Specifications

AR-B1564 User¡¦s Guide
3-15
IDT Winchip CPU
SW1
SW1-1 SW1-2 SW1-3
CPU Type Work
Frequency
Clock
Multiplier
BF0 BF1 BF2
SW3
IDT C6-180 180MHz 60.0MHz 3.0X
Off
On
Off
Setting F
IDT C6-200 200MHz 66.7MHz 3.0X
Off
On
Off
Setting F
IDT C6-225 225MHz 75.0MHz 3.0X
Off
On
Off
Setting F
IDT C6-240 240MHz 60.0MHz 4.0X
On
Off
On
Setting F
Table 3-11 IDT Winchip CPU Base Clock Setting
NOTE: 1. SW1 jumper setting – BF0-BF2: On presents Low, Off presents High.
2. Intel CPU MMX - 233 is factory default setting.
(4) CPU Cooling Fan Power Connector (CN1 & J14)
Figure 3-22 CN1 & J14: CPU Cooling Fan Power Connector