ABIT COMPUTER CORPORATION
PR5B (REV. 1.01)
|
Processor |
CX M1/AM K5/Pentium |
|
Processor Speed |
75/90/100/120/133/150/166/200MHz |
|
Chip Set |
Intel |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
128MB (EDO supported) |
|
Maximum Video Memory |
None |
|
Cache |
256/512KB |
|
BIOS |
Award |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), cache slot, IR connector, USB connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
CN1 |
Reset switch |
J6 pins 1 & 2 |
|
Serial port 2 |
CN2 |
Green PC connector |
J6 pins 6 & 7 |
|
Parallel port |
CN3 |
Turbo LED |
J6 pins 8 & 9 |
|
Floppy drive interface |
CN4 |
Speaker |
J6 pins 11 - 14 |
|
IDE interface 2 |
CN5 |
Power LED & keylock |
J6 pins 16 - 20 |
|
IDE interface 1 |
CN6 |
IR connector |
JP2 |
|
USB connector |
CN7 |
Chassis fan power |
JP9 |
|
PS/2 mouse port |
J4 |
32-bit PCI slots |
PC1 - PC3 |
|
IDE interface LED |
J5 |
Cache slot |
SL1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
DS8 |
Off |
|
|
Factory configured - do not alter |
J1 |
Unidentified |
|
|
CMOS memory normal operation |
JP3 |
Pins 1 & 2 closed |
|
CMOS memory clear |
JP3 |
Pins 2 & 3 closed | |
|
Flash BIOS voltage select 12v |
JP8 |
Pins 2 & 3 closed | |
|
Flash BIOS voltage select 5v |
JP8 |
Pins 1 & 2 closed | |
|
Note: JP8 may not be present on all boards. | |||
|
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) 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. | ||
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
SL1 |
|
256KB (A) |
(2) 32K x 32 |
Not installed |
|
256KB (B) |
None |
256KB module installed |
|
512KB (A) |
(2) 32K x 32 |
256KB module installed |
|
512KB (B) |
(2) 64K x 32 |
Not installed |
|
512KB (C) |
None |
512KB module installed |
|
CACHE JUMPER CONFIGURATION | |
|
Size |
JP1 |
|
None |
Open |
|
256KB (A) |
Open |
|
256KB (B) |
Open |
|
512KB (A) |
Closed |
|
512KB (B) |
Open |
|
512KB (C) |
Closed |
|
CPU SPEED SELECTION (CYRIX PLL52C61-01 OR PLL52C61-21 CLOCK) | |||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/1 |
DS/2 |
DS/3 N |
DS/3 T |
DS/4N |
|
120MHz |
50MHz |
2x |
Off |
On |
On |
N/A |
On |
|
133MHz |
55MHz |
2x |
Off |
On |
On |
N/A |
Off |
|
150MHz |
60MHz |
2x |
Off |
On |
On |
Off |
On |
|
166MHz |
66MHz |
2x |
Off |
On |
Off |
Off |
On |
|
200MHz |
75MHz |
2x |
Off |
On |
On |
N/A |
Off |
|
Note: N = normal mode. T = turbo mode. | |||||||
|
CPU SPEED SELECTION (CYRIX PLL52C61-01 OR PLL52C61-21 CLOCK, CONT) | |||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/4 T |
DS/5 |
DS/6 |
DS/7 N |
DS/7 T |
|
120MHz |
50MHz |
2x |
N/A |
Off |
Off |
On |
N/A |
|
133MHz |
55MHz |
2x |
N/A |
On |
Off |
On |
N/A |
|
150MHz |
60MHz |
2x |
Off |
On |
Off |
Off |
On |
|
166MHz |
66MHz |
2x |
Off |
On |
Off |
On |
Off |
|
200MHz |
75MHz |
2x |
N/A |
On |
Off |
Off |
N/A |
|
Note: N = normal mode. T = turbo mode. | |||||||
|
CPU SPEED SELECTION (CYRIX PLL52C59-14T OR ICS9159-14 CLOCK) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/1 |
DS/2 |
DS/3 |
DS/4 |
|
120MHz |
50MHz |
2x |
Off |
On |
On |
On |
|
133MHz |
55MHz |
2x |
Off |
On |
Off |
Off |
|
150MHz |
60MHz |
2x |
Off |
On |
Off |
On |
|
166MHz |
66MHz |
2x |
Off |
On |
On |
Off |
|
200MHz |
75MHz |
2x |
Off |
On |
Off |
Off |
|
CPU SPEED SELECTION (CYRIX PLL52C59-14T OR ICS9159-14 CLOCK, CONT) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/5 |
DS/6 |
DS/7 N |
DS/7 T |
|
120MHz |
50MHz |
2x |
Off |
Off |
Off |
On |
|
133MHz |
55MHz |
2x |
On |
Off |
Off |
N/A |
|
150MHz |
60MHz |
2x |
On |
Off |
Off |
On |
|
166MHz |
66MHz |
2x |
On |
Off |
Off |
On |
|
200MHz |
75MHz |
2x |
On |
Off |
On |
N/A |
|
Note: N = normal mode. T = turbo mode. | ||||||
|
CPU SPEED SELECTION (AMD PLL52C61-01 OR PLL52C61-21 CLOCK) | |||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/1 |
DS/2 |
DS/3 N |
DS/3 T |
DS/4N |
|
75MHz |
50MHz |
1.5x |
Off |
Off |
On |
N/A |
On |
|
90MHz |
60MHz |
1.5x |
Off |
Off |
On |
Off |
On |
|
100MHz |
66MHz |
1.5x |
Off |
Off |
Off |
Off |
On |
|
90MHz |
60MHz |
1.5x |
Off |
Off |
On |
Off |
On |
|
100MHz |
66MHz |
1.5x |
Off |
Off |
Off |
Off |
On |
|
120MHz |
60MHz |
2x |
Off |
On |
On |
Off |
On |
|
133MHz |
66MHz |
2x |
Off |
On |
Off |
Off |
On |
|
Note: N = normal mode. T = turbo mode. | |||||||
|
CPU SPEED SELECTION (AMD PLL52C61-01 OR PLL52C61-21 CLOCK, CONT) | |||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/4 T |
DS/5 |
DS/6 |
DS/7 N |
DS/7 T |
|
75MHz |
50MHz |
1.5x |
N/A |
Off |
Off |
On |
N/A |
|
90MHz |
60MHz |
1.5x |
Off |
On |
Off |
Off |
On |
|
100MHz |
66MHz |
1.5x |
Off |
On |
Off |
On |
Off |
|
90MHz |
60MHz |
1.5x |
Off |
On |
Off |
Off |
On |
|
100MHz |
66MHz |
1.5x |
Off |
On |
Off |
On |
Off |
|
120MHz |
60MHz |
2x |
Off |
On |
Off |
Off |
On |
|
133MHz |
66MHz |
2x |
Off |
On |
Off |
On |
Off |
|
Note: N = normal mode. T = turbo mode. | |||||||
|
CPU SPEED SELECTION (AMD PLL52C59-14T OR ICS9159-14 CLOCK) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/1 |
DS/2 |
DS/3 |
DS/4 |
|
75MHz |
50MHz |
1.5x |
Off |
Off |
On |
On |
|
90MHz |
60MHz |
1.5x |
Off |
Off |
Off |
On |
|
100MHz |
66MHz |
1.5x |
Off |
Off |
On |
Off |
|
90MHz |
60MHz |
1.5x |
Off |
Off |
Off |
On |
|
100MHz |
66MHz |
1.5x |
Off |
Off |
On |
Off |
|
120MHz |
60MHz |
2x |
Off |
On |
Off |
On |
|
133MHz |
66MHz |
2x |
Off |
On |
On |
Off |
|
CPU SPEED SELECTION (AMD PLL52C59-14T OR ICS9159-14 CLOCK, CONT) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/5 |
DS/6 |
DS/7 N |
DS/7 T |
|
75MHz |
50MHz |
1.5x |
Off |
Off |
Off |
N/A |
|
90MHz |
60MHz |
1.5x |
On |
Off |
Off |
On |
|
100MHz |
66MHz |
1.5x |
On |
Off |
Off |
On |
|
90MHz |
60MHz |
1.5x |
On |
Off |
Off |
On |
|
100MHz |
66MHz |
1.5x |
On |
Off |
Off |
On |
|
120MHz |
60MHz |
2x |
On |
Off |
Off |
On |
|
133MHz |
66MHz |
2x |
On |
Off |
Off |
On |
|
Note: N = normal mode. T = turbo mode. | ||||||
|
CPU SPEED SELECTION (INTEL PLL52C61-01 OR PLL52C61-21 CLOCK) | |||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/1 |
DS/2 |
DS/3 N |
DS/3 T |
DS/4N |
|
75MHz |
50MHz |
1.5x |
Off |
Off |
On |
N/A |
On |
|
90MHz |
60MHz |
1.5x |
Off |
Off |
On |
Off |
On |
|
100MHz |
66MHz |
1.5x |
Off |
Off |
Off |
Off |
On |
|
120MHz |
60MHz |
2x |
Off |
On |
On |
Off |
On |
|
133MHz |
66MHz |
2x |
Off |
On |
Off |
Off |
On |
|
150MHz |
60MHz |
2.5x |
On |
On |
On |
Off |
On |
|
166MHz |
66MHz |
2.5x |
On |
On |
Off |
Off |
On |
|
200MHz |
66MHz |
3x |
On |
Off |
Off |
Off |
On |
|
Note: N = normal mode. T = turbo mode. | |||||||
|
CPU SPEED SELECTION (INTEL PLL52C61-01 OR PLL52C61-21 CLOCK, CONT) | |||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/4 T |
DS/5 |
DS/6 |
DS/7 N |
DS/7 T |
|
75MHz |
50MHz |
1.5x |
N/A |
Off |
Off |
On |
N/A |
|
90MHz |
60MHz |
1.5x |
Off |
On |
Off |
Off |
On |
|
100MHz |
66MHz |
1.5x |
Off |
On |
Off |
On |
Off |
|
120MHz |
60MHz |
2x |
Off |
On |
Off |
Off |
On |
|
133MHz |
66MHz |
2x |
Off |
On |
Off |
On |
Off |
|
150MHz |
60MHz |
2.5x |
Off |
On |
Off |
Off |
On |
|
166MHz |
66MHz |
2.5x |
Off |
On |
Off |
On |
Off |
|
200MHz |
66MHz |
3x |
Off |
On |
Off |
On |
Off |
|
Note: N = normal mode. T = turbo mode. | |||||||
|
CPU SPEED SELECTION (INTEL PLL52C59-14T OR ICS9159-14 CLOCK) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/1 |
DS/2 |
DS/3 |
DS/4 |
|
75MHz |
50MHz |
1.5x |
Off |
Off |
On |
On |
|
90MHz |
60MHz |
1.5x |
Off |
Off |
Off |
On |
|
100MHz |
66MHz |
1.5x |
Off |
Off |
On |
Off |
|
120MHz |
60MHz |
2x |
Off |
On |
Off |
On |
|
133MHz |
66MHz |
2x |
Off |
On |
On |
Off |
|
150MHz |
60MHz |
2.5x |
On |
On |
Off |
On |
|
166MHz |
66MHz |
2.5x |
On |
On |
On |
Off |
|
200MHz |
66MHz |
3x |
On |
Off |
On |
Off |
|
CPU SPEED SELECTION (INTEL PLL52C59-14T OR ICS9159-14 CLOCK, CONT) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
DS/5 |
DS/6 |
DS/7 N |
DS/7 T |
|
75MHz |
50MHz |
1.5x |
Off |
Off |
Off |
On |
|
90MHz |
60MHz |
1.5x |
On |
Off |
Off |
On |
|
100MHz |
66MHz |
1.5x |
On |
Off |
Off |
On |
|
120MHz |
60MHz |
2x |
On |
Off |
Off |
On |
|
133MHz |
66MHz |
2x |
On |
Off |
Off |
On |
|
150MHz |
60MHz |
2.5x |
On |
Off |
Off |
On |
|
166MHz |
66MHz |
2.5x |
On |
Off |
Off |
On |
|
200MHz |
66MHz |
3x |
On |
Off |
Off |
On |
|
Note: N = normal mode. T = turbo mode. | ||||||
|
CPU VOLTAGE SELECTION (CYRIX) | ||||||||||
|
Voltage |
V core |
VC/1 |
VC/2 |
VC/3 |
VC/4 |
VC/5 |
VC/6 |
VC/7 |
VC/8 | |
|
2.7v |
3.3v |
Off |
Off |
Off |
Off |
On |
Off |
Off |
On | |
|
2.8v |
3.3v |
Off |
Off |
Off |
On |
Off |
Off |
Off |
On | |
|
2.93v |
3.3v |
Off |
Off |
On |
Off |
Off |
Off |
Off |
On | |
|
3.38v |
3.3v |
Off |
On |
Off |
Off |
Off |
Off |
Off |
On | |
|
3.52v |
3.3v |
On |
Off |
Off |
Off |
Off |
Off |
Off |
On | |
|
CPU VOLTAGE SELECTION (AMD) | ||||||||||
|
Voltage |
V core |
VC/1 |
VC/2 |
VC/3 |
VC/4 |
VC/5 |
VC/6 |
VC/7 |
VC/8 | |
|
2.7v |
3.38v |
Off |
Off |
Off |
Off |
On |
Off |
On |
Off | |
|
2.8v |
3.38v |
Off |
Off |
Off |
On |
Off |
Off |
On |
Off | |
|
2.93v |
3.38v |
Off |
Off |
On |
Off |
Off |
Off |
On |
Off | |
|
3.38v |
3.3v |
Off |
On |
Off |
Off |
Off |
Off |
On |
Off | |
|
3.52v |
3.3v |
On |
Off |
Off |
Off |
Off |
Off |
On |
Off | |
|
CPU VOLTAGE SELECTION (INTEL) | ||||||||||
|
Voltage |
V core |
VC/1 |
VC/2 |
VC/3 |
VC/4 |
VC/5 |
VC/6 |
VC/7 |
VC/8 | |
|
2.7v |
3.3v |
Off |
Off |
Off |
Off |
On |
Off |
Off |
On | |
|
2.8v |
3.3v |
Off |
Off |
Off |
On |
Off |
Off |
Off |
On | |
|
2.93v |
3.3v |
Off |
Off |
On |
Off |
Off |
Off |
Off |
On | |
|
3.38v |
3.3v |
Off |
On |
Off |
Off |
Off |
Off |
Off |
On | |
|
3.52v |
3.3v |
On |
Off |
Off |
Off |
Off |
Off |
Off |
On | |