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# IBM CORPORATION
PC 730/750 SERIES (TYPE 6877, 6887)
Processor Pentium
Processor Speed 75/90/100/120/133/150/166MHz
Chip Set Unidentified
Video Chip Set None
Maximum Onboard 128MB
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Unidentified
Dimensions 330mm x 218mm
I/O Options Floppy drive interface, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), VESA pass through connector, VGA port,
riser slot, cache slot, IR connector, VRM
connector, DSP audio connector, external ring
wake up connector, modem ring connector, LAN
wake up connector, on/off switch connector,
tamper connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| VGA port | CN1 | Speaker | J3 |
|-------------------+----------+------------------+----------|
| Parallel port | CN2 | IDE interface | J4 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN3 | Power LED | J5 |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN4 | Modem ring | J9 |
| | | connector | |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | CN5 | External ring | J13 |
| | | wake up | |
| | | connector | |
|-------------------+----------+------------------+----------|
| IR connector | CN6 | LAN wake up | J14 |
| | | connector | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN7 | On/off switch | J18 |
| | | connector | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN8 | Tamper connector | J19 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN9 | Riser slot | SL1 |
| interface | | | |
|-------------------+----------+------------------+----------|
| VESA pass through | CN10 | Cache slot | SL2 |
| connector | | | |
|-------------------+----------+------------------+----------|
| DSP audio | J2 | VRM connector | VRM |
| connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | J1 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Password enabled | J15 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Password disabled | J15 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | System administrator password | SW1/5 | On |
| | enabled | | |
|---+---------------------------------+-------+--------------|
| | System administrator password | SW1/5 | Off |
| | disabled | | |
|---+---------------------------------+-------+--------------|
| » | Floppy drive write protect | SW1/6 | Off |
| | disabled | | |
|---+---------------------------------+-------+--------------|
| | Floppy drive write protect | SW1/6 | On |
| | enabled | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 16MB | None | None | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 24MB | None | (2) 1M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | None | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | None | None | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 40MB | (2) 1M x 36 | (2) 2M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 40MB | None | (2) 1M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 1M x 36 | (2) 1M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (2) 2M x 36 | (2) 2M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 72MB | (2) 1M x 36 | (2) 4M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (2) 2M x 36 | (2) 4M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 4M x 36 | (2) 4M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 4M x 36 | (2) 8M x 36 | (1) 4M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | SL1 |
|----------------------------+-------------------------------|
| 256KB | 256KB module installed |
|----------------------------+-------------------------------|
| 512KB | 512KB module installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
|---------+-----------+----------+------+------+------+------|
| 75MHz | 50MHz | 1.5x | Off | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 90MHz | 60MHz | 1.5x | Off | Off | On | Off |
|---------+-----------+----------+------+------+------+------|
| 100MHz | 66MHz | 1.5x | Off | Off | Off | On |
|---------+-----------+----------+------+------+------+------|
| 120MHz | 60MHz | 2x | On | Off | On | Off |
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 2x | On | Off | Off | On |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x | On | On | On | Off |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | On | On | Off | On |
+------------------------------------------------------------+