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# SIMA TECHNOLOGY CO., LTD.
I430VX MAINBOARD
Processor CX M1/AM K5/Pentium
Processor Speed 75/90/100/120/133/150/166/180/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 128MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
Dimensions 254mm x 218mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), cache slot, USB connector, VRM connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+------------------+-----------|
| Serial port 1 | CN1 | Speaker | J8 |
|------------------+----------+------------------+-----------|
| Serial port 2 | CN2 | Power LED & | J9 |
| | | keylock | |
|------------------+----------+------------------+-----------|
| Parallel port | CN3 | IDE interface | J10 |
| | | LED | |
|------------------+----------+------------------+-----------|
| Floppy drive | CN4 | Reset switch | J11 |
| interface | | | |
|------------------+----------+------------------+-----------|
| IDE interface 1 | CN5 | Green PC | JP14 pins |
| | | connector | 1 & 2 |
|------------------+----------+------------------+-----------|
| IDE interface 2 | CN6 | 32-bit PCI slots | PC1 - PC4 |
|------------------+----------+------------------+-----------|
| USB connector | CN7 | Cache slot | SL1 |
|------------------+----------+------------------+-----------|
| PS/2 mouse port | J3 | VRM connector | VRM |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-----------------------------------+-------+----------------|
| » | CMOS memory normal operation | JP7 | Open |
|---+-------------------------------+-------+----------------|
| | CMOS memory clear | JP7 | Closed |
|---+-------------------------------+-------+----------------|
| » | Flash BIOS voltage select 12v | JP8 | Pins 2 & 3 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | Flash BIOS voltage select 5v | JP8 | Pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM/DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (2) 1M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 8MB | None | None | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 16MB | (2) 2M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | None | None | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | None | (2) 1M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 24MB | None | (2) 1M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 24MB | None | (2) 2M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | None | None | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | None | (2) 2M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 40MB | None | (2) 1M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 40MB | None | (2) 4M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 48MB | None | (2) 2M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 48MB | None | (2) 4M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (2) 8M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 64MB | None | None | (1) 8M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM/DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | None | (2) 4M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 72MB | (2) 1M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 72MB | None | (2) 1M x 36 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 72MB | None | (2) 8M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 80MB | None | (2) 2M x 36 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 80MB | None | (2) 8M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 4M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 96MB | None | (2) 4M x 36 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 96MB | None | (2) 8M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 128MB | None | (2) 8M x 36 | (1) 8M x 64 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP1 | JP2 |
|------------------+--------------------+--------------------|
| | 3.3v | Pins 2 & 3 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| » | 5v | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | SL1 | TAG |
|------------+---------------+-----------------+-------------|
| 256KB (A) | (2) 32K x 32 | Not installed | (1) 32K x 8 |
|------------+---------------+-----------------+-------------|
| 256KB (B) | None | 256 KB module | None |
| | | installed | |
|------------+---------------+-----------------+-------------|
| 512KB (A) | (2) 32K x 32 | 256 KB module | (1) 32K x 8 |
| | | installed | |
|------------+---------------+-----------------+-------------|
| 512KB (B) | (2) 64K x 32 | Not installed | (1) 32K x 8 |
|------------+---------------+-----------------+-------------|
| 512KB (C) | None | 512 KB module | None |
| | | installed | |
|------------------------------------------------------------|
| Note: The location of bank 0 & the TAG are unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP3 |
|----------------------------+-------------------------------|
| 256KB (A) | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 256KB (B) | Open |
|----------------------------+-------------------------------|
| 512KB (A) | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 512KB (B) | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 512KB (C) | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP5 | JP6 | JP11 | JP12 |JP13 |
| speed | speed | | | | | | |
|-------+-------+----------+------+------+------+------+-----|
| 75MHz | 50MHz | 1.5x |Closed|Closed| Open | Open |2 & 3|
|-------+-------+----------+------+------+------+------+-----|
| 90MHz | 60MHz | 1.5x |Closed| Open | Open | Open |1 & 2|
|-------+-------+----------+------+------+------+------+-----|
|100MHz | 66MHz | 1.5x | Open |Closed| Open | Open |1 & 2|
|-------+-------+----------+------+------+------+------+-----|
|120MHz | 60MHz | 2x |Closed| Open |Closed| Open |1 & 2|
|-------+-------+----------+------+------+------+------+-----|
|133MHz | 66MHz | 2x | Open |Closed|Closed| Open |1 & 2|
|-------+-------+----------+------+------+------+------+-----|
|150MHz | 60MHz | 2.5x |Closed| Open |Closed|Closed|1 & 2|
|-------+-------+----------+------+------+------+------+-----|
|166MHz | 66MHz | 2.5x | Open |Closed|Closed|Closed|1 & 2|
|-------+-------+----------+------+------+------+------+-----|
|180MHz | 60MHz | 3x |Closed| Open | Open |Closed|1 & 2|
|-------+-------+----------+------+------+------+------+-----|
|200MHz | 66MHz | 3x | Open |Closed| Open |Closed|1 & 2|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP15 |
|------------------------------+-----------------------------|
| | 3.3v (STD/VR) | Pins 2 & 3 closed |
|---+--------------------------+-----------------------------|
| » | 3.5v (VRE) | Pins 1 & 2 closed |
+------------------------------------------------------------+