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12
Cyrix 6x86/L/MX Series CPUs Setting
CPU
Frequency Setting (SW1)
ON
Cyrix 6x86/6x86L
ÐPR150
Cyrix 6x86/6x86L
ON
ÐPR166
ON
Cyrix 6x86/6x86L
ÐPR200
ON
Cyrix 6x86MX
ÐPR166
ON
Cyrix 6x86MX
ÐPR200
ON
Cyrix 6x86MX
ÐPR200
ON
Cyrix 6x86MX
ÐPR233
ON
Cyrix 6x86MX
ÐPR233
ON
Cyrix 6x86MX
ÐPR266
Note: 1. There are two kinds of Cyrix MXÐPR200/PR233 CPUs as you
could see on the above list. Make sure the type of your CPU
first from your CPU provider and then set the SW1 and JP30.
2. The voltage setting for 3.52V and 2.8V are the same due to
the Smart Detect CPU Voltage technology.
3. The host bus frequency can not be set to 75 MHz when using
a AGP card.
4. When using SDRAM on Cyrix CPUs, you need to use 8ns or
10ns SDRAMs.
External• : 60MHz
Ratio•
: 2.0x
1 2 3 4 5 6
External• : 66MHz
Ratio•
: 2.0x
1 2 3 4 5 6
External• : 75MHz
Ratio•
: 2.0x
1 2 3 4 5 6
External• : 60MHz
Ratio•
: 2.5x
1 2 3 4 5 6
External• : 66MHz
Ratio•
: 2.5x
1 2 3 4 5 6
External• : 75MHz
Ratio•
: 2.0x
1 2 3 4 5 6
External• : 75MHz
Ratio•
: 2.5x
1 2 3 4 5 6
External• : 66MHz
Ratio•
: 3.0x
1 2 3 4 5 6
External• : 83MHz
Ratio•
: 2.5x
1 2 3 4 5 6
Hardware Setup
Voltage Setting
JP7 JP8 JP9 JP10
(JP30)
JP30
JP30
1
1
3
3
5
5
7
7
9
9
2-3 open 2-3 1-2
11
11
Single
Dual
Voltage
Voltage
3.52V
2.8V
(default)
(default)
JP30
2-3 open 2-3 1-2
1
3
5
7
9
11
Dual Voltage
2.9V
1-2 2-3 2-3 1-2
(default)
(default)
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