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# J-BOND COMPUTER SYSTEMS CORPORATION
PCI400C-C
Processor UMCU5S/UMCU5SD/SL80486SX/SL80486SX2/SL80486DX2/
CX486DX2/AM486DX2/AM486DXL2/SL80486DX2/SL80486DX2(ODP)/CX486DX4/AM486DX4/AM486DX4(WB)/SL80486DX4/P24T/CX5X86
Processor 25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set SIS
Video Chip None
Set
Maximum 128MB
Onboard
Memory
Maximum None
Video
Memory
Cache 128/256/512/1024KB
BIOS Award
Dimensions 279mm x 220mm
I/O 32-bit PCI slots (3), floppy drive interface, game interface, green PC connector, IDE interfaces (2),
Options parallel port, serial ports (2)
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Parallel port | CN1 | Reset switch | J3 |
|-------------------+----------+------------------+----------|
| Game interface | CN2 | Green PC | J4 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Floppy drive | CN3 | Turbo LED | J5 |
| interface | | | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN4 | Green PC LED | J6 |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN5 | Turbo switch | J7 |
|-------------------+----------+------------------+----------|
| IDE interface | CN6 | Power LED & | J8 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| IDE interface | CN7 | Green PC | JP8 |
| | | connector (I/O) | |
|-------------------+----------+------------------+----------|
| External battery | J1 | 32-bit PCI slots | PC1 - |
| | | | PC3 |
|-------------------+----------+------------------+----------|
| Speaker | J2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+-------+---------------|
| » | Factory configured - do not | JC5 | Open |
| | alter | | |
|---+--------------------------------+-------+---------------|
| | CPU type select SL | JC7 | Open |
| | AM486DX4-120 WB (3v) | | |
|---+--------------------------------+-------+---------------|
| | CPU type select SL AM5X86-133 | JC7 | Closed |
| | WB (3.45v) | | |
|---+--------------------------------+-------+---------------|
| » | Factory configured - do not | JP1 | Unidentified |
| | alter | | |
|---+--------------------------------+-------+---------------|
| » | Green PC select STP.CLK | JP6 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | Green PC select SMI OUT | JP6 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| » | Flash BIOS normal operation | JP16 | Pins 2 & 3, 4 |
| | | | & 5 closed |
|---+--------------------------------+-------+---------------|
| | Flash BIOS update at boot | JP16 | Pins 1 & 2, 5 |
| | | | & 6 closed |
|---+--------------------------------+-------+---------------|
| » | CMOS memory normal operation | JP17 | Open |
|---+--------------------------------+-------+---------------|
| | CMOS memory clear | JP17 | Closed |
|---+--------------------------------+-------+---------------|
| » | Battery type select internal | JP18 | Closed |
|---+--------------------------------+-------+---------------|
| | Battery type select external | JP18 | Open |
|---+--------------------------------+-------+---------------|
| » | Factory configured - do not | JP19 | Unidentified |
| | alter | | |
|---+--------------------------------+-------+---------------|
| » | Parallel port IRQ select IRQ7 | JP30 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | Parallel port IRQ select IRQ5 | JP30 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| » | Floppy drive interface enabled | JP32 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | Floppy drive interface | JP32 | Pins 2 & 3 |
| | disabled | | closed |
|---+--------------------------------+-------+---------------|
| » | Game port enabled | JP35 | Closed |
|---+--------------------------------+-------+---------------|
| | Game port disabled | JP35 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+--------------+------------+------------+------------|
| 1MB | (1) 256K x | None | None | None |
| | 36 | | | |
|------+--------------+------------+------------+------------|
| 2MB | (1) 512K x | None | None | None |
| | 36 | | | |
|------+--------------+------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | None | None |
| | 36 | 36 | | |
|------+--------------+------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | None |
| | 36 | 36 | 36 | |
|------+--------------+------------+------------+------------|
| 4MB | (1) 1M x 36 | None | None | None |
|------+--------------+------------+------------+------------|
| 4MB | (1) 512K x | (1) 256K x | (1) 256K x | None |
| | 36 | 36 | 36 | |
|------+--------------+------------+------------+------------|
| 4MB | (1) 512K x | (1) 512K x | None | None |
| | 36 | 36 | | |
|------+--------------+------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+--------------+------------+------------+------------|
| 5MB | (1) 1M x 36 | (1) 256K x | None | None |
| | | 36 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 5MB | (1) 256K x | (1) 512K x | (1) 512K x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 512K x | (1) 512K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 9MB | (1) 256K x | (1) 1M x | (1) 1M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 9MB | (1) 256K x | (1) 2M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 2M x 36 | (1) 512K x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 11MB | (1) 2M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 2M x 36 | (1) 512K x | (1) 512K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 13MB | (1) 256K x | (1) 1M x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 14MB | (1) 2M x 36 | (1) 512K x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 14MB | (1) 512K x | (1) 1M x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 4M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 8M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 33MB | (1) 256K x | (1) 8M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 34MB | (1) 8M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 34MB | (1) 8M x 36 | (1) 512K x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 8M x 36 | (1) 512K x | (1) 512K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 44MB | (1) 8M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 8M x 36 | (1) 2M x | (1) 2M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 2M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 8M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 4M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 97MB | (1) 256K x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 98MB | (1) 512K x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 100MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 104MB | (1) 2M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 112MB | (1) 4M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | (1) 16M x | None | None |
| | 36 | 36 | | |
|------------------------------------------------------------|
| Note: Any SIMM can be installed in any slot. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-------------+---------------+---------------+--------------|
| 128KB | (4) 32K x 8 | None | (1) 8K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 16K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (B) | (4) 64K x 8 | None | (1) 16K x 8 |
|-------------+---------------+---------------+--------------|
| 512KB (A) | (4) 128K x 8 | None | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 512KB (B) | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 64K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP9 | JP10 | JP11 | JP12 | JP13 |
|-----------+--------+--------+-------+-------+--------------|
| 128KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2, 3 & 4 |
|-----------+--------+--------+-------+-------+--------------|
| 256KB (A) | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3, 4 & 5 |
|-----------+--------+--------+-------+-------+--------------|
| 256KB (B) | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2, 3 & 4 |
|-----------+--------+--------+-------+-------+--------------|
| 512KB (A) | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2, 3 & 4 |
|-----------+--------+--------+-------+-------+--------------|
| 512KB (B) | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3, 4 & 5 |
|-----------+--------+--------+-------+-------+--------------|
| 1MB | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3, 4 & 5 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP3 | JP4 | JP5 |
|---------------+---------------+---------------+------------|
| 25MHz | Open | Open | Open |
|---------------+---------------+---------------+------------|
| 33MHz | Closed | Closed | Open |
|---------------+---------------+---------------+------------|
| 40MHz | Open | Closed | Open |
|---------------+---------------+---------------+------------|
| 50iMHz | Open | Open | Open |
|---------------+---------------+---------------+------------|
| 66iMHz | Closed | Closed | Open |
|---------------+---------------+---------------+------------|
| 75iMHz | Open | Open | Open |
|---------------+---------------+---------------+------------|
| 100iMHz | Closed | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JC1 | JC2 | JC3 | JC4 | JC6 |
|------------------+-------+------+----------+-------+-------|
| UMC U5S | 2 & 3 | Open | Open | Open | Open |
|------------------+-------+------+----------+-------+-------|
| UMC U5SD | 2 & 3 | Open | Open | Open | Open |
|------------------+-------+------+----------+-------+-------|
| SL80486SX (5v) | 2 & 3 | Open | 3 & 4 | Open | Open |
|------------------+-------+------+----------+-------+-------|
| SL80486SX2 (5v) | 2 & 3 | Open | 3 & 4 | Open | Open |
|------------------+-------+------+----------+-------+-------|
| SL80486DX (5v) | 2 & 3 | Open | 3 & 4 | Open | Open |
|------------------+-------+------+----------+-------+-------|
| CX486DX2 (5v) | 2 & 3 | Open | 2 & 3 | Open | Open |
|------------------+-------+------+----------+-------+-------|
| AM486DX2 | 2 & 3 | Open | Open | Open | Open |
|------------------+-------+------+----------+-------+-------|
| AM486DXL2 (3.3v) | 2 & 3 | Open | Open | Open | Open |
|------------------+-------+------+----------+-------+-------|
| SL80486DX2 (5v) | 2 & 3 | Open | 3 & 4 | Open | Open |
|------------------+-------+------+----------+-------+-------|
| SL80486DX2 (ODP) | 2 & 3 | Open | 3 & 4 | Open | Open |
|------------------+-------+------+----------+-------+-------|
| CX486DX4 (3.3v) | 2 & 3 | Open | 2 & 3 | Open | Open |
|------------------+-------+------+----------+-------+-------|
| AM486DX4 (3v) | 2 & 3 | Open | Open | Open | Open |
|------------------+-------+------+----------+-------+-------|
| AM486DX4 (WB 3v) | 2 & 3 | Open | 1 & 2, 3 | Open | 4 & 5 |
| | | | & 4 | | |
|------------------+-------+------+----------+-------+-------|
| SL80486DX4 | 2 & 3 | Open | 3 & 4 | Open | Open |
|------------------+-------+------+----------+-------+-------|
| SL80486DX4 (3v) | 2 & 3 | Open | 3 & 4 | Open | Open |
|------------------+-------+------+----------+-------+-------|
| P24T | 2 & 3 | Open | 3 & 4 | 1 & 2 | Open |
|------------------+-------+------+----------+-------+-------|
| CX5X86 (3v) | 2 & 3 | Open | 1 & 2, 3 | Open | 2 & 3 |
| | | | & 4 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JC8 | JC9 | JC10 | JC11 |
|------------------+--------+--------+--------------+--------|
| UMC U5S | 3 & 4 | Open | 1 & 2 | Open |
|------------------+--------+--------+--------------+--------|
| UMC U5SD | 3 & 4 | Open | 1 & 2 | Open |
|------------------+--------+--------+--------------+--------|
| SL80486SX (5v) | Open | 2 & 3 | 3 & 4 | 4 & 5 |
|------------------+--------+--------+--------------+--------|
| SL80486SX2 (5v) | Open | 2 & 3 | 3 & 4 | 4 & 5 |
|------------------+--------+--------+--------------+--------|
| SL80486DX (5v) | Open | 2 & 3 | 3 & 4 | 4 & 5 |
|------------------+--------+--------+--------------+--------|
| CX486DX2 (5v) | 2 & 3 | 1 & 2 | 3 & 4 | 2 & 3 |
|------------------+--------+--------+--------------+--------|
| AM486DX2 | Open | Open | 3 & 4 | Open |
|------------------+--------+--------+--------------+--------|
| AM486DXL2 (3.3v) | 3 & 4 | 4 & 5 | 1 & 2, 3 & 4 | Open |
|------------------+--------+--------+--------------+--------|
| SL80486DX2 (5v) | Open | 2 & 3 | 3 & 4 | 4 & 5 |
|------------------+--------+--------+--------------+--------|
| SL80486DX2 (ODP) | Open | 2 & 3 | 3 & 4 | 4 & 5 |
|------------------+--------+--------+--------------+--------|
| CX486DX4 (3.3v) | 2 & 3 | 1 & 2 | 3 & 4 | 2 & 3 |
|------------------+--------+--------+--------------+--------|
| AM486DX4 (3v) | Open | Open | 3 & 4 | Open |
|------------------+--------+--------+--------------+--------|
| AM486DX4 (WB 3v) | Open | 2 & 3 | 3 & 4 | 4 & 5 |
|------------------+--------+--------+--------------+--------|
| SL80486DX4 | Open | 2 & 3 | 2 & 3 | 1 & 2 |
|------------------+--------+--------+--------------+--------|
| SL80486DX4 (3v) | Open | 2 & 3 | 3 & 4 | 4 & 5 |
|------------------+--------+--------+--------------+--------|
| P24T | Open | 2 & 3 | 2 & 3 | 1 & 2 |
|------------------+--------+--------+--------------+--------|
| CX5X86 (3v) | Open | 2 & 3 | 3 & 4 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JC12 | JC13 | JC14 | JC15 |
|------------------+--------+--------------+--------+--------|
| UMC U5S | 1 & 2 | 2 & 3 | Open | Open |
|------------------+--------+--------------+--------+--------|
| UMC U5SD | 1 & 2 | 3 & 4 | Open | Open |
|------------------+--------+--------------+--------+--------|
| SL80486SX (5v) | 1 & 2 | 2 & 3 | Open | Open |
|------------------+--------+--------------+--------+--------|
| SL80486SX2 (5v) | 1 & 2 | 2 & 3 | Open | Open |
|------------------+--------+--------------+--------+--------|
| SL80486DX (5v) | 1 & 2 | 1 & 2, 3 & 4 | Open | Open |
|------------------+--------+--------------+--------+--------|
| CX486DX2 (5v) | 1 & 2 | 1 & 2, 3 & 4 | 2 & 3 | Open |
|------------------+--------+--------------+--------+--------|
| AM486DX2 | Open | 1 & 2, 3 & 4 | Open | Open |
|------------------+--------+--------------+--------+--------|
| AM486DXL2 (3.3v) | 1 & 2 | 1 & 2, 3 & 4 | Open | 2 & 3 |
|------------------+--------+--------------+--------+--------|
| SL80486DX2 (5v) | 1 & 2 | 1 & 2, 3 & 4 | Open | Open |
|------------------+--------+--------------+--------+--------|
| SL80486DX2 (ODP) | 1 & 2 | 1 & 2, 3 & 4 | Open | Open |
|------------------+--------+--------------+--------+--------|
| CX486DX4 (3.3v) | 1 & 2 | 1 & 2, 3 & 4 | 2 & 3 | Open |
|------------------+--------+--------------+--------+--------|
| AM486DX4 (3v) | Open | 1 & 2, 3 & 4 | Open | Open |
|------------------+--------+--------------+--------+--------|
| AM486DX4 (WB 3v) | 1 & 2 | 1 & 2, 3 & 4 | 1 & 2 | Open |
|------------------+--------+--------------+--------+--------|
| SL80486DX4 | 1 & 2 | 1 & 2, 3 & 4 | Open | Open |
|------------------+--------+--------------+--------+--------|
| SL80486DX4 (3v) | 1 & 2 | 1 & 2, 3 & 4 | Open | Open |
|------------------+--------+--------------+--------+--------|
| P24T | 1 & 2 | 1 & 2, 3 & 4 | Open | Open |
|------------------+--------+--------------+--------+--------|
| CX5X86 (3v) | 1 & 2 | 1 & 2, 3 & 4 | 1 & 2 | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | Q5 |
|--------------------------+---------------------------------|
| 3.3v | Open |
|--------------------------+---------------------------------|
| 5v | Pins 1 & 2, 3 & 4, 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JP26 | JP27 |
|------------------+--------------------+--------------------|
| | 1 | Pins 1 & 2 closed | Pins 1 & 2 closed |
|----+-------------+--------------------+--------------------|
| » | 3 | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | JP24 | JP25 | JP29 | JP31 |
|---------------+-----------+----------+----------+----------|
| » | EPP mode | Pins 2 & | Pins 1 & | Pins 1 & | Open |
| | | 3 closed | 2 closed | 2 closed | |
|---+-----------+-----------+----------+----------+----------|
| | LPT1 | Pins 2 & | Pins 2 & | Pins 1 & | Any |
| | (378h) | 3 closed | 3 closed | 2 closed | setting |
|---+-----------+-----------+----------+----------+----------|
| | ECP/EPP | Pins 1 & | Pins 2 & | Pins 1 & | Open |
| | | 2 closed | 3 closed | 2 closed | |
|---+-----------+-----------+----------+----------+----------|
| | EXT, 2 | Pins 1 & | Pins 1 & | Pins 1 & | Open |
| | FDD | 2 closed | 2 closed | 2 closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | JP20 |
|----------------------------+-------------------------------|
| COM1 (3F8h) | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Disabled | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | JP22 |
|----------------------------+-------------------------------|
| COM2 (2F8h) | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Disabled | Pins 2 & 3 closed |
+------------------------------------------------------------+