GA-586ATV
3-4
Open
For normal operation.
Close
For hardware reset system.
t
J11: Turbo Switch
Pin No.
Function
Close
For low speed (Non-cache).
Open
For high speed.
t
J12: Turbo LED Connector
Pin No.
Function
1
LED anode (+).
2
LED cathode (-).
t
S1-1,2: CPU BUS CLOCK
MHz
1
2
75
OFF
OFF
66
OFF
ON
60
ON
OFF
50
ON
ON
t
S1-3,4: CPU INT. / EXT. CLOCK RATIO
¡ ]
For REV.3x
¡ ^
RATIO
3
4
x 1.5 or x 3.5
OFF
OFF
x 2
OFF
ON
x 2.5
ON
ON
x 3
ON
OFF
t
S1-3, 4, 6: CPU INT. / EXT. CLOCK RATIO
¡ ]
For REV.4x
¡ ^
RATIO
3
4
6
x 1.5 or x 3.5
OFF
OFF
OFF
x 2
OFF
ON
OFF
x 2.5
ON
ON
OFF
x 3
ON
OFF
OFF
x 5.5
OFF
OFF
ON
x 4
OFF
ON
ON
x 4.5
ON
ON
ON
x 5
ON
OFF
ON
t
S1-5: AMD K6 3.2V CPU support
CPU
5
AMD K6 3.2V CPU
OFF
Intel & Cyrix & AMD K5, K6 (2.9V)
ON
t
CN1-4,6,7,J3 I/O Ports Connector
