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PM-9800 MAINBOARD MANUAL
9
CPU CONFIGURATION JUMPERS
CYRIX
®
IBM
®
6x86
(3.5V)
CYRIX
®
IBM
®
6x86 (L & MX)
AMD™
K5
(3.5V)
CPU TYPE CPU CLOCK SW1 SW2 SW3
PR# MHz 1 2 3 1 2 3 1 2 3
SW1, SW2 & SW3 CPU Configuration Jumpers
75
90
100
120
133
150
166
180
200
166
200
233
100
120
133
133
133
75
100
90
100
150
166
166
200
233
200
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
PR120+
PR150+
PR166+
PR166+L
PR166MX
PR75
PR100
PR120
PR133
PR150
PR166
PR2-166
PR2-200
PR2-233
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
ON
ON
ON
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
INTEL
®
PENTIUM
®
P54C
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
OFF
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
OFF
N/A
INTEL
®
PENTIUM
®
MMX™
P55C
AMD™
K6
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
ON
OFF
OFF
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
ON
N/A MEANS THAT THE PARTICULAR JUMPER HAS NO EFFECT ON THE SETTING. IT CAN BE SET EITHER
ON “ON” OR “OFF.”
THE CYRIX 6X86 PROCESSORS CAN HAVE A SETTING OF EITHER 3.3V OR 3.5V, DEPENDING ON THE
MODEL OF THE PROCESSOR. CHECK THE PROCESSOR’S LABEL FOR MORE DETAILS.
THE CYRIX 6X86MX PROCESSOR MAY HAVE DIFFERENT CLOCK MULTIPLIER SETTINGS, DEPENDING
ON THE MODEL OF THE PROCESSOR. CHECK THE PROCESSOR’S LABEL FOR MORE DETAILS.
IDT WinChip™