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# SUPER MICRO
P6SBA
Device Type Mainboard
Processor Pentium II
Processor Speed 233/266/300/333/350/400MHz
Chip Set Intel 440BX
Maximum Onboard 768MB (EDO & SDRAM supported)
Memory
Cache 256/512KB (located on the Pentium II CPU)
BIOS AMI
Dimensions 305mm x 244mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
IDE interfaces (2), parallel port, PS/2 mouse
port, serial ports (2), IR connector, USB
connectors (2), ATX power connector, AGP slot
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| AGP slot | AGP | Reset switch | JF2A |
|-------------------+----------+------------------+----------|
| ATX power | ATX | Power switch | JF2B |
| connector | | | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | J15 | IR connector | JF2C |
|-------------------+----------+------------------+----------|
| IDE interface 2 | J16 | Speaker | JF2D |
|-------------------+----------+------------------+----------|
| USB connector 1 | J17 | Power LED & | JF2E |
| | | keylock | |
|-------------------+----------+------------------+----------|
| USB connector 2 | J18 | IDE interface | JF2F |
| | | LED | |
|-------------------+----------+------------------+----------|
| Parallel port | J19 | Intrusion | JL1 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Serial port 1 | J20 | Overheat LED | JOH |
|-------------------+----------+------------------+----------|
| Serial port 2 | J21 | CPU fan power | JT1 |
|-------------------+----------+------------------+----------|
| Floppy drive | J22 | 32-bit PCI slots | PC1 - |
| interface | | | PC4 |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | J34 | Soft off power | SW2 |
| | | supply | |
|-------------------+----------+------------------+----------|
| External battery | JBT2 | Wake on LAN | WOL |
| | | connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Factory configured - do not alter | JTM | Reserved |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | JL2 | Reserved |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | JT2 | Reserved |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | JT3 | Reserved |
|---+-----------------------------------+-------+------------|
| » | Pentium II CTL PD state | JP20 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | BIOS CTL PD state | JP20 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | JBT1 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | JBT1 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|---------+------------+-----------+------------+------------|
| 8MB | 1MB x 64 | None | None | None |
|---------+------------+-----------+------------+------------|
| 16MB | 1MB x 64 | 1MB x 64 | None | None |
|---------+------------+-----------+------------+------------|
| 16MB | 2MB x 64 | None | None | None |
|---------+------------+-----------+------------+------------|
| 24MB | 1MB x 64 | 1MB x 64 | 1MB x 64 | |
|---------+------------+-----------+------------+------------|
| 32MB | 1MB x 64 | 1MB x 64 | 1MB x 64 | 1MB x 64 |
|---------+------------+-----------+------------+------------|
| 32MB | 2MB x 64 | 2MB x 64 | None | None |
|---------+------------+-----------+------------+------------|
| 32MB | 4MB x 64 | None | None | None |
|---------+------------+-----------+------------+------------|
| 40MB | 2MB x 64 | 2MB x 64 | 1MB x 64 | None |
|---------+------------+-----------+------------+------------|
| 48MB | 2MB x 64 | 2MB x 64 | 2MB x 64 | None |
|---------+------------+-----------+------------+------------|
| 64MB | 2MB x 64 | 2MB x 64 | 2MB x 64 | 2MB x 64 |
|---------+------------+-----------+------------+------------|
| 64MB | 4MB x 64 | 4MB x 64 | None | None |
|---------+------------+-----------+------------+------------|
| 64MB | 8MB x 64 | None | None | None |
|---------+------------+-----------+------------+------------|
| 88MB | 4MB x 64 | 4MB x 64 | 2MB x 64 | 1MB x 64 |
|---------+------------+-----------+------------+------------|
| 96MB | 4MB x 64 | 4MB x 64 | 4MB x 64 | |
|---------+------------+-----------+------------+------------|
| 112MB | 4MB x 64 | 4MB x 64 | 4MB x 64 | 2MB x 64 |
|---------+------------+-----------+------------+------------|
| 128MB | 4MB x 64 | 4MB x 64 | 4MB x 64 | 4MB x 64 |
|---------+------------+-----------+------------+------------|
| 128MB | 8MB x 64 | 8MB x 64 | None | None |
|---------+------------+-----------+------------+------------|
| 128MB | 16MB x 64 | None | None | None |
|---------+------------+-----------+------------+------------|
| 176MB | 8MB x 64 | 8MB x 64 | 4MB x 64 | 2MB x 64 |
|---------+------------+-----------+------------+------------|
| 192MB | 8MB x 64 | 8MB x 64 | 8MB x 64 | |
|---------+------------+-----------+------------+------------|
| 224MB | 8MB x 64 | 8MB x 64 | 8MB x 64 | 4MB x 64 |
|---------+------------+-----------+------------+------------|
| 256MB | 8MB x 64 | 8MB x 64 | 8MB x 64 | 8MB x 64 |
|---------+------------+-----------+------------+------------|
| 256MB | 16MB x 64 | 16MB x 64 | None | None |
|---------+------------+-----------+------------+------------|
| 256MB | 32MB x 64 | None | None | None |
|---------+------------+-----------+------------+------------|
| 352 MB | 16MB x 64 | 16MB x 64 | 8MB x 64 | 4MB x 64 |
|---------+------------+-----------+------------+------------|
| 384MB | 16MB x 64 | 16MB x 64 | 16MB x 64 | |
|---------+------------+-----------+------------+------------|
| 448 MB | 16MB x 64 | 16MB x 64 | 16MB x 64 | 8MB x 64 |
|---------+------------+-----------+------------+------------|
| 512MB | 16MB x 64 | 16MB x 64 | 16MB x 64 | 16MB x 64 |
|---------+------------+-----------+------------+------------|
| 512MB | 32MB x 64 | 32MB x 64 | None | None |
|---------+------------+-----------+------------+------------|
| 512MB | 64MB x 64 | None | None | None |
|---------+------------+-----------+------------+------------|
| 704 MB | 32MB x 64 | 32MB x 64 | 16MB x 64 | 8MB x 64 |
|---------+------------+-----------+------------+------------|
| 768MB | 32MB x 64 | 32MB x 64 | 32MB x 64 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: The 256/512KB cache memory is located on the Pentium |
| II CPU. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (PENTIUM II) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JB1 | JB2 | JB3 |
| speed | speed | | | | |
|---------+----------+------------+--------+--------+--------|
| 233MHz | 66MHz | 3.5x | Open | Open | Closed |
|---------+----------+------------+--------+--------+--------|
| 266MHz | 66MHz | 4x | Closed | Closed | Open |
|---------+----------+------------+--------+--------+--------|
| 300MHz | 66MHz | 4.5x | Open | Closed | Open |
|---------+----------+------------+--------+--------+--------|
| 333MHz | 66MHz | 5x | Closed | Open | Open |
|---------+----------+------------+--------+--------+--------|
| 350MHz | 100MHz | 3.5x | Open | Open | Closed |
|---------+----------+------------+--------+--------+--------|
| 400MHz | 100MHz | 4x | Closed | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (PENTIUM II CONT’) |
|------------------------------------------------------------|
| CPU speed | Clock | Multiplier | JB4 | JP11 |
| | speed | | | |
|-----------+---------+------------+--------+----------------|
| 233MHz | 66MHz | 3.5x | Closed | Pins 2 & 3 |
| | | | | closed |
|-----------+---------+------------+--------+----------------|
| 266MHz | 66MHz | 4x | Closed | Pins 2 & 3 |
| | | | | closed |
|-----------+---------+------------+--------+----------------|
| 300MHz | 66MHz | 4.5x | Closed | Pins 2 & 3 |
| | | | | closed |
|-----------+---------+------------+--------+----------------|
| 333MHz | 66MHz | 5x | Closed | Pins 2 & 3 |
| | | | | closed |
|-----------+---------+------------+--------+----------------|
| 350MHz | 100MHz | 3.5x | Closed | Open |
|-----------+---------+------------+--------+----------------|
| 400MHz | 100MHz | 4x | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|------+--------------+--------+-----------------------------|
| LED1 | Unidentified | On | Power on |
|------+--------------+--------+-----------------------------|
| LED1 | Unidentified | Off | Power off |
+------------------------------------------------------------+