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# SHUTTLE COMPUTER INTERNATIONAL, INC.
HOT-641/P
Device Type Mainboard
Processor Pentium II/Celeron
Processor Speed 233/266/300/333/350/400/450/500MHz
Chip Set Intel 440BX
Maximum Onboard 1GB (SDRAM supported)
Memory
Cache 0/128/256/512KB (located on the CPU)
BIOS Award
Dimensions 305mm x 220mm
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, wake on LAN connector
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| AGP slot | AGP | Power LED | J25 |
|------------------+----------+-------------------+----------|
| ATX power | ATX | CPU fan power | J26 |
| connector | | | |
|------------------+----------+-------------------+----------|
| Parallel port | CN1 | Speaker | J27 |
|------------------+----------+-------------------+----------|
| Serial port 1 | CN2 | IDE interface LED | J28 |
|------------------+----------+-------------------+----------|
| Serial port 2 | CN3 | Reset switch | J29 |
|------------------+----------+-------------------+----------|
| USB connector 1 | CN4 | Wake on LAN | J39 |
| | | connector | |
|------------------+----------+-------------------+----------|
| USB connector 2 | CN5 | Floppy drive | J41 |
| | | interface | |
|------------------+----------+-------------------+----------|
| PS/2 mouse port | CN6 | Soft off power | JP15 |
| | | supply | |
|------------------+----------+-------------------+----------|
| IDE interface 1 | J14 | IR connector | JP22 |
|------------------+----------+-------------------+----------|
| IDE interface 2 | J15 | 32-bit PCI slots | PC1 - |
| | | | PC4 |
|------------------+----------+-------------------+----------|
| AGP fan power | FAN3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Factory configured - do not alter | J40 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | JP6 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | JP6 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | JP8 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Flash BIOS voltage select 12v | JP9 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Flash BIOS voltage select 5v | JP9 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | JP10 | Pins 1 & 2 |
| | | | 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 | (1) 4M x | (1) 4M x | None |
| | 64 | 64 | 64 | |
|--------+------------+------------+------------+------------|
| 128MB | (1) 16M x | None | None | None |
| | 64 | | | |
|--------+------------+------------+------------+------------|
| 128MB | (1) 8M x | (1) 8M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 128MB | (1) 4M x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 64 | 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 | | |
|--------+------------+------------+------------+------------|
| 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 | (1) 8M x | (1) 8M x | None |
| | 64 | 64 | 64 | |
|--------+------------+------------+------------+------------|
| 256MB | (1) 32M x | None | None | None |
| | 64 | | | |
|--------+------------+------------+------------+------------|
| 256MB | (1) 16M x | (1) 16M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 256MB | (1) 8M x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 272MB | (1) 16M x | (1) 16M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 280MB | (1) 32M x | (1) 1M 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 |
|--------+------------+------------+------------+------------|
| 384MB | (1) 16M x | (1) 16M x | (1) 16M x | None |
| | 64 | 64 | 64 | |
|--------+------------+------------+------------+------------|
| 448MB | (1) 32M x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 512MB | (1) 32M x | (1) 32M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 512MB | (1) 16M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 640MB | (1) 32M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 768MB | (1) 32M x | (1) 32M x | (1) 32M x | None |
| | 64 | 64 | 64 | |
|--------+------------+------------+------------+------------|
| 1024MB | (1) 32M x | (1) 32M x | (1) 32M x | (1) 32M x |
| | 64 | 64 | 64 | 64 |
|------------------------------------------------------------|
| Note: Board accepts SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: 256KB/512KB cache is located on the Pentium II |
| CPU. 128KB cache is located on the Celeron 300A & 333 |
| CPU. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| J201 | JP11 | JP12 | JP13 | JP14 |
| speed |speed | | | | | | |
|-------+------+----------+------+------+------+------+------|
|233MHz |66MHz | 3.5x |Closed|Closed| Open | Open |Closed|
|-------+------+----------+------+------+------+------+------|
|266MHz |66MHz | 4x |Closed| Open |Closed|Closed|Closed|
|-------+------+----------+------+------+------+------+------|
|300MHz |66MHz | 4.5x |Closed| Open | Open |Closed|Closed|
|-------+------+----------+------+------+------+------+------|
|333MHz |66MHz | 5x |Closed| Open |Closed| Open |Closed|
|-------+------+----------+------+------+------+------+------|
|350MHz |100MHz| 3.5x | Open |Closed| Open | Open |Closed|
|-------+------+----------+------+------+------+------+------|
|400MHz |100MHz| 4x | Open | Open |Closed|Closed|Closed|
|-------+------+----------+------+------+------+------+------|
|450MHz |100MHz| 4.5x | Open | Open | Open |Closed|Closed|
|-------+------+----------+------+------+------+------+------|
|500MHz |100MHz| 5x | Open | Open |Closed| Open |Closed|
+------------------------------------------------------------+