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# SHUTTLE COMPUTER INTERNATIONAL, INC.
HOT-637
Device Type Mainboard
Processor Pentium II
Processor Speed 233/266/300/333MHz
Chip Set Intel 440LX
Maximum Onboard 512MB (EDO & SDRAM supported)
Memory
Cache 256/512KB (located on Pentium II CPU)
BIOS Award
Dimensions 305mm x 244mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
IDE interfaces (2), parallel port, PS/2 mouse
port, serial ports (2), IR connector, USB
connectors (2), ATX power connector, AGP slot
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| AGP slot | AGP | Reset switch | J32 |
|-------------------+----------+------------------+----------|
| ATX power | ATX | USB connector 1 | J33 |
| connector | | | |
|-------------------+----------+------------------+----------|
| EISCA connector | C1 | USB connector 2 | J34 |
|-------------------+----------+------------------+----------|
| IDE interface 1 | J13 | AGP fan power | J43 |
|-------------------+----------+------------------+----------|
| IDE interface 2 | J14 | IR connector | JP4 |
|-------------------+----------+------------------+----------|
| Parallel port | J19 | Speaker | JP24 |
|-------------------+----------+------------------+----------|
| Serial port 1 | J20 | Chassis fan | JP28 |
| | | power | |
|-------------------+----------+------------------+----------|
| Serial port 2 | J21 | CPU fan power | JP29 |
|-------------------+----------+------------------+----------|
| Floppy drive | J22 | Soft off power | S1 |
| interface | | supply | |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | J24 | IDE interface | S3 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Power LED & | J27 | 32-bit PCI slots | PC1 - |
| keylock | | | PC4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| | Flash BIOS voltage select 12v | J17 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Flash BIOS voltage select 5v | J17 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | JP19 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | JP19 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Hard drive select any drive | JP32 | Pins 1 & 2 |
| | installed | | closed |
|---+-----------------------------------+-------+------------|
| | Hard drive select Seagate 5v only | JP32 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 64 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 64 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x | None |
| | | | 64 | |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 64 | None | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x | (1) 1M x |
| | | | 64 | 64 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x | None |
| | | | 64 | |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x | (1) 2M x |
| | | | 64 | 64 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 8M x 64 | None | None | None |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 72MB | (1) 8M x 64 | (1) 1M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 | None | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON'T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 4M x 64 | (1) 4M x | (1) 4M x | None |
| | | 64 | 64 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | None | None | None |
| | 64 | | | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 64 | (1) 8M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 4M x 64 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 136MB | (1) 16M x | (1) 1M x | None | None |
| | 64 | 64 | | |
|-------+-------------+------------+------------+------------|
| 144MB | (1) 16M x | (1) 2M x | None | None |
| | 64 | 64 | | |
|-------+-------------+------------+------------+------------|
| 152MB | (1) 16M x | (1) 1M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 160MB | (1) 16M x | (1) 4M x | None | None |
| | 64 | 64 | | |
|-------+-------------+------------+------------+------------|
| 176MB | (1) 16M x | (1) 2M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 192MB | (1) 16M x | (1) 8M x | None | None |
| | 64 | 64 | | |
|-------+-------------+------------+------------+------------|
| 192MB | (1) 8M x 64 | (1) 8M x | (1) 8M x | None |
| | | 64 | 64 | |
|-------+-------------+------------+------------+------------|
| 224MB | (1) 16M x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 256MB | (1) 16M x | (1) 16M x | None | None |
| | 64 | 64 | | |
|-------+-------------+------------+------------+------------|
| 256MB | (1) 8M x 64 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 272MB | (1) 16M x | (1) 16M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 288MB | (1) 16M x | (1) 16M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 320MB | (1) 16M x | (1) 16M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 320MB | (1) 16M x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 384MB | (1) 16M x | (1) 16M x | (1) 16M x | None |
| | 64 | 64 | 64 | |
|-------+-------------+------------+------------+------------|
| 512MB | (1) 16M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 64 | 64 | 64 | 64 |
|------------------------------------------------------------|
| Note: Board accepts EDO & SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: 256KB/512KB cache is located on the Pentium II CPU. |
+------------------------------------------------------------+
+---------------------------------------------------------------+
| CPU SPEED SELECTION |
|---------------------------------------------------------------|
| CPU |Clock|Multiplier|JP35/pins|JP35/pins|JP35/pins|JP35/pins|
|speed |speed| | | | | |
| | | | 1 & 2 | 3 & 4 | 5 & 6 | 7 & 8 |
|------+-----+----------+---------+---------+---------+---------|
|233MHz|66MHz| 3.5x | Open | Open | Open | Open |
|------+-----+----------+---------+---------+---------+---------|
|266MHz|66MHz| 4x | Open | Open | Open | Open |
|------+-----+----------+---------+---------+---------+---------|
|300MHz|66MHz| 4.5x | Open | Open | Open | Open |
|------+-----+----------+---------+---------+---------+---------|
|333MHz|66MHz| 5x | Open | Open | Open | Open |
+---------------------------------------------------------------+
+---------------------------------------------------------------+
| CPU SPEED SELECTION (CON'T) |
|---------------------------------------------------------------|
| CPU |Clock|Multiplier|JP37/pins|JP37/pins|JP37/pins|JP37/pins|
|speed |speed| | | | | |
| | | | 1 & 2 | 3 & 4 | 5 & 6 | 7 & 8 |
|------+-----+----------+---------+---------+---------+---------|
|233MHz|66MHz| 3.5x | Closed | Open | Closed | Open |
|------+-----+----------+---------+---------+---------+---------|
|266MHz|66MHz| 4x | Open | Closed | Closed | Closed |
|------+-----+----------+---------+---------+---------+---------|
|300MHz|66MHz| 4.5x | Open | Closed | Closed | Open |
|------+-----+----------+---------+---------+---------+---------|
|333MHz|66MHz| 5x | Open | Open | Closed | Closed |
+---------------------------------------------------------------+