VEXTREC TECHNOLOGY, INC.
GMB-P56IAX (VER. 1.02)
|
Device Type |
Mainboard |
|
Processor |
CX 6X86/AM K5/Pentium/Pentium MMX |
|
Processor Speed |
75/90/100/120/133/150/166/200MHz |
|
Chip Set |
Intel 430VX |
|
Maximum Onboard Memory |
128MB (EDO & SDRAM supported) |
|
Cache |
256/512KB |
|
BIOS |
AMI/Award |
|
I/O Options |
32-bit PCI slots (4), floppy drive interface, IDE interface (2), parallel port, PS/2 mouse port, serial ports (2), cache slot, IR connector, USB connector (2) |
|
Dimensions |
305mm x 210mm |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
ATX power supply |
ATX |
IR connector |
J10 |
|
Reset switch |
J1 |
USB connector 1 |
J11 |
|
Green PC connector |
J2 |
USB connector 2 |
J12 |
|
Suspend LED |
J3 |
Serial port 2 |
J14 |
|
Speaker |
J4 |
Parallel port |
J15 |
|
IDE interface LED |
J5 |
PS/2 mouse port |
J16 |
|
Power LED & keylock |
J6 |
Serial port 1 |
J18 |
|
IDE interface 2 |
J7 |
Power switch |
JP4 |
|
IDE interface 1 |
J8 |
32-bit PCI slots |
PC1 - PC4 |
|
Floppy drive interface |
J9 |
Cache slot |
SL1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
CMOS memory normal operation |
JP1 |
Open |
|
CMOS memory clear |
JP1 |
Closed | |
|
Flash BIOS voltage select 12v |
JP2 |
Pins 1 & 2 closed | |
|
Flash BIOS voltage select 5v |
JP2 |
Pins 2 & 3 closed | |
|
DRAM CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
4MB |
(2) 512KB x 32 |
None |
None |
|
8MB |
(2) 512KB x 32 |
(2) 512KB x 32 |
None |
|
8MB |
(2) 1MB x 32 |
None |
None |
|
16MB |
(2) 1MB x 32 |
(2) 1MB x 32 |
None |
|
16MB |
(2) 2MB x 32 |
None |
None |
|
24MB |
(2) 1MB x 32 |
(2) 1MB x 32 |
(1) 1MB x 64 |
|
24MB |
(2) 2MB x 32 |
(2) 1MB x 32 |
None |
|
32MB |
(2) 2MB x 32 |
(2) 2MB x 32 |
None |
|
32MB |
(2) 4MB x 32 |
None |
None |
|
40MB |
(2) 2MB x 32 |
(2) 2MB x 32 |
(1) 1MB x 64 |
|
40MB |
(2) 4MB x 32 |
(2) 1MB x 32 |
None |
|
48MB |
(2) 2MB x 32 |
(2) 2MB x 32 |
(1) 2MB x 64 |
|
48MB |
(2) 4MB x 32 |
(2) 2MB x 32 |
None |
|
64MB |
(2) 4MB x 32 |
(2) 4MB x 32 |
None |
|
64MB |
(2) 8MB x 32 |
None |
None |
|
72MB |
(2) 4MB x 32 |
(2) 4MB x 32 |
(1) 1MB x 64 |
|
72MB |
(2) 8MB x 32 |
(2) 1MB x 32 |
None |
|
80MB |
(2) 4MB x 32 |
(2) 4MB x 32 |
(1) 2MB x 64 |
|
80MB |
(2) 8MB x 32 |
(2) 2MB x 32 |
None |
|
96MB |
(2) 4MB x 32 |
(2) 4MB x 32 |
(1) 4MB x 64 |
|
96MB |
(2) 8MB x 32 |
(2) 4MB x 32 |
None |
|
128MB |
(2) 8MB x 32 |
(2) 8MB x 32 |
None |
|
Note: Board accepts EDO and SDRAM. | |||
|
DRAM JUMPER CONFIGURATION | ||
|
Voltage |
S7 |
S8 |
|
3.3v |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
5v |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
CACHE CONFIGURATION |
|
256KB onboard, upgradeable to 512KB by inserting a cache module in SL1. |
|
CPU SPEED SELECTION (CX 6X86) | |||||||
|
Speed |
Clock speed |
Multiplier |
JP11 |
JP12 |
S1 |
S2 |
S3 |
|
120MHz |
50MHz |
2x |
2 & 3 |
1 & 2 |
Closed |
Closed |
Open |
|
133MHz |
55MHz |
2x |
2 & 3 |
1 & 2 |
Open |
Closed |
Open |
|
150MHz |
60MHz |
2x |
2 & 3 |
1 & 2 |
Closed |
Open |
Open |
|
166MHz |
66MHz |
2x |
2 & 3 |
1 & 2 |
Open |
Open |
Open |
|
200MHz |
66MHz |
2.5x |
2 & 3 |
1 & 2 |
Open |
Open |
Closed |
|
Note: Numbers designate pins that should be closed. | |||||||
|
CPU SPEED SELECTION (AM K5) | |||||||
|
Speed |
Clock speed |
Multiplier |
JP11 |
JP12 |
S1 |
S2 |
S3 |
|
75MHz |
50MHz |
1.5x |
1 & 2 |
1 & 2 |
Closed |
Closed |
Open |
|
90MHz |
60MHz |
1.5x |
1 & 2 |
1 & 2 |
Closed |
Open |
Open |
|
100MHz |
66MHz |
1.5x |
1 & 2 |
1 & 2 |
Open |
Open |
Open |
|
120MHz |
60MHz |
2x |
1 & 2 |
1 & 2 |
Closed |
Open |
Open |
|
133MHz |
66MHz |
2x |
1 & 2 |
1 & 2 |
Open |
Open |
Open |
|
150MHz |
60MHz |
2.5x |
1 & 2 |
1 & 2 |
Open |
Open |
Open |
|
166MHz |
66MHz |
2.5x |
2 & 3 |
2 & 3 |
Open |
Open |
Open |
|
Note: Numbers designate pins that should be closed. | |||||||
|
CPU SPEED SELECTION (PENTIUM) | |||||||
|
Speed |
Clock speed |
Multiplier |
JP11 |
JP12 |
S1 |
S2 |
S3 |
|
75MHz |
50MHz |
1.5x |
1 & 2 |
1 & 2 |
Closed |
Closed |
Open |
|
90MHz |
60MHz |
1.5x |
1 & 2 |
1 & 2 |
Closed |
Open |
Open |
|
100MHz |
66MHz |
1.5x |
1 & 2 |
1 & 2 |
Open |
Open |
Open |
|
120MHz |
60MHz |
2x |
2 & 3 |
1 & 2 |
Closed |
Open |
Open |
|
133MHz |
66MHz |
2x |
2 & 3 |
1 & 2 |
Open |
Open |
Open |
|
150MHz |
60MHz |
2.5x |
2 & 3 |
2 & 3 |
Closed |
Open |
Open |
|
166MHz |
66MHz |
2.5x |
2 & 3 |
2 & 3 |
Open |
Open |
Open |
|
200MHz |
66MHz |
3x |
1 & 2 |
2 & 3 |
Open |
Open |
Open |
|
Note: Numbers designate pins that should be closed. | |||||||
|
CPU SPEED SELECTION (PENTIUM MMX) | |||||||
|
Speed |
Clock speed |
Multiplier |
JP11 |
JP12 |
S1 |
S2 |
S3 |
|
150MHz |
60MHz |
2.5x |
2 & 3 |
2 & 3 |
Closed |
Open |
Open |
|
166MHz |
66MHz |
2.5x |
2 & 3 |
2 & 3 |
Open |
Open |
Open |
|
200MHz |
66MHz |
3x |
1 & 2 |
2 & 3 |
Open |
Open |
Open |
|
Note: Numbers designate pins that should be closed. | |||||||
|
CPU VOLTAGE SELECTION (SINGLE) | ||||
|
Voltage |
JP8 |
S4 |
S5 |
S6 |
|
3.4v |
Closed |
Closed |
Closed |
Closed |
|
3.5v |
Open |
Closed |
Closed |
Closed |
|
CPU VOLTAGE SELECTION (DUAL) | ||||
|
Voltage (core) |
JP8 |
S4 |
S5 |
S6 |
|
2.8v |
Closed |
Open |
Open |
Open |