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# IBM CORPORATION
PC SERVER 704 (TYPE 8650) MODEL 4BW
Processor Pentium Pro
Processor Speed 166MHz
Chip Set Unidentified
Video Chip Set Cirrus Logic
Maximum Onboard 2GB
Memory
Maximum Video 1MB
Memory
Cache 512KB (located on Pentium Pro CPU)
BIOS Unidentified
Dimensions 355mm x 304mm
I/O Options 32-bit PCI slots (5), floppy drive interface,
Ultra Wide SCSI interfaces (2), parallel
port, PS/2 mouse port, serial ports (2), VGA
port, riser slots (2), memory slot
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Power control | C1 | Serial port | CN3 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Front panel | C2 | Serial port | CN4 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Chassis fan power | C4 | PS/2 mouse port | CN5 |
|-------------------+----------+------------------+----------|
| Chassis fan power | C5 | Floppy drive | CN6 |
| | | interface | |
|-------------------+----------+------------------+----------|
| SCSI interface | C6 | Ultra Wide SCSI | CN7 |
| LED | | interface | |
|-------------------+----------+------------------+----------|
| Chassis fan power | C8 | Ultra Wide SCSI | CN8 |
| | | interface | |
|-------------------+----------+------------------+----------|
| Chassis fan power | C9 | 32-bit PCI slots | PC1 – |
| | | | PC5 |
|-------------------+----------+------------------+----------|
| SCSI interface | C10 | CPU slot | SL1 |
| LED | | | |
|-------------------+----------+------------------+----------|
| Parallel port | CN1 | CPU slot | SL2 |
|-------------------+----------+------------------+----------|
| VGA port | CN2 | Memory slot | SL3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+--------+--------------|
| » | Factory configured - do not | C7 | Unidentified |
| | alter | | |
|---+--------------------------------+--------+--------------|
| » | Factory configured - do not | J1 | Unidentified |
| | alter | | |
|---+--------------------------------+--------+--------------|
| » | Factory configured - do not | J2 | Unidentified |
| | alter | | |
|---+--------------------------------+--------+--------------|
| » | Flash BIOS normal operation | J6A1 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | Flash BIOS recovery mode | J6A1 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | BIOS boot block write | J6A1 | Pins 4 & 5 |
| | protected | | closed |
|---+--------------------------------+--------+--------------|
| | BIOS boot block write | J6A1 | Pins 5 & 6 |
| | programmable | | closed |
|---+--------------------------------+--------+--------------|
| » | Video sleep register select | J6A2 | Pins 4 & 5 |
| | 03C3H | | closed |
|---+--------------------------------+--------+--------------|
| | Video sleep register select | J6A2 | Pins 5 & 6 |
| | 46E8H | | closed |
|---+--------------------------------+--------+--------------|
| » | Factory configured - do not | J6A3 | Unidentified |
| | alter | | |
|---+--------------------------------+--------+--------------|
| » | Flash BIOS update disabled | J6A4 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | Flash BIOS update enabled | J6A4 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | CMOS memory normal operation | S6A1/1 | Off |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | S6A1/1 | On |
|---+--------------------------------+--------+--------------|
| » | Password normal operation | S6A1/2 | Off |
|---+--------------------------------+--------+--------------|
| | Password clear | S6A1/2 | On |
|---+--------------------------------+--------+--------------|
| » | Factory configured - do not | S6A1/3 | Off |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 64MB | (4) 4M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 128MB | (4) 8M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 128MB | (4) 4M x 36 | (4) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 192MB | (4) 4M x 36 | (4) 4M x | (4) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 256MB | (4) 16M x | None | None | None |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 256MB | (4) 4M x 36 | (4) 4M x | (4) 4M x | (4) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 256MB | (4) 8M x 36 | (4) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 384MB | (4) 8M x 36 | (4) 8M x | (4) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 512MB | (4) 32M x | None | None | None |
| | 36 | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM/SIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|--------+------------+------------+------------+------------|
| 512MB | (4) 8M x | (4) 8M x | (4) 8M x | (4) 8M x |
| | 36 | 36 | 36 | 36 |
|--------+------------+------------+------------+------------|
| 512MB | (4) 16M x | (4) 16M x | None | None |
| | 36 | 36 | | |
|--------+------------+------------+------------+------------|
| 768MB | (4) 16M x | (4) 16M x | (4) 16M x | None |
| | 36 | 36 | 36 | |
|--------+------------+------------+------------+------------|
| 1024MB | (4) 16M x | (4) 16M x | (4) 16M x | (4) 16M x |
| | 36 | 36 | 36 | 36 |
|--------+------------+------------+------------+------------|
| 1024MB | (4) 32M x | (4) 32M x | None | None |
| | 36 | 36 | | |
|--------+------------+------------+------------+------------|
| 1536MB | (4) 32M x | (4) 32M x | (4) 32M x | None |
| | 36 | 36 | 36 | |
|--------+------------+------------+------------+------------|
| 2048MB | (4) 32M x | (4) 32M x | (4) 32M x | (4) 32M x |
| | 36 | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: 512KB cache is located on the Pentium Pro CPU. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|------------------------------+-----------------------------|
| 512KB | 512KB |
|------------------------------+-----------------------------|
| 1MB | 1MB |
|------------------------------------------------------------|
| Note: The size of the video memory is unidentified. |
+------------------------------------------------------------+