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# DIAMOND FLOWER, INC.
G586OPA (REV. 0+)
Device Type Mainboard
Processor Pentium
Processor Speed 75/90/100/120/133MHz
Chip Set OPTI
Video Chip Set None
Maximum Onboard 128MB
Memory
Maximum Video None
Memory
Cache 256/512/1024KB
BIOS Award
Dimensions 330mm x 220mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
IDE interfaces (2), parallel port, PS/2 mouse
interface, serial ports (2)
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Parallel port | JP3 | IDE interface | JP14 |
| | | LED | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | JP4 | Power LED & LED | JP15 |
|-------------------+----------+------------------+----------|
| Floppy drive | JP5 | Speaker | JP16 |
| interface | | | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | JP6 | Reset switch | JP17 |
|-------------------+----------+------------------+----------|
| Serial port 1 | JP7 | Green LED | JP18 |
|-------------------+----------+------------------+----------|
| Serial port 2 | JP8 | CPU fan power | JP22 |
|-------------------+----------+------------------+----------|
| PS/2 mouse | JP9 | 32-bit PCI slots | PC1 – |
| interface | | | PC4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Factory configured - do not alter | J2 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J3 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J4 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J8 | Closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J11 | Closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J12 | Closed |
|---+-----------------------------------+-------+------------|
| » | Flash BIOS voltage select 5v | J16 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Flash BIOS voltage select 12v | J16 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | PS/2 mouse IRQ12 enabled | J17 | Closed |
|---+-----------------------------------+-------+------------|
| | PS/2 mouse IRQ12 disabled | J17 | Open |
|---+-----------------------------------+-------+------------|
| » | Monitor type select color | J18 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Monitor type select monochrome | J18 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J19 | Open |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J20 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J21 | Closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J22 | Closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J23 | Closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J24 | Closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J25 | Closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J50 | Open |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J51 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J56 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 2MB | (2) 256K x 36 | None |
|------------------+--------------------+--------------------|
| 4MB | (2) 512K x 36 | None |
|------------------+--------------------+--------------------|
| 4MB | (2) 256K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 6MB | (2) 512K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 10MB | (2) 1M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 12MB | (2) 512K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 18MB | (2) 2M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 20MB | (2) 512K x 36 | (2) 2M 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 |
|------------------+--------------------+--------------------|
| 34MB | (2) 4M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 36MB | (2) 512K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 66MB | (2) 8M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 68MB | (2) 512K x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 256KB | (8) 32K x 8 | (1) 32K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (8) 64K x 8 | (1) 32K x 8 |
|------------------+--------------------+--------------------|
| 1MB | (8) 128K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J6 | J7 |
|-------------------+--------------------+-------------------|
| 256KB | Open | Open |
|-------------------+--------------------+-------------------|
| 512KB | Open | Closed |
|-------------------+--------------------+-------------------|
| 1MB | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP1 | JP2 |
|--------------------+-------------------+-------------------|
| | 3.3v | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+----------------+-------------------+-------------------|
| » | Mixed voltage | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J9 | J10 | J13 |
| speed | speed | | | | |
|---------+----------+------------+--------+--------+--------|
| 75MHz | 50MHz | 1.5x | Open | Open | Open |
|---------+----------+------------+--------+--------+--------|
| 90MHz | 60MHz | 1.5x | Closed | Closed | Open |
|---------+----------+------------+--------+--------+--------|
| 100MHz | 66MHz | 1.5x | Open | Closed | Open |
|---------+----------+------------+--------+--------+--------|
| 100MHz | 50MHz | 2x | Open | Open | Closed |
|---------+----------+------------+--------+--------+--------|
| 120MHz | 60MHz | 2x | Closed | Closed | Closed |
|---------+----------+------------+--------+--------+--------|
| 133MHz | 66MHz | 2x | Open | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JP11 | JP13 |
|------------------+--------------------+--------------------|
| » | 1 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|----+-------------+--------------------+--------------------|
| | 3 | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+