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# INFORMTECH INTERNATIONAL, INC.
INTEL PCI
Processor 80486SX/80487SX/80486DX/Pentium Overdrive
Processor Speed 25/33MHz
Chip Set Intel
Max. Onboard DRAM 64MB
Cache 64/128/256/512KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options 32-bit PCI bus slots (3)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| SCSI bus LED | CN1 | 32-bit PCI bus | PCI2 |
| | | slot | |
|---------------------+----------+----------------+----------|
| Turbo switch | J4 | 32-bit PCI bus | PCI3 |
| | | slot | |
|---------------------+----------+----------------+----------|
| Turbo LED | J5 | Speaker | SPK |
|---------------------+----------+----------------+----------|
| Power LED & keylock | KLOCK | Reset switch | RST |
|---------------------+----------+----------------+----------|
| 32-bit PCI bus slot | PCI1 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | CMOS | Closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | CMOS | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J9 | Closed |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | External cache installed | J17 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | External cache not installed | J17 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | SCSI terminator power source | J24 | Closed |
| | from the system | | |
|---+----------------------------------+--------+------------|
| | SCSI terminator power source | J24 | Open |
| | from peripheral device | | |
|---+----------------------------------+--------+------------|
| » | Flash EPROM 27C020 or 27C010 | JK3 | pins 1 & 2 |
| | installed | | closed |
|---+----------------------------------+--------+------------|
| | Flash EPROM 27C512 installed | JK3 | pins 2 & 3 |
| | | | closed |
|------------------------------------------------------------|
| Note:The location of CMOS jumper is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 2MB | (2) 256K x 36 | NONE |
|------------------+--------------------+--------------------|
| 4MB | (2) 256K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 4MB | (2) 512K x 36 | NONE |
|------------------+--------------------+--------------------|
| 6MB | (2) 256K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 6MB | (2) 512K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | NONE |
|------------------+--------------------+--------------------|
| 10MB | (2) 256K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 10MB | (2) 1M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 12MB | (2) 512K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 12MB | (2) 1M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | NONE |
|------------------+--------------------+--------------------|
| 18MB | (2) 256K x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 18MB | (2) 2M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 20MB | (2) 512K x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 20MB | (2) 2M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 1M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | NONE |
|------------------+--------------------+--------------------|
| 34MB | (2) 256K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 34MB | (2) 4M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 36MB | (2) 512K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 36MB | (2) 4M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | None | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 128K x 8 | None | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
|Size | J6 | J7 | J8 | J11 | J18 | J19 |
|-----+------+------+------+-----------+----------+----------|
|64KB | Open | Open | Open |pins 2 & 3 |pins 1 & 2|pins 1 & 2|
| | | | | closed | closed | closed |
|-----+------+------+------+-----------+----------+----------|
|128KB|Closed| Open | Open |pins 1 & 2 |pins 2 & 3|pins 1 & 2|
| | | | | closed | closed | closed |
|-----+------+------+------+-----------+----------+----------|
|256KB|Closed|Closed| Open |pins 1 & 2 |pins 1 & 2|pins 2 & 3|
| | | | | closed | closed | closed |
|-----+------+------+------+-----------+----------+----------|
|512KB|Closed|Closed|Closed|pins 1 & 2 |pins 2 & 3|pins 2 & 3|
| | | | | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| . CPU TYPE CONFIGURATION (CONT.) |
|------------------------------------------------------------|
| Type | J106 | J107 | J109 |
|-----------------+-----------+----------+-------------------|
| SL-enhanced CPU | Closed | Closed | pins 2 & 3 closed |
|-----------------+-----------+----------+-------------------|
| Normal CPU | N/A | N/A | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| . CPU TYPE CONFIGURATION (CONT.) |
|------------------------------------------------------------|
| Type | KC1 | KC2 | KC3 | KC4 | KC5 | JF |J20|J21|
|----------+------+------+------+------+------+------+---+---|
| 80486SX | Open | Open | Open |Closed| Open |Closed|2 &|1 &|
| | | | | | | | 3 | 2 |
|----------+------+------+------+------+------+------+---+---|
| 80487SX | Open |Closed|Closed| Open |Closed|Closed|2 &|1 &|
| | | | | | | | 3 | 2 |
|----------+------+------+------+------+------+------+---+---|
| 80486DX |Closed| Open |Closed| Open |Closed|Closed|2 &|1 &|
| | | | | | | | 3 | 2 |
|----------+------+------+------+------+------+------+---+---|
| Pentium | Open |Closed|Closed| Open |Closed| Open |2 &|1 &|
|Overdrive | | | | | | | 3 | 2 |
|------------------------------------------------------------|
|Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP3 | J12 | J13 |
|---------+----------+-------------------+-------------------|
| 25MHz | Closed | pins 1 & 2 closed | pins 2 & 3 closed |
|---------+----------+-------------------+-------------------|
| 33MHz | Closed | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE/BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | Wait states | J14 |
|------------------+--------------------+--------------------|
| £ 33MHz | 0 wait states | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| > 33MHz | 1 wait state | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI SLAVE/MASTERSLAVE CONFIGURATION |
|------------------------------------------------------------|
| Slot | Type | J102 | J103 | J104 | J105 |
|------+--------+-----------+----------+----------+----------|
| 1 | Slave | N/A | N/A | Pins 1 & | Pins 1 & |
| | | | | 2 | 2 |
|------+--------+-----------+----------+----------+----------|
| 1 | Master | N/A | N/A | Pins 2 & | Pins 2 & |
| | | | | 3 | 3 |
|------+--------+-----------+----------+----------+----------|
| 2 | Slave | N/A | N/A | Pins 2 & | Pins 2 & |
| | | | | 3 | 3 |
|------+--------+-----------+----------+----------+----------|
| 2 | Master | N/A | N/A | Pins 1 & | Pins 1 & |
| | | | | 2 | 2 |
|------+--------+-----------+----------+----------+----------|
| 3 | Slave | Pins 2 & | Pins 2 & | N/A | N/A |
| | | 3 | 3 | | |
|------+--------+-----------+----------+----------+----------|
| 3 | Master | Pins 1 & | Pins 1 & | N/A | N/A |
| | | 2 | 2 | | |
|------+--------+-----------+----------+----------+----------|
| SCSI | Slave | Pins 1 & | Pins 1 & | N/A | N/A |
| | | 2 | 2 | | |
|------+--------+-----------+----------+----------+----------|
| SCSI | Master | Pins 2 & | Pins 2 & | N/A | N/A |
| | | 3 | 3 | | |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI IRQ INTERRUPT SELECT |
|------------------------------------------------------------|
| PCI1 | J37 | J36 | J39 | J40 | J42 | J43 |
|------------+-------+-------+-------+-------+-------+-------|
| PCI-1-INTA | pins | pins | pins | pins | pins | pins |
| | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|------------+-------+-------+-------+-------+-------+-------|
| PCI-2-INTA | pins | pins | pins | pins | pins | pins |
| | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|------------+-------+-------+-------+-------+-------+-------|
| PCI-2-INTA | pins | pins | pins | pins | pins | pins |
| | 2 & 3 | 1 & 2 | 2 & 4 | 2 & 4 | 2 & 4 | 2 & 4 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
| |
| For every INTA signal, only one of IRQ5-IRQ15 should be |
| connected. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ON BOARD SCSI CONFIGURATION |
|------------------------------------------------------------|
| SCSI | J2 | J3 |
|--------------------------+----------------+----------------|
| Enabled | Closed | Closed |
|--------------------------+----------------+----------------|
| Disabled | Open | Open |
|------------------------------------------------------------|
| Note:When the on board SCSI is disconnected from the |
| power, the power cost should go down. |
+------------------------------------------------------------+