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# DIAMOND FLOWER, INC.
586STC (REV. DC+)
Device Type Mainboard
Processor CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/CX
686MX/IBM 6X86MX/
AM K5/AM K6/Pentium
Processor Speed 75/90/100/120/133/150/166/200/233MHz
Chip Set SIS
Video Chip Set None
Maximum Onboard 256MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
Dimensions 280mm x 220mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse interface, serial
ports (2), IR connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Parallel port | J1 | Turbo LED | J13 |
|-------------------+----------+------------------+----------|
| Floppy drive | J4 | Green PC LED | J15 |
| interface | | | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | J5 | Green PC | J16 |
| | | connector | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | J6 | IDE interface | J17 |
| | | LED | |
|-------------------+----------+------------------+----------|
| PS/2 mouse | J7 | Reset switch | J19 |
| interface | | | |
|-------------------+----------+------------------+----------|
| Serial port 1 | J8 | Speaker | J20 |
|-------------------+----------+------------------+----------|
| IR connector | J9 | Power LED & | J21 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| Serial port 2 | J10 | 32-bit PCI slots | PC1 – |
| | | | PC4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------+-------+-----------------|
| » | CMOS memory normal operation | JP9 | Pins 1 & 2 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | CMOS memory clear | JP9 | Pins 2 & 3 |
| | | | 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 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 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 256KB | (2) 32K x 32 | Unidentified |
|------------------+--------------------+--------------------|
| 512KB | (2) 64K x 32 | Unidentified |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP1 | JP6 |JP10|JP11|JP12|JP13|
| speed |speed | | | | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|133MHz |55MHz | 2x | 1 & 2 |1 & 2|1 & |2 & |2 & |1 & |
| | | | | | 2 | 3 | 3 | 2 |
|-------+------+----------+--------+-----+----+----+----+----|
|150MHz |60MHz | 2x |3 & 4, 5|1 & 2|1 & |1 & |2 & |2 & |
| | | | & 6 | | 2 | 2 | 3 | 3 |
|-------+------+----------+--------+-----+----+----+----+----|
|166MHz |66MHz | 2x | 5 & 6 |1 & 2|1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|-------+------+----------+--------+-----+----+----+----+----|
|200MHz |75MHz | 2x | 3 & 4 |1 & 2|2 & |1 & |2 & |1 & |
| | | | | | 3 | 2 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP1 | JP6 |JP10|JP11|JP12|JP13|
| speed |speed | | | | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|133MHz |55MHz | 2x | 1 & 2 |1 & 2|1 & |2 & |2 & |1 & |
| | | | | | 2 | 3 | 3 | 2 |
|-------+------+----------+--------+-----+----+----+----+----|
|150MHz |60MHz | 2x |3 & 4, 5|1 & 2|1 & |1 & |2 & |2 & |
| | | | & 6 | | 2 | 2 | 3 | 3 |
|-------+------+----------+--------+-----+----+----+----+----|
|166MHz |66MHz | 2x | 5 & 6 |1 & 2|1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|-------+------+----------+--------+-----+----+----+----+----|
|200MHz |75MHz | 2x | 3 & 4 |1 & 2|2 & |1 & |2 & |1 & |
| | | | | | 3 | 2 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP1 | JP6 |JP10|JP11|JP12|JP13|
| speed |speed | | | | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|133MHz |55MHz | 2x | 1 & 2 |1 & 2|1 & |2 & |2 & |1 & |
| | | | | | 2 | 3 | 3 | 2 |
|-------+------+----------+--------+-----+----+----+----+----|
|150MHz |60MHz | 2x |3 & 4, 5|1 & 2|1 & |1 & |2 & |2 & |
| | | | & 6 | | 2 | 2 | 3 | 3 |
|-------+------+----------+--------+-----+----+----+----+----|
|166MHz |66MHz | 2x | 5 & 6 |1 & 2|1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|-------+------+----------+--------+-----+----+----+----+----|
|200MHz |75MHz | 2x | 3 & 4 |1 & 2|2 & |1 & |2 & |1 & |
| | | | | | 3 | 2 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86L) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP1 | JP6 |JP10|JP11|JP12|JP13|
| speed |speed | | | | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|133MHz |55MHz | 2x | 1 & 2 |1 & 2|1 & |2 & |2 & |1 & |
| | | | | | 2 | 3 | 3 | 2 |
|-------+------+----------+--------+-----+----+----+----+----|
|150MHz |60MHz | 2x |3 & 4, 5|1 & 2|1 & |1 & |2 & |2 & |
| | | | & 6 | | 2 | 2 | 3 | 3 |
|-------+------+----------+--------+-----+----+----+----+----|
|166MHz |66MHz | 2x | 5 & 6 |1 & 2|1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|-------+------+----------+--------+-----+----+----+----+----|
|200MHz |75MHz | 2x | 3 & 4 |1 & 2|2 & |1 & |2 & |1 & |
| | | | | | 3 | 2 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP1 | JP6 |JP10|JP11|JP12|JP13|
| speed |speed | | | | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|166MHz |60MHz | 2.5x |3 & 4, 5| 1 & |1 & |1 & |2 & |2 & |
| | | | & 6 |2, 3 | 2 | 2 | 3 | 3 |
| | | | | & 4 | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|200MHz |66MHz | 2.5x | 5 & 6 | 1 & |1 & |2 & |1 & |2 & |
| | | | |2, 3 | 2 | 3 | 2 | 3 |
| | | | | & 4 | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|233MHz |66MHz | 2.5x | 5 & 6 | 1 & |1 & |2 & |1 & |2 & |
| | | | |2, 3 | 2 | 3 | 2 | 3 |
| | | | | & 4 | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|233MHz |75MHz | 3x | 3 & 4 |3 & 4|2 & |1 & |2 & |1 & |
| | | | | | 3 | 2 | 3 | 2 |
|-------+------+----------+--------+-----+----+----+----+----|
|266MHz |75MHz | 3x | 3 & 4 |3 & 4|2 & |1 & |2 & |1 & |
| | | | | | 3 | 2 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86MX) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP1 | JP6 |JP10|JP11|JP12|JP13|
| speed |speed | | | | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|166MHz |60MHz | 2.5x |3 & 4, 5| 1 & |1 & |1 & |2 & |2 & |
| | | | & 6 |2, 3 | 2 | 2 | 3 | 3 |
| | | | | & 4 | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|200MHz |66MHz | 2.5x | 5 & 6 | 1 & |1 & |2 & |1 & |2 & |
| | | | |2, 3 | 2 | 3 | 2 | 3 |
| | | | | & 4 | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|233MHz |66MHz | 2.5x | 5 & 6 | 1 & |1 & |2 & |1 & |2 & |
| | | | |2, 3 | 2 | 3 | 2 | 3 |
| | | | | & 4 | | | | |
|-------+------+----------+--------+-----+----+----+----+----|
|233MHz |75MHz | 3x | 3 & 4 |3 & 4|2 & |1 & |2 & |1 & |
| | | | | | 3 | 2 | 3 | 2 |
|-------+------+----------+--------+-----+----+----+----+----|
|266MHz |75MHz | 3x | 3 & 4 |3 & 4|2 & |1 & |2 & |1 & |
| | | | | | 3 | 2 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP1 | JP6 |JP10|JP11|JP12|JP13|
| speed |speed | | | | | | | |
|-------+------+----------+-------+------+----+----+----+----|
| 75MHz |50MHz | 1.5x |3 & 4, | Open |1 & |2 & |2 & |2 & |
| | | | 7 & 8 | | 2 | 3 | 3 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
| 90MHz |60MHz | 1.5x |3 & 4, | Open |1 & |1 & |2 & |2 & |
| | | | 5 & 6 | | 2 | 2 | 3 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
|100MHz |66MHz | 1.5x | 5 & 6 | Open |1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
|120MHz |60MHz | 1.5x |3 & 4, | Open |1 & |1 & |2 & |2 & |
| | | | 5 & 6 | | 2 | 2 | 3 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
|133MHz |66MHz | 1.5x | 5 & 6 | Open |1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
|166MHz |66MHz | 2.5x | 5 & 6 |1 & 2,|1 & |2 & |1 & |2 & |
| | | | |3 & 4 | 2 | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP1 | JP6 |JP10|JP11|JP12|JP13|
| speed |speed | | | | | | | |
|-------+------+----------+-----+--------+----+----+----+----|
|166MHz |66MHz | 2.5x |5 & 6|1 & 2, 3|1 & |2 & |1 & |2 & |
| | | | | & 4 | 2 | 3 | 2 | 3 |
|-------+------+----------+-----+--------+----+----+----+----|
|200MHz |66MHz | 3x |5 & 6| 3 & 4 |1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|-------+------+----------+-----+--------+----+----+----+----|
|233MHz |66MHz | 3.5x |5 & 6| Open |1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP1 | JP6 |JP10|JP11|JP12|JP13|
| speed |speed | | | | | | | |
|-------+------+----------+-------+------+----+----+----+----|
| 75MHz |50MHz | 1.5x |3 & 4, | Open |1 & |2 & |2 & |2 & |
| | | | 7 & 8 | | 2 | 3 | 3 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
| 90MHz |60MHz | 1.5x |3 & 4, | Open |1 & |1 & |2 & |2 & |
| | | | 5 & 6 | | 2 | 2 | 3 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
|100MHz |66MHz | 1.5x | 5 & 6 | Open |1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
|120MHz |60MHz | 2x |3 & 4, |1 & 2 |1 & |1 & |2 & |2 & |
| | | | 5 & 6 | | 2 | 2 | 3 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
|133MHz |66MHz | 2x | 5 & 6 |1 & 2 |1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
|150MHz |60MHz | 2.5x |3 & 4, |1 & 2,|1 & |1 & |2 & |2 & |
| | | | 5 & 6 |3 & 4 | 2 | 2 | 3 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
|166MHz |66MHz | 2.5x | 5 & 6 |1 & 2,|1 & |2 & |1 & |2 & |
| | | | |3 & 4 | 2 | 3 | 2 | 3 |
|-------+------+----------+-------+------+----+----+----+----|
|200MHz |66MHz | 3x | 5 & 6 |3 & 4 |1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP1 | JP6 |JP10|JP11|JP12|JP13|
| speed |speed | | | | | | | |
|-------+------+----------+-----+--------+----+----+----+----|
|166MHz |66MHz | 2.5x |5 & 6|1 & 2, 3|1 & |2 & |1 & |2 & |
| | | | | & 4 | 2 | 3 | 2 | 3 |
|-------+------+----------+-----+--------+----+----+----+----|
|200MHz |66MHz | 3x |5 & 6| 3 & 4 |1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|-------+------+----------+-----+--------+----+----+----+----|
|233MHz |66MHz | 3.5x |5 & 6| Open |1 & |2 & |1 & |2 & |
| | | | | | 2 | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP5 |
|-----------------------------+------------------------------|
| AMD | Open |
|-----------------------------+------------------------------|
| Cyrix | Closed |
|-----------------------------+------------------------------|
| IBM | Closed |
|-----------------------------+------------------------------|
| Intel | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP3 | JP14 | JP15 |
|---------+--------------+--------------+--------------------|
| 3.5v | Open | 1 & 2, 3 & 4 | Open |
|---------+--------------+--------------+--------------------|
| 3.3v | Open | 1 & 2, 3 & 4 | 3 & 4 |
|---------+--------------+--------------+--------------------|
| 3.2v | 1 & 2, 3 & 4 | Open | 1 & 2, 3 & 4 |
|---------+--------------+--------------+--------------------|
| 3.1v | 1 & 2, 3 & 4 | Open | 5 & 6 |
|---------+--------------+--------------+--------------------|
| 3.0v | 1 & 2, 3 & 4 | Open | 1 & 2, 5 & 6 |
|---------+--------------+--------------+--------------------|
| 2.9v | 1 & 2, 3 & 4 | Open | 3 & 4, 5 & 6 |
|---------+--------------+--------------+--------------------|
| 2.8v | 1 & 2, 3 & 4 | Open | 1 & 2, 3 & 4, 5 & |
| | | | 6 |
|---------+--------------+--------------+--------------------|
| 2.7v | 1 & 2, 3 & 4 | Open | 7 & 8 |
|---------+--------------+--------------+--------------------|
| 2.6v | 1 & 2, 3 & 4 | Open | 1 & 2, 7 & 8 |
|---------+--------------+--------------+--------------------|
| 2.5v | 1 & 2, 3 & 4 | Open | 3 & 4, 7 & 8 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+