB | (2) 1MB x | (2) 1MB x | (2) 1MB x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | (2) 1MB x | (2) 1MB x | (2) 1MB x | (2) 1MB x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (2) 2MB x | (2) 2MB x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 8MB | (2) 4MB x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 12MB | (2) 2MB x | (2) 2MB x | (2) 2MB x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 4MB x | (2) 4MB x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 2MB x | (2) 2MB x | (2) 2MB x | (2) 2MB x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 8M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 32MB | (2) 8M x 36 | (2) 8M x 36 | NONE | NONE |
+------------------------------------------------------------+