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# I-BUS
MAKO
Processor Pentium
Processor Speed 75/90/100/120/133/150/166/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 512MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 512KB
BIOS Unidentified
Dimensions Unidentified
I/O Options Floppy drive interface, IDE interface,
parallel port, PS/2 mouse port, serial ports
(2), cache slot, USB connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| IDE interface LED | J2 | External battery | J10 |
|-------------------+----------+------------------+----------|
| Reset switch | J3 | Speaker | J11 |
|-------------------+----------+------------------+----------|
| IDE interface | J4 | Auxiliary | J12 |
| | | keyboard | |
| | | connector | |
|-------------------+----------+------------------+----------|
| Floppy drive | J5 | USB connector | J13 |
| interface | | | |
|-------------------+----------+------------------+----------|
| Parallel port | J6 | PS/2 mouse port | J18 |
|-------------------+----------+------------------+----------|
| Serial port 2 | J7 | Chassis fan | J26 |
| | | power | |
|-------------------+----------+------------------+----------|
| Serial port 1 | J8 | Cache slot | SL1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| | Battery type select internal | J10 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Battery type select external | J10 | Closed |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | J10 | Open |
|---+---------------------------------+-------+--------------|
| » | Watchdog timer disabled | J14 | Open |
|---+---------------------------------+-------+--------------|
| | Watchdog timer enabled | J14 | Closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J22 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| | Flash BIOS write disabled | J29 | Open |
|---+---------------------------------+-------+--------------|
| | Flash BIOS write enabled | J29 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|---------------+----------------------+---------------------|
| 8MB | (2) 1M x 36 | None |
|---------------+----------------------+---------------------|
| 16MB | (2) 2M x 36 | None |
|---------------+----------------------+---------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|---------------+----------------------+---------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|---------------+----------------------+---------------------|
| 32MB | (2) 4M x 36 | None |
|---------------+----------------------+---------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|---------------+----------------------+---------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|---------------+----------------------+---------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|---------------+----------------------+---------------------|
| 64MB | (2) 8M x 36 | None |
|---------------+----------------------+---------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|---------------+----------------------+---------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|---------------+----------------------+---------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|---------------+----------------------+---------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|---------------+----------------------+---------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|---------------+----------------------+---------------------|
| 128MB | (2) 16M x 36 | None |
|---------------+----------------------+---------------------|
| 136MB | (2) 16M x 36 | (2) 1M x 36 |
|---------------+----------------------+---------------------|
| 144MB | (2) 16M x 36 | (2) 2M x 36 |
|---------------+----------------------+---------------------|
| 160MB | (2) 16M x 36 | (2) 4M x 36 |
|---------------+----------------------+---------------------|
| 192MB | (2) 16M x 36 | (2) 8M x 36 |
|---------------+----------------------+---------------------|
| 256MB | (2) 16M x 36 | (2) 16M x 36 |
|---------------+----------------------+---------------------|
| 256MB | (2) 32M x 36 | None |
|---------------+----------------------+---------------------|
| 264MB | (2) 32M x 36 | (2) 1M x 36 |
|---------------+----------------------+---------------------|
| 272MB | (2) 32M x 36 | (2) 2M x 36 |
|---------------+----------------------+---------------------|
| 288MB | (2) 32M x 36 | (2) 4M x 36 |
|---------------+----------------------+---------------------|
| 320MB | (2) 32M x 36 | (2) 8M x 36 |
|---------------+----------------------+---------------------|
| 384MB | (2) 32M x 36 | (2) 16M x 36 |
|---------------+----------------------+---------------------|
| 512MB | (2) 32M x 36 | (2) 32M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Board also accepts x |
| 32 SIMMs. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | SL1 |
|----------------------------+-------------------------------|
| 512KB | 512KB module installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (P54C) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J16 | J17 | J19 | J30 |
| speed | speed | | | | | |
|--------+--------+------------+-------+------+------+-------|
| 75MHz | 50MHz | 1.5x | 1 & | Open | 1 & | 1 & 2 |
| | | | 3, 2 | | 3, 2 | |
| | | | & 4 | | & 4 | |
|--------+--------+------------+-------+------+------+-------|
| 90MHz | 60MHz | 1.5x | 2 & 4 | Open | 1 & | 1 & 2 |
| | | | | | 3, 2 | |
| | | | | | & 4 | |
|--------+--------+------------+-------+------+------+-------|
| 100MHz | 66MHz | 1.5x | 1 & 3 | Open | 1 & | 1 & 2 |
| | | | | | 3, 2 | |
| | | | | | & 4 | |
|--------+--------+------------+-------+------+------+-------|
| 120MHz | 60MHz | 2x | 2 & 4 | Open | 2 & | Open |
| | | | | | 4, 3 | |
| | | | | | & 5 | |
|--------+--------+------------+-------+------+------+-------|
| 133MHz | 66MHz | 2x | 1 & 3 | Open | 2 & | Open |
| | | | | | 4, 3 | |
| | | | | | & 5 | |
|--------+--------+------------+-------+------+------+-------|
| 150MHz | 60MHz | 2.5x | 2 & 4 | Open | 3 & | Open |
| | | | | | 5, 4 | |
| | | | | | & 6 | |
|--------+--------+------------+-------+------+------+-------|
| 166MHz | 66MHz | 2.5x | 1 & 3 | Open | 3 & | Open |
| | | | | | 5, 4 | |
| | | | | | & 6 | |
|--------+--------+------------+-------+------+------+-------|
| 200MHz | 66MHz | 3x | 1 & 3 | Open | 1 & | Open |
| | | | | | 3, 4 | |
| | | | | | & 6 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (P55C) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J16 | J17 | J19 | J30 |
| speed | speed | | | | | |
|--------+--------+------------+-------+------+-------+------|
| 166MHz | 66MHz | 2.5x | 1 & 3 | Open | 3 & | 1 & |
| | | | | | 5, 4 | 2 |
| | | | | | & 6 | |
|--------+--------+------------+-------+------+-------+------|
| 200MHz | 66MHz | 3x | 1 & 3 | Open | 1 & | 1 & |
| | | | | | 3, 4 | 2 |
| | | | | | & 6 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| WATCHDOG/ISA BUS INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J23 |
|---------------------------------+--------------------------|
| » | IRQ11 for ISA bus | Pins 3 & 4 closed |
|---+-----------------------------+--------------------------|
| | IRQ11 for watchdog timer | Pins 1 & 3 closed |
|---+-----------------------------+--------------------------|
| | IRQ11 for watchdog timer & | Pins 1 & 3, 2 & 4 closed |
| | ISA bus | |
+------------------------------------------------------------+