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# BIOSTAR MICROTECH INTERNATIONAL CORPORATION
MB-8500TVG
Device Type Mainboard
Processor CX 6X86/CX 6X86L/CX 686MX/AM K5/AM
K6/Pentium/Pentium MMX
Processor Speed 75/90/100/120/133/150/166/180/200/233MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 128MB (EDO & SDRAM supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS AMI
Dimensions 240mm x 220mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse port, PS/2 mouse
interface, serial ports (2), IR connector,
USB connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+----------------+------------|
| Serial port 2 | J4 | CPU fan power | J12 |
|-------------------+----------+----------------+------------|
| Parallel port | J5 | Speaker | J14/pins 1 |
| | | | - 4 |
|-------------------+----------+----------------+------------|
| PS/2 mouse port | J6 | Power LED & | J14/pins 5 |
| | | keylock | - 9 |
|-------------------+----------+----------------+------------|
| PS/2 mouse | J6A | Soft off power | J14/pins |
| interface | | supply | 10 & 11 |
|-------------------+----------+----------------+------------|
| Floppy drive | J7 | Reset switch | J14/pins |
| interface | | | 12 & 13 |
|-------------------+----------+----------------+------------|
| Serial port 1 | J8 | Green PC | J14/pins |
| | | connector | 17 & 18 |
|-------------------+----------+----------------+------------|
| IDE interface 1 | J9 | IDE interface | J14/pins |
| | | LED | 20 & 21 |
|-------------------+----------+----------------+------------|
| USB connector | J10 | IR connector | J14/pins |
| | | | 22 - 26 |
|-------------------+----------+----------------+------------|
| IDE interface 2 | J11 | 32-bit PCI | PC1 – PC4 |
| | | slots | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+-----------+-----------|
| | On board battery enabled | JP5/JP15 | Closed |
|---+--------------------------------+-----------+-----------|
| | On board battery disabled | JP5/JP15 | Open |
|---+--------------------------------+-----------+-----------|
| » | CMOS memory normal operation | JP6 | Open |
|---+--------------------------------+-----------+-----------|
| | CMOS memory clear | JP6 | Closed |
|------------------------------------------------------------|
| Note: JP15 may be used as an alternate to JP5. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 2 | Bank 3 |
|------------------+--------------------+--------------------|
| 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) 8M x 64 | (1) 8M x 64 |
|------------------------------------------------------------|
| Note: Board accepts SDRAM 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| JP2 | JP3 | JP4 |JP7 | JP8 |
| speed | speed | | | | | | |
|-------+--------+----------+------+------+------+----+------|
|120MHz | 50MHz | 2x |Closed|Closed|Closed|Open|Closed|
|-------+--------+----------+------+------+------+----+------|
|133MHz | 55MHz | 2x |Closed|Closed| Open |Open|Closed|
|-------+--------+----------+------+------+------+----+------|
|150MHz | 60MHz | 2x | Open |Closed|Closed|Open|Closed|
|-------+--------+----------+------+------+------+----+------|
|166MHz | 66MHz | 2x |Closed| Open |Closed|Open|Closed|
|-------+--------+----------+------+------+------+----+------|
|200MHz | 75MHz | 2x | Open |Closed| Open |Open|Closed|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP2 | JP3 | JP4 |JP7 | JP8 |
| speed | speed | | | | | | |
|-------+--------+----------+------+------+------+----+------|
|120MHz | 50MHz | 2x |Closed|Closed|Closed|Open|Closed|
|-------+--------+----------+------+------+------+----+------|
|133MHz | 55MHz | 2x |Closed|Closed| Open |Open|Closed|
|-------+--------+----------+------+------+------+----+------|
|150MHz | 60MHz | 2x | Open |Closed|Closed|Open|Closed|
|-------+--------+----------+------+------+------+----+------|
|166MHz | 66MHz | 2x |Closed| Open |Closed|Open|Closed|
|-------+--------+----------+------+------+------+----+------|
|200MHz | 75MHz | 2x | Open |Closed| Open |Open|Closed|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP2 | JP3 | JP4 | JP7 | JP8 |
| speed |speed | | | | | | |
|-------+------+----------+------+------+------+------+------|
|150MHz |60MHz | 2x | Open |Closed|Closed| Open |Closed|
|-------+------+----------+------+------+------+------+------|
|166MHz |66MHz | 2x |Closed| Open |Closed| Open |Closed|
|-------+------+----------+------+------+------+------+------|
|166MHz |60MHz | 2.5x | Open |Closed|Closed|Closed|Closed|
|-------+------+----------+------+------+------+------+------|
|200MHz |75MHz | 2x | Open |Closed| Open | Open |Closed|
|-------+------+----------+------+------+------+------+------|
|200MHz |66MHz | 2.5x |Closed| Open |Closed|Closed|Closed|
|-------+------+----------+------+------+------+------+------|
|200MHz |60MHz | 3x | Open |Closed|Closed|Closed| Open |
|-------+------+----------+------+------+------+------+------|
|233MHz |75MHz | 2.5x | Open |Closed| Open |Closed|Closed|
|-------+------+----------+------+------+------+------+------|
|233MHz |66MHz | 3x |Closed| Open |Closed|Closed| Open |
|-------+------+----------+------+------+------+------+------|
|266MHz |66MHz | 3.5x |Closed| Open |Closed| Open | Open |
|-------+------+----------+------+------+------+------+------|
|266MHz |75MHz | 3x | Open |Closed| Open |Closed| Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP2 | JP3 | JP4 | JP7 | JP8 |
| speed |speed | | | | | | |
|-------+------+----------+------+------+------+------+------|
| 75MHz |50MHz | 1.5x |Closed|Closed|Closed| Open | Open |
|-------+------+----------+------+------+------+------+------|
| 90MHz |60MHz | 1.5x | Open |Closed|Closed| Open | Open |
|-------+------+----------+------+------+------+------+------|
|100MHz |66MHz | 1.5x |Closed| Open |Closed| Open | Open |
|-------+------+----------+------+------+------+------+------|
|120MHz |60MHz | 1.5x | Open |Closed|Closed| Open | Open |
|-------+------+----------+------+------+------+------+------|
|133MHz |66MHz | 2x |Closed| Open |Closed| Open |Closed|
|-------+------+----------+------+------+------+------+------|
|166MHz |66MHz | 2.5x | Open |Closed|Closed|Closed|Closed|
|-------+------+----------+------+------+------+------+------|
|200MHz |66MHz | 3x |Closed| Open |Closed|Closed| Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP2 |JP3 | JP4 | JP7 | JP8 |
| speed | speed | | | | | | |
|-------+--------+----------+------+----+------+------+------|
|166MHz | 66MHz | 2.5x |Closed|Open|Closed|Closed|Closed|
|-------+--------+----------+------+----+------+------+------|
|200MHz | 66MHz | 3x |Closed|Open|Closed|Closed| Open |
|-------+--------+----------+------+----+------+------+------|
|233MHz | 66MHz | 3.5x |Closed|Open|Closed| Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JP2 | JP3 | JP4 | JP7 | JP8 |
| speed |speed | | | | | | |
|-------+------+----------+------+------+------+------+------|
| 75MHz |50MHz | 1.5x |Closed|Closed|Closed| Open | Open |
|-------+------+----------+------+------+------+------+------|
| 90MHz |60MHz | 1.5x | Open |Closed|Closed| Open | Open |
|-------+------+----------+------+------+------+------+------|
|100MHz |66MHz | 1.5x |Closed| Open |Closed| Open | Open |
|-------+------+----------+------+------+------+------+------|
|120MHz |60MHz | 2x | Open |Closed|Closed| Open |Closed|
|-------+------+----------+------+------+------+------+------|
|133MHz |66MHz | 2x |Closed| Open |Closed| Open |Closed|
|-------+------+----------+------+------+------+------+------|
|150MHz |60MHz | 2.5x | Open |Closed|Closed|Closed|Closed|
|-------+------+----------+------+------+------+------+------|
|166MHz |66MHz | 2.5x |Closed| Open |Closed|Closed|Closed|
|-------+------+----------+------+------+------+------+------|
|180MHz |60MHz | 3x | Open |Closed|Closed|Closed| Open |
|-------+------+----------+------+------+------+------+------|
|200MHz |66MHz | 3x |Closed| Open |Closed|Closed| Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP2 |JP3 | JP4 | JP7 | JP8 |
| speed | speed | | | | | | |
|-------+--------+----------+------+----+------+------+------|
|166MHz | 66MHz | 2.5x |Closed|Open|Closed|Closed|Closed|
|-------+--------+----------+------+----+------+------+------|
|200MHz | 66MHz | 3x |Closed|Open|Closed|Closed| Open |
|-------+--------+----------+------+----+------+------+------|
|233MHz | 66MHz | 3.5x |Closed|Open|Closed| Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | JP10 | JP11 |
|---------+-------------------+------------------------------|
| 3.5v | Pins 5 & 6 closed | Pins 1 & 2, 3 & 4, 5 & 6 |
| | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage | V core | JP10 | JP11 |
|--------------+-------------+-------------------+-----------|
| 3.4v | 2.8v | Open | Open |
|--------------+-------------+-------------------+-----------|
| 3.4v | 2.9v | Pins 1 & 2 closed | Open |
|--------------+-------------+-------------------+-----------|
| 3.4v | 3.2v | Pins 3 & 4 closed | Open |
+------------------------------------------------------------+