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# IBM CORPORATION
PC 730, PC 750
Processor Pentium
Processor Speed 60/90MHz
Chip Set Unidentified
Video Chip Set Unidentified
Maximum Onboard 192MB
Memory
Maximum Video Unidentified
Memory
Cache 256/1024KB
BIOS Unidentified
Dimensions 330mm x 218mm
I/O Options Floppy drive interface, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), VGA port, riser slot, CD-ROM audio
interface, audio line in connector, audio
line out connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Audio line out | CN1 | Floppy drive | CN8 |
| connector | | interface | |
|------------------+----------+-------------------+----------|
| Audio line in | CN2 | IDE interface | CN9 |
| connector | | | |
|------------------+----------+-------------------+----------|
| PS/2 mouse port | CN3 | IDE interface | CN10 |
|------------------+----------+-------------------+----------|
| Serial port | CN4 | CD-ROM audio | JP1 |
| | | interface | |
|------------------+----------+-------------------+----------|
| Serial port | CN5 | On/off switch | J37 |
| | | connector | |
|------------------+----------+-------------------+----------|
| Parallel port | CN6 | On/off switch | J38 |
| | | power supply | |
| | | connector | |
|------------------+----------+-------------------+----------|
| VGA port | CN7 | Riser slot | SL1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | 60/66 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| | Jumper information unavailable | J1 | Unidentified |
|---+---------------------------------+-------+--------------|
| | Jumper information unavailable | J2 | Unidentified |
|---+---------------------------------+-------+--------------|
| | PS/2 mouse enabled | J28 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | PS/2 mouse disabled | J28 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Modem answers on ring | MRD | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Modem does not answer on ring | MRD | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Password normal operation | PWD | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Password clear | PWD | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Floppy drive write protect | WP | Pins 1 & 2 |
| | disabled | | closed |
|---+---------------------------------+-------+--------------|
| | Floppy drive write protect | WP | Pins 2 & 3 |
| | enabled | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (2) 1M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 2M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 40MB | (2) 2M x 36 | (2) 2M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 48MB | (2) 2M x 36 | (2) 2M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | (2) 8M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 72MB | (2) 4M x 36 | (2) 4M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 80MB | (2) 4M x 36 | (2) 4M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 96MB | (2) 4M x 36 | (2) 4M x 36 | (2) 4M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 136MB | (2) 8M x 36 | (2) 8M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 144MB | (2) 8M x 36 | (2) 8M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 160MB | (2) 8M x 36 | (2) 8M x 36 | (2) 4M x 36 |
|------------+---------------+---------------+---------------|
| 192MB | (2) 8M x 36 | (2) 8M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 256KB | (8) 32K x 8 | Unidentified |
|------------------+--------------------+--------------------|
| 1MB | (8) 64K x 8 | Unidentified |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J3 | J4 | J5 | J6 |
|-------+-------------+------------+------------+------------|
| 256KB | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed | closed |
|-------+-------------+------------+------------+------------|
| 1MB | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------+-------------------------------------|
| 1MB | (2) 256K x 16 |
|------------------------------------------------------------|
| Note: The maximum memory size is unidentified. This |
| configuration is for an upgrade. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU BUS - CORE SELECTION |
|------------------------------------------------------------|
| Bus - Core | J101 | J101 |
|------------------+---------------------------+-------------|
| 1/2 | Pins 2 & 3 closed | Closed |
|------------------+---------------------------+-------------|
| 2/3 | Pins 1 & 2 closed | Open |
|------------------------------------------------------------|
| Note: Depending on board version, J101 will be either a |
| 2-pin or 3-pin jumper. |
+------------------------------------------------------------+