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# ASUS COMPUTER INTERNATIONAL
SP98-N (REV. 1.02)
Device Type Mainboard
Processor CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/CX
686MX/IBM 6X86MX/
AM K5/AM K6/Pentium/Pentium MMX
Processor Speed 75/90/100/120/133/150/166/200/233MHz
Chip Set SIS
Video Chip Set None
Maximum Onboard 256MB (EDO & SDRAM supported)
Memory
Maximum Video None
Memory
Cache 512KB
BIOS Unidentified
Dimensions 254mm x 218mm
I/O Options Ethernet 10BaseT connector, floppy drive
interface, game/MIDI port, parallel port,
PS/2 mouse port, serial ports (2), VGA
feature connector, VGA port
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| CD-ROM connector | C1 | Serial port 2 | CN3 |
|-------------------+----------+------------------+----------|
| Audio connector | C2 | PS/2 mouse port | CN4 |
|-------------------+----------+------------------+----------|
| Speaker | C3 | Ethernet 10BaseT | CN5 |
| | | connector | |
|-------------------+----------+------------------+----------|
| VGA feature | C4 | LAN LEDs | CN6 |
| connector | | | |
|-------------------+----------+------------------+----------|
| CPU fan power | C5 | VGA port | CN7 |
|-------------------+----------+------------------+----------|
| Parallel port | CN1 | Game/MIDI port | CN8 |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| | PCI frequency select synchronous | FS3 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | PCI frequency select asynchronous | FS3 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | RTC | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | RTC | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (1) 1M x 64 | None |
|------------------+--------------------+--------------------|
| 16MB | (1) 2M x 64 | None |
|------------------+--------------------+--------------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 32MB | (1) 4M x 64 | None |
|------------------+--------------------+--------------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 64MB | (1) 8M x 64 | None |
|------------------+--------------------+--------------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 72MB | (1) 8M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 128MB | (1) 16M x 64 | None |
|------------------+--------------------+--------------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 |
|------------------+--------------------+--------------------|
| 136MB | (1) 16M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 144MB | (1) 16M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 160MB | (1) 16M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 192MB | (1) 16M x 64 | (1) 8M x 64 |
|------------------+--------------------+--------------------|
| 256MB | (1) 16M x 64 | (1) 16M x 64 |
|------------------------------------------------------------|
| Note: Board accepts SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 512KB | (1) 64K x 64 | Unidentified |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 | BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 66MHz | 2x |1 & 2|1 & 2|2 & 3|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 | BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 66MHz | 2x |1 & 2|1 & 2|2 & 3|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 | BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 66MHz | 2x |1 & 2|1 & 2|2 & 3|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|200MHz | 75MHz | 2x |1 & 2|1 & 2|2 & 3|1 & |2 & |1 & |
| | | | | | | 2 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86L) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 | BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 66MHz | 2x |1 & 2|1 & 2|2 & 3|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|200MHz | 75MHz | 2x |1 & 2|1 & 2|2 & 3|1 & |2 & |1 & |
| | | | | | | 2 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 | BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 60MHz | 2.5x |1 & 2|2 & 3|2 & 3|1 & |2 & |2 & |
| | | | | | | 2 | 3 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|200MHz | 66MHz | 2.5x |1 & 2|2 & 3|2 & 3|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|233MHz | 66MHz | 3x |1 & 2|2 & 3|1 & 2|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86MX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 | BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 60MHz | 2.5x |1 & 2|2 & 3|2 & 3|1 & |2 & |2 & |
| | | | | | | 2 | 3 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|200MHz | 66MHz | 2.5x |1 & 2|2 & 3|2 & 3|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|233MHz | 66MHz | 3x |1 & 2|2 & 3|1 & 2|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 | BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
| 75MHz | 50MHz | 1.5x |1 & 2|1 & 2|1 & 2|2 & |2 & |2 & |
| | | | | | | 3 | 3 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
| 90MHz | 60MHz | 1.5x |1 & 2|1 & 2|1 & 2|1 & |2 & |2 & |
| | | | | | | 2 | 3 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|100MHz | 66MHz | 1.5x |1 & 2|1 & 2|1 & 2|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|120MHz | 60MHz | 1.5x |1 & 2|1 & 2|1 & 2|1 & |2 & |2 & |
| | | | | | | 2 | 3 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|133MHz | 66MHz | 1.5x |1 & 2|1 & 2|1 & 2|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 | BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 66MHz | 2.5x |1 & 2|2 & 3|2 & 3|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|200MHz | 66MHz | 3x |1 & 2|2 & 3|1 & 2|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|233MHz | 66MHz | 3.5x |1 & 2|1 & 2|1 & 2|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 | BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
| 75MHz | 50MHz | 1.5x |1 & 2|1 & 2|1 & 2|2 & |2 & |2 & |
| | | | | | | 3 | 3 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
| 90MHz | 60MHz | 1.5x |1 & 2|1 & 2|1 & 2|1 & |2 & |2 & |
| | | | | | | 2 | 3 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|100MHz | 66MHz | 1.5x |1 & 2|1 & 2|1 & 2|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|120MHz | 60MHz | 2x |1 & 2|1 & 2|2 & 3|1 & |2 & |2 & |
| | | | | | | 2 | 3 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|133MHz | 66MHz | 2x |1 & 2|1 & 2|2 & 3|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|150MHz | 60MHz | 2.5x |1 & 2|2 & 3|2 & 3|1 & |2 & |2 & |
| | | | | | | 2 | 3 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 66MHz | 2.5x |1 & 2|2 & 3|2 & 3|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 | BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 66MHz | 2.5x |1 & 2|2 & 3|2 & 3|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|200MHz | 66MHz | 3x |1 & 2|2 & 3|1 & 2|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|233MHz | 66MHz | 3.5x |1 & 2|1 & 2|1 & 2|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | VID0 | VID1 | VID2 | VID3 |
|---------+------------+------------+------------+-----------|
| 3.4v | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 3.5v | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & |
| | closed | closed | closed | 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage | VID0 | VID1 | VID2 | VID3 |
|---------+------------+------------+------------+-----------|
| 2.1v | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & |
| | closed | closed | closed | 3 closed |
|---------+------------+------------+------------+-----------|
| 2.8v | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 2.9v | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 3.2v | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 3.3v | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & |
| | closed | closed | closed | 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ON BOARD VIDEO SELECTION |
|------------------------------------------------------------|
| Setting | V1 | V2 |
|----------------------+----------------+--------------------|
| » | Enabled | Open | Pins 2 & 4 closed |
|---+------------------+----------------+--------------------|
| | Disabled | Closed | Pins 4 & 6 closed |
+------------------------------------------------------------+