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# AST RESEARCH, INC.
BRAVO MS P/75 (221478-F01)
Processor Pentium
Processor Speed 75/90/100/120/133/150/166MHz
Chip Set Unidentified
Maximum Onboard 128MB
Memory
Cache 256KB
BIOS AMI
Dimensions 254mm x 218mm
I/O Options Floppy drive interface, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), 8514 video pass through connector, VGA
port, VRM connector, cache slot, riser slot,
wavetable connector MIDI/sound port connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-------------------------+-------+------------------+-------|
| PS/2 mouse port | CN2 | Front panel | J4A1 |
| | | connector | |
|-------------------------+-------+------------------+-------|
| Serial port | CN3 | Floppy drive | J8G1 |
| | | interface | |
|-------------------------+-------+------------------+-------|
| Serial port | CN4 | IDE interface 2 | J8E1 |
|-------------------------+-------+------------------+-------|
| Parallel port | CN5 | IDE interface 1 | J9E1 |
|-------------------------+-------+------------------+-------|
| VGA port | CN6 | Wavetable | J9H1 |
| | | connector | |
|-------------------------+-------+------------------+-------|
| VRM connector | J1B1 | MIDI/sound port | J9H2 |
| | | connector | |
|-------------------------+-------+------------------+-------|
| 8514 video pass through | J1J1 | Cache slot | SL1 |
| connector | | | |
|-------------------------+-------+------------------+-------|
| Front panel connector | J2A2 | Riser slot | SL2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|---------------------------------------+-------+------------|
| » | PCI clock speed select 1/3 | J4K1 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | PCI clock speed select 1/4 | J4K1 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Setup access enabled | J4K1 | Pins 4 & 5 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Setup access disabled | J4K1 | Pins 5 & 6 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | J5K2 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | J5K2 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Password enabled | J5K2 | Pins 4 & 5 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Password disabled | J5K2 | Pins 5 & 6 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J9K1 | N/A |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 32 | None |
|------------------+--------------------+--------------------|
| 10MB | (2) 1M x 32 | (2) 256K x 32 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 32 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 32 | (2) 1M x 32 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 32 | (2) 1M x 32 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 32 | None |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 32 | (2) 2M x 32 |
|------------------+--------------------+--------------------|
| 34MB | (2) 4M x 32 | (2) 256K x 32 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 32 | (2) 1M x 32 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 32 | (2) 2M x 32 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 32 | None |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 32 | (2) 4M x 32 |
|------------------+--------------------+--------------------|
| 66MB | (2) 8M x 32 | (2) 256K x 32 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 32 | (2) 1M x 32 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 32 | (2) 2M x 32 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 32 | (2) 4M x 32 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 32 | (2) 8M x 32 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE SIZE |
|------------------------------------------------------------|
| Size | SL1 |
|----------------------------+-------------------------------|
| 0KB | Not installed |
|----------------------------+-------------------------------|
| 256KB | Installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED |
|------------------------------------------------------------|
| Setting | J5J1 | J5J2 |
|---------+-------------------------+------------------------|
| 75MHz | Pins 1 & 2, 4 & 5 | Pins 1 & 2, 4 & 5 |
| | closed | closed |
|---------+-------------------------+------------------------|
| 90MHz | Pins 1 & 2, 5 & 6 | Pins 1 & 2, 4 & 5 |
| | closed | closed |
|---------+-------------------------+------------------------|
| 100MHz | Pins 2 & 3, 4 & 5 | Pins 1 & 2, 4 & 5 |
| | closed | closed |
|---------+-------------------------+------------------------|
| 120MHz | Pins 1 & 2, 5 & 6 | Pins 2 & 3, 4 & 5 |
| | closed | closed |
|---------+-------------------------+------------------------|
| 133MHz | Pins 2 & 3, 4 & 5 | Pins 2 & 3, 4 & 5 |
| | closed | closed |
|---------+-------------------------+------------------------|
| 150MHz | Pins 1 & 2, 5 & 6 | Pins 2 & 3, 5 & 6 |
| | closed | closed |
|---------+-------------------------+------------------------|
| 166MHz | Pins 2 & 3, 4 & 5 | Pins 2 & 3, 5 & 6 |
| | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE |
|------------------------------------------------------------|
| Setting | J6A2 |
|----------------------------+-------------------------------|
| 3.3v | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 3.6v | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|--------------+----------------------+----------------------|
| 1MB | (4) 256K x 16 | None |
|--------------+----------------------+----------------------|
| 2MB | (4) 256K x 16 | (4) 256K x 16 |
|------------------------------------------------------------|
| Note: Bank 0 is factory installed and is not configurable. |
+------------------------------------------------------------+