12
Hardware Setup
Cyrix 6x86/L/MX Series CPUs Setting
Cyrix 6x86/6x86L
ÐPR150
Cyrix 6x86/6x86L
ÐPR166
Cyrix 6x86/6x86L
ÐPR200
Cyrix 6x86MX
ÐPR166
Cyrix 6x86MX
ÐPR200
Cyrix 6x86MX
ÐPR233
Cyrix 6x86MX
ÐPR233
External• : 60MHz
Ratio•
: 2.0x
CPU
Frequency Setting (SW1)
Voltage Setting
(JP30)
External• : 66MHz
Ratio•
: 2.0x
External• : 75MHz
Ratio•
: 2.0x
Single
Voltage
3.52V
(default)
Dual
Voltage
2.8V
(default)
External• : 60MHz
Ratio•
: 2.5x
External• : 66MHz
Ratio•
: 2.5x
External• : 75MHz
Ratio•
: 2.5x
External• : 66MHz
Ratio•
: 3.0x
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
Cyrix 6x86MX
ÐPR200
External• : 75MHz
Ratio•
: 2.0x
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
Cyrix 6x86MX
ÐPR266
External• : 83MHz
Ratio•
: 2.5x
1 2 3 4 5 6
ON
Dual Voltage
2.9V
1
3
5
7
9
11
JP30
1
3
5
7
9
11
JP30
1
3
5
7
9
11
JP30
JP7 JP8 JP9 JP10
2-3 open 2-3
1-2
(default)
2-3 open 2-3
1-2
(default)
1-2
2-3
2-3
1-2
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.
