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# VEXTREC COMPUTER, INC.
GMB-P57IPS (VER. 5.11)
Device Type Mainboard
Processor CX 6X86/CX6X86L/CX 6X86MX/AM K5/AM
K6/Pentium/Pentium MMX
Processor Speed 90/100/120/133/150/166/200/233/266MHz
Chip Set Intel 430TX
Maximum Onboard 256MB (EDO & SDRAM supported)
Memory
Cache 512KB
BIOS Award
Dimensions 220mm x 240mm
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)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+-------------+----------------+-----------|
| IDE interface | J2/pins 1 & | Serial port 2 | J13 |
| LED | 2 | | |
|-----------------+-------------+----------------+-----------|
| Turbo LED | J2/pins 3 & | Serial port 1 | J14 |
| | 4 | | |
|-----------------+-------------+----------------+-----------|
| Suspend switch | J2/pins 5 & | Parallel port | J15 |
| | 6 | | |
|-----------------+-------------+----------------+-----------|
| Reset switch | J2/pins 9 & | Floppy drive | J16 |
| | 10 | interface | |
|-----------------+-------------+----------------+-----------|
| Power LED | J2/pins 11 | PS/2 mouse | J17 |
| | - 13 | interface | |
|-----------------+-------------+----------------+-----------|
| Speaker | J2/pins 17 | IR connector | J18 |
| | - 20 | | |
|-----------------+-------------+----------------+-----------|
| IDE interface 1 | J10 | PS/2 mouse | J19 |
| | | port | |
|-----------------+-------------+----------------+-----------|
| IDE interface 2 | J11 | 32-bit PCI | PC1 - PC4 |
| | | slots | |
|-----------------+-------------+----------------+-----------|
| USB connector | J12 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-----------------------------------+-------+----------------|
| | Flash BIOS voltage select 12v | JP4 | Pins 2 & 3 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | Flash BIOS voltage select 5v | JP4 | Pins 1 & 2 |
| | | | 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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) 8M x 64 | (1) 8M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CMOS CONFIGURATION |
|------------------------------------------------------------|
| Size | JP3 | JP6 |
|-------------------------------+--------------+-------------|
| CMOS memory normal operation | Closed | Open |
|-------------------------------+--------------+-------------|
| CMOS memory clear | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 512KB | (1) 64K x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+--------+------------+------+-------+-------+------|
| 90MHz | 60MHz | 1.5x | 1 & | 1 & 2 | 1 & 2 | 1 & |
| | | | 2 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 100MHz | 66MHz | 1.5x | 1 & | 1 & 2 | Open | 1 & |
| | | | 2 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 120MHz | 60MHz | 2x | 2 & | 1 & 2 | 1 & 2 | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 133MHz | 66MHz | 2x | 2 & | 1 & 2 | Open | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 150MHz | 60MHz | 2.5x | 2 & | 2 & 3 | 1 & 2 | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 166MHz | 66MHz | 2.5x | 2 & | 2 & 3 | Open | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 200MHz | 66MHz | 3x | 1 & | 2 & 3 | Open | 1 & |
| | | | 2 | | | 2 |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+--------+------------+------+-------+------+-------|
| 166MHz | 66MHz | 2.5x | 2 & | 2 & 3 | Open | 1 & 2 |
| | | | 3 | | | |
|--------+--------+------------+------+-------+------+-------|
| 200MHz | 66MHz | 3x | 1 & | 2 & 3 | Open | 1 & 2 |
| | | | 2 | | | |
|--------+--------+------------+------+-------+------+-------|
| 233MHz | 66MHz | 3.5x | 1 & | 1 & 2 | Open | 1 & 2 |
| | | | 2 | | | |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+--------+------------+------+-------+-------+------|
| 150MHz | 60MHz | 2x | 2 & | 1 & 2 | 1 & 2 | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 166MHz | 66MHz | 2x | 2 & | 1 & 2 | Open | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 200MHz | 75MHz | 2x | 2 & | 1 & 2 | 3 & 4 | 1 & |
| | | | 3 | | | 2 |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+--------+------------+------+-------+-------+------|
| 166MHz | 66MHz | 2x | 2 & | 2 & 3 | 1 & 2 | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 200MHz | 66MHz | 2.5x | 2 & | 1 & 2 | 3 & 4 | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 200MHz | 66MHz | 2.5x | 2 & | 2 & 3 | Open | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 233MHz | 60MHz | 3x | 2 & | 2 & 3 | 3 & 4 | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 233MHz | 66MHz | 3x | 1 & | 2 & 3 | Open | 1 & |
| | | | 2 | | | 2 |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX M II) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+--------+------------+------+-------+-------+------|
| 300MHz | 66MHz | 3.5x | 1 & | 1 & 2 | Open | 1 & |
| | | | 2 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 300MHz | 75MHz | 3x | 1 & | 2 & 3 | 3 & 4 | 1 & |
| | | | 2 | | | 2 |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+--------+------------+------+-------+-------+------|
| 120MHz | 60MHz | 2x | 2 & | 1 & 2 | 1 & 2 | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 133MHz | 66MHz | 2x | 2 & | 1 & 2 | Open | 1 & |
| | | | 3 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 166MHz | 66MHz | 2.5x | 2 & | 2 & 3 | Open | 1 & |
| | | | 3 | | | 2 |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+--------+------------+------+-------+------+-------|
| 166MHz | 66MHz | 2.5x | 2 & | 2 & 3 | Open | 1 & 2 |
| | | | 3 | | | |
|--------+--------+------------+------+-------+------+-------|
| 200MHz | 66MHz | 3x | 1 & | 2 & 3 | Open | 1 & 2 |
| | | | 2 | | | |
|--------+--------+------------+------+-------+------+-------|
| 233MHz | 66MHz | 3.5x | 1 & | 1 & 2 | Open | 1 & 2 |
| | | | 2 | | | |
|--------+--------+------------+------+-------+------+-------|
| 266MHz | 66MHz | 4x | 2 & | 1 & 2 | Open | 2 & 3 |
| | | | 3 | | | |
|--------+--------+------------+------+-------+------+-------|
| 300MHz | 66MHz | 4.5x | 2 & | 2 & 3 | Open | 2 & 3 |
| | | | 3 | | | |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6-2) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+--------+------------+------+-------+------+-------|
| 266MHz | 66MHz | 4x | 2 & | 1 & 2 | Open | 2 & 3 |
| | | | 3 | | | |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IDT C6) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+--------+------------+------+-------+-------+------|
| 180MHz | 60MHz | 3x | 1 & | 2 & 3 | 1 & 2 | 1 & |
| | | | 2 | | | 2 |
|--------+--------+------------+------+-------+-------+------|
| 200MHz | 66MHz | 3x | 1 & | 2 & 3 | Open | 1 & |
| | | | 2 | | | 2 |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | JP1 | JP7 |
|-------------+-----------------+----------------------------|
| 3.3v | 1 & 2, 3 & 4 | 3 & 4, 5 & 6, 7 & 8 |
|-------------+-----------------+----------------------------|
| 3.5v | 1 & 2, 3 & 4 | 1 & 2, 3 & 4, 5 & 6, 7 & 8 |
|------------------------------------------------------------|
| Note: Pins closed are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| V core | V I/O | JP1 | JP7 |
|-----------+---------+----------------+---------------------|
| 2.2v | 3.3v | Open | 3 & 4 |
|-----------+---------+----------------+---------------------|
| 2.8v | 3.3v | Open | 7 & 8 |
|-----------+---------+----------------+---------------------|
| 2.9v | 3.3v | Open | 1 & 2, 7 & 8 |
|-----------+---------+----------------+---------------------|
| 3.2v | 3.3v | Open | 5 & 6, 7 & 8 |
|------------------------------------------------------------|
| Note: Pins closed are in the closed position. |
+------------------------------------------------------------+