BIOSTAR MICROTECH INTERNATIONAL CORPORATION
MB-8500 TUR (VER. 1)
Device Type |
Mainboard |
Processor |
CX 6X86/AM K5/Pentium/Pentium MMX |
Processor Speed |
75/90/100/120/133/150/166/180/200MHz |
Chip Set |
Unidentified |
Video Chip Set |
None |
Maximum Onboard Memory |
128MB (EDO & SDRAM supported) |
Maximum Video Memory |
None |
Cache |
256/512KB |
BIOS |
AMI |
Dimensions |
285mm x 220mm |
I/O Options |
32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), cache slot, IR connector, USB connector |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
PS/2 mouse interface |
J1 |
Speaker |
J16/pins 1 - 4 |
Floppy drive interface |
J7 |
Power LED & keylock |
J16/pins 5 - 9 |
IDE interface 1 |
J8 |
Turbo LED |
J16/pins 10 & 11 |
USB connector |
J9 |
Reset switch |
J16/pins 12 & 13 |
Serial port 1 |
J10 |
Green PC LED |
J16/pins 14 & 15 |
Serial port 2 |
J11 |
Green PC connector |
J16/pins 17 & 18 |
Parallel port |
J12 |
IDE interface LED |
J16/pins 20 & 21 |
IDE interface 2 |
J13 |
Turbo switch |
J16/pins 23 & 24 |
Chassis fan power |
J14 |
32-bit PCI slots |
PC1 PC3 |
IR connector |
J15 |
Cache slot |
SL1 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
|
Factory configured - do not alter |
J6 |
Unidentified |
|
Factory configured - do not alter |
JP4 |
Unidentified |
|
Factory configured - do not alter |
JP5 |
Unidentified |
|
Factory configured - do not alter |
JP9 |
Unidentified |
|
Factory configured - do not alter |
JP10 |
Unidentified |
|
CMOS memory normal operation |
JP12 |
Open |
CMOS memory clear |
JP12 |
Closed | |
Flash BIOS select 5v |
JP13 |
Pins 1 & 2 closed | |
Flash BIOS select 12v |
JP13 |
Pins 2 & 3 closed | |
Flash BIOS select 0v or EPROM |
JP13 |
Open |
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 |
SIMM CONFIGURATION (CONT) | ||
Size |
Bank 0 |
Bank 1 |
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 |
8MB |
(1) 1M x 64 |
16MB |
(1) 2M x 64 |
32MB |
(1) 4M x 64 |
CACHE CONFIGURATION | |||
Size |
Bank 0 |
SL1 |
TAG |
256KB |
(2) 32K x 32 |
Not installed |
Unidentified |
512KB |
(2) 32K x 32 |
256KB module installed |
Unidentified |
CACHE JUMPER CONFIGURATION | |
Size |
JP11 |
256KB |
Pins 1 & 2 closed |
512KB |
Pins 2 & 3 closed |
CPU SPEED SELECTION (CX 6X86) | ||||||
CPU speed |
Clock speed |
Multiplier |
JP1 |
JP2 |
JP6/ pins 1 & 2 |
JP6/ pins 3 & 4 |
120MHz |
50MHz |
2x |
Open |
Open |
Closed |
Closed |
133MHz |
55MHz |
2x |
Open |
Open |
Open |
Open |
150MHz |
60MHz |
2x |
Open |
Open |
Closed |
Open |
166MHz |
66MHz |
2x |
Open |
Open |
Open |
Closed |
CPU SPEED SELECTION (AM K5) | ||||||
CPU speed |
Clock speed |
Multiplier |
JP1 |
JP2 |
JP6/ pins 1 & 2 |
JP6/ pins 3 & 4 |
75MHz |
66MHz |
1x |
Closed |
Open |
Open |
Closed |
75MHz |
50MHz |
1.5x |
Open |
Open |
Closed |
Closed |
90MHz |
55MHz |
1.5x |
Open |
Open |
Open |
Open |
90MHz |
60MHz |
1.5x |
Open |
Open |
Closed |
Open |
100MHz |
66MHz |
1.5x |
Open |
Open |
Open |
Closed |
CPU SPEED SELECTION (INTEL) | ||||||
CPU speed |
Clock speed |
Multiplier |
JP1 |
JP2 |
JP6/ pins 1 & 2 |
JP6/ pins 3 & 4 |
75MHz |
50MHz |
1.5x |
Open |
Open |
Closed |
Closed |
90MHz |
60MHz |
1.5x |
Open |
Open |
Closed |
Open |
100MHz |
66MHz |
1.5x |
Open |
Open |
Open |
Closed |
120MHz |
60MHz |
2x |
Closed |
Open |
Closed |
Open |
133MHz |
66MHz |
2x |
Closed |
Open |
Open |
Closed |
150MHz |
60MHz |
2.5x |
Closed |
Closed |
Closed |
Open |
166MHz |
66MHz |
2.5x |
Closed |
Closed |
Open |
Closed |
180MHz |
60MHz |
3x |
Open |
Closed |
Closed |
Open |
200MHz |
66MHz |
3x |
Open |
Closed |
Open |
Closed |
CPU SPEED SELECTION (INTEL MMX) | ||||||
CPU speed |
Clock speed |
Multiplier |
JP1 |
JP2 |
JP6/ pins 1 & 2 |
JP6/ pins 3 & 4 |
166MHz |
66MHz |
2.5x |
Closed |
Closed |
Open |
Closed |
180MHz |
60MHz |
3x |
Open |
Closed |
Closed |
Open |
200MHz |
66MHz |
3x |
Open |
Closed |
Open |
Closed |
CPU TYPE SELECTION | |||
Type |
JP7 |
JP14 |
JP15 |
AMD |
Open |
Pins 1 & 2 closed |
Pins 1 & 2, 3 & 4 closed |
Cyrix |
Open |
Pins 1 & 2 closed |
Pins 1 & 2, 3 & 4 closed |
P54C/CQS/CT |
Open |
Pins 1 & 2 closed |
Pins 1 & 2, 3 & 4 closed |
P55C/CT |
Closed |
Pins 2 & 3 closed |
Open |
CPU VOLTAGE SELECTION | |
Voltage |
JP8 |
3.4v |
Closed |
3.5v |
Open |