User Guide
20
75KAV/75KAV-X
2-6 CPU EXTERNAL FREQUENCY SETTING
33.3MHz
ON
ON
ON
12345
OFF
OFF
OFF
100MHz
(default)
200MHz
ON
ON
ON
12345
OFF
OFF
OFF
105MHz 35.0MHz
210MHz
220MHz
224MHz
240MHz
230MHz
ON
ON
ON
ON
12345
OFF
OFF
110MHz 36.7MHz
ON
ON
ON
ON
12345
OFF
OFF
112MHz 37.3MHz
ON
ON
ON
ON
12345
OFF
OFF
115MHz
38.3MHz
ON
ON
ON
ON
ON
12345
OFF
120MHz 40.0MHz
ON
ON
12345
OFF
OFF
OFF
OFF
124MHz
31.0MHz
248MHz
ON
ON
ON
12345
OFF
OFF
OFF
140MHz
35.0MHz 280MHz
ON
ON
12345
OFF
OFF
OFF
OFF
150MHz 37.5MHz
300MHz
ON
12345
OFF
OFF
OFF
OFF
OFF
133.3MHz
33.3MHz
266MHz
ON
ON
ON
ON
ON
12345
OFF
103MHz 34.3MHz
206MHz
SW1 CPU EXTERNAL CLOCK PCI CLOCK FSB CLOCK
IMPORTANT:
• You may figure out the correct processor type by processor’s OPN
(Ordering Part Numbers), select correct CPU external frequency is
key to ensure reliable operation.
• Incorrect CPU external frequency or overclocking are not guaranteed
to be stable, we strongly recommended to leave “SW1” at default
setting or legal operation.