Acrosser Technology AR-B1579 - Page 33

AR-B1579 User's Guide
3-13
B. CPU Logic Core Voltage Select (SW2)
ON
1234
OFF
SW2 -- Factory Default Setting
Figure 3-28 SW2: CPU Logic Core Voltage
SW2-1 SW2-2 SW2-3 SW2-4 Voltage
OFF ON OFF OFF 2.16V
ON ON OFF OFF 2.26V
ON OFF OFF ON 2.86V
OFF ON OFF ON 2.96V
OFF ON ON ON 3.36V
ON ON ON ON 3.46V
Table 3-7 SW2: CPU Logic Core Voltage
C. CPU Cooling Fan Power Connector (J10)
1 +12V
2 GND
12
Figure 3-29 J10: CPU Cooling Fan Power Connector
D. P54C/P55C CPU Type Select (JP5)
Intel Pentium
AMD K5
Cyrix 6x86
IDT Winchip C6
1
2
3
46
5
Intel Pentium MMX
AMD K6
Cyrix 6x86L
Cyrix 6x86MX
(Factory Preset)
1
2
3
46
5
Figure 3-30 JP5: P55C/P54C CPU Type Select
Intel CPU
SW1
SW1-1 SW1-2 SW1-3
CPU Type
Work
Frequency
Clock Multiplier BF0 BF1 BF2
SW2
Pentium - 75 75MHz 50.0MHz 1.5X Off Off Off 3.36V
Pentium - 90 90MHz 60.0MHz 1.5X Off Off Off
Pentium - 100 100MHz 66.7MHz 1.5X Off Off Off
Pentium - 120 120MHz 60.0MHz 2.0X On Off Off
Pentium - 133 133MHz 66.7MHz 2.0X On Off Off
Pentium - 150 150MHz 60.0MHz 2.5X On On Off
Pentium - 166 166MHz 66.7MHz 2.5X On On Off
Pentium - 200 200MHz 66.7MHz 3.0X Off On Off
MMX-166 166MHz 66.7MHz 2.5X On On Off 2.86V
MMX-200 200MHz 66.7MHz 3.0X Off On Off
MMX-233 233MHz 66.7MHz 3.5X Off Off Off
Table 3-8 Intel CPU Base Clock Setting
NOTE:
1. SW1 jumper setting – BF0-BF2: On presents Low, Off presents High.
2. Intel CPU MMX - 200 is factory default setting.