PIONEX TECHNOLOGIES, INC.
MB-8500TAC-A (VER. 5)
|
Processor |
CX M1/AM K5/Pentium |
|
Processor Speed |
66/75/90/100/120/133/150/166/180/200MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
128MB (EDO supported) |
|
Maximum Video Memory |
None |
|
Cache |
256/512KB |
|
BIOS |
AMI |
|
Dimensions |
275mm x 220mm |
|
I/O Options |
32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), IR connectors (2) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
CN1 |
Green PC connector |
J8 pins 17 & 18 |
|
Parallel port |
CN2 |
IDE interface LED |
J8 pins 20 & 21 |
|
Serial port 2 |
CN3 |
VCC ground connector |
J8 pins 25 & 26 |
|
Floppy drive interface |
CN4 |
PS/2 mouse port |
J11 |
|
IDE interface 2 |
CN5 |
IR connector |
J12 |
|
IDE interface 1 |
CN6 |
IR connector |
J12A |
|
Speaker |
J8 pins 1 - 4 |
PS/2 mouse interface |
J13 |
|
Power LED & keylock |
J8 pins 5 - 9 |
Chassis fan power |
JP19 |
|
Turbo LED |
J8 pins 10 & 11 |
32-bit PCI slots |
PC1 - PC3 |
|
Reset switch |
J8 pins 12 & 13 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
JP2 |
Unidentified |
|
|
CMOS memory normal operation |
JP4 |
Open |
|
CMOS memory clear |
JP4 |
Closed | |
|
Flash BIOS voltage select 12v |
JP5 |
Pins 2 & 3 closed | |
|
Flash BIOS voltage select 5v |
JP5 |
Pins 1 & 2 closed | |
|
BIOS type select EPROM |
JP5 |
Open | |
|
Secondary IDE IRQ select IRQ15 |
JP8 |
Pins 1 & 2 closed | |
|
Secondary IDE IRQ select IRQ through PCI |
JP8 |
Pins 2 & 3 closed | |
|
Primary IDE IRQ14 enabled |
JP9 |
Closed | |
|
Primary IDE IRQ14 disabled |
JP9 |
Open | |
|
|
Factory configured - do not alter |
JP12 |
Unidentified |
|
|
Factory configured - do not alter |
JP13 |
Unidentified |
|
|
Factory configured - do not alter |
JP22 |
Pins 2 & 3 closed |
|
|
Factory configured - do not alter |
JP30 |
Pins 1 & 2 closed |
|
|
Factory configured - do not alter |
JP32 |
Unidentified |
|
DRAM 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) 1M x 36 |
(2) 2M x 36 |
|
32MB |
(2) 4M x 36 |
None |
|
32MB |
(2) 2M x 36 |
(2) 2M x 36 |
|
40MB |
(2) 1M x 36 |
(2) 4M x 36 |
|
48MB |
(2) 2M x 36 |
(2) 4M x 36 |
|
64MB |
(2) 8M x 36 |
None |
|
64MB |
(2) 4M x 36 |
(2) 4M x 36 |
|
DRAM CONFIGURATION (CONT) | ||
|
Size |
Bank 0 |
Bank 1 |
|
72MB |
(2) 1M x 36 |
(2) 8M x 36 |
|
80MB |
(2) 2M x 36 |
(2) 8M x 36 |
|
96MB |
(2) 4M x 36 |
(2) 8M x 36 |
|
128MB |
(2) 8M x 36 |
(2) 8M x 36 |
|
Note: Board accepts EDO memory. | ||
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
256KB (A) |
None |
(2) 32K x 32 |
None |
|
256KB (B) |
(8) 32K x 8 |
None |
(1) 8K x 8 |
|
512KB (A) |
(8) 64K x 8 |
None |
(1) 16K/32K x 8 |
|
512KB (B) |
(8) 64K x 8 |
None |
(1) 16K x 8 |
|
Note: Board will either have asynchronous or synchronous cache installed. | |||
|
CACHE JUMPER CONFIGURATION | |
|
Size |
JP10 |
|
None |
Open |
|
256KB (B) (STD/Aster TAG) |
Open |
|
512KB (A) (STD TAG) |
Pins 1 & 2 closed |
|
512KB (B) (Aster TAG) |
Pins 2 & 3 closed |
|
CPU SPEED SELECTION (CYRIX) | |||||||
|
CPU speed |
Clock speed |
Multiplier |
JP6 |
JP7 |
JP15 |
JP16 |
JP21 |
|
120MHz |
50MHz |
2x |
Open |
Open |
Open |
Closed |
1 & 2 |
|
133MHz |
55MHz |
2x |
Open |
Closed |
Open |
Closed |
1 & 2 |
|
150MHz |
60MHz |
2x |
Closed |
Closed |
Open |
Closed |
2 & 3 |
|
166MHz |
66MHz |
2x |
Closed |
Open |
Open |
Closed |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||||
|
CPU SPEED SELECTION (AMD) | |||||||
|
CPU speed |
Clock speed |
Multiplier |
JP6 |
JP7 |
JP15 |
JP16 |
JP21 |
|
75MHz |
66MHz |
1x |
Closed |
Open |
Open |
Closed |
2 & 3 |
|
75MHz |
50MHz |
1.5x |
Open |
Open |
Open |
Open |
1 & 2 |
|
90MHz |
55MHz |
1.5x |
Open |
Closed |
Open |
Open |
2 & 3 |
|
90MHz |
60MHz |
1.5x |
Closed |
Closed |
Open |
Open |
2 & 3 |
|
100MHz |
66MHz |
1.5x |
Closed |
Open |
Open |
Open |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||||
|
CPU SPEED SELECTION (INTEL) | |||||||
|
CPU speed |
Clock speed |
Multiplier |
JP6 |
JP7 |
JP15 |
JP16 |
JP21 |
|
75MHz |
50MHz |
1.5x |
Open |
Open |
Open |
Open |
1 & 2 |
|
90MHz |
60MHz |
1.5x |
Closed |
Closed |
Open |
Open |
2 & 3 |
|
100MHz |
66MHz |
1.5x |
Closed |
Open |
Open |
Open |
2 & 3 |
|
120MHz |
60MHz |
2x |
Closed |
Closed |
Open |
Closed |
2 & 3 |
|
133MHz |
66MHz |
2x |
Closed |
Open |
Open |
Closed |
2 & 3 |
|
150MHz |
60MHz |
2.5x |
Closed |
Closed |
Closed |
Closed |
2 & 3 |
|
166MHz |
66MHz |
2.5x |
Closed |
Open |
Closed |
Closed |
2 & 3 |
|
180MHz |
60MHz |
3x |
Closed |
Closed |
Closed |
Open |
2 & 3 |
|
200MHz |
66MHz |
3x |
Closed |
Open |
Closed |
Open |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||||
|
CPU TYPE SELECTION | |||
|
Type |
JP20 |
JP23 |
JP24 |
|
CX M1 |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |
Open |
|
AM K5 |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |
Open |
|
P54C/CQS/CT |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |
Open |
|
P55C/CT |
Open |
Pins 2 & 3 closed |
Closed |
|
CPU VOLTAGE SELECTION | |
|
Voltage |
JP27 |
|
3.4v |
Closed |
|
3.5v |
Open |
|
SERIAL PORT 2 SELECTION | ||
|
Setting |
JP35 |
JP36 |
|
Used as COM2 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
Used as IR connector |
Pins 2 & 3 closed |
Pins 2 & 3 closed |