13
CPU
BUS speed
& multiplier
BF0 BF1 BF2 VID1 VID2 VID3 VID4 J23 J31 JP24 JP25
JP26
^
Intel P54C 75 50MHz x 1.5 OFF OFF OFF OFF ON ON ON 1-2,3-4 ON OFF OFF OFF
Intel P54C 90 60MHz x 1.5 OFF OFF OFF OFF ON ON ON 1-2 OFF OFF OFF OFF
Intel P54C 100 66MHz x 1.5 OFF OFF OFF OFF ON ON ON open OFF OFF OFF OFF
Intel P54C 120 60MHz x 2 ON OFF OFF OFF ON ON ON 1-2 OFF OFF OFF OFF
Intel P54C 133 66MHz x 2 ON OFF OFF OFF ON ON ON open OFF OFF OFF OFF
Intel P54C 150 60MHz x 2.5 ON ON OFF OFF ON ON ON 1-2 OFF OFF OFF OFF
Intel P54C 166 66MHz x 2.5 ON ON OFF OFF ON ON ON open OFF OFF OFF OFF
Intel P54C 200 66MHz x 3 OFF ON OFF OFF ON ON ON open OFF OFF OFF OFF
Intel P55C 166 MMX 66MHz x 2.5 ON ON OFF OFF OFF OFF ON open OFF ON ON ON
Intel P55C 200 MMX 66MHz x 3 OFF ON OFF OFF OFF OFF ON open OFF ON ON ON
Intel P55C 233 MMX 66MHz x 3.5 OFF OFF OFF OFF OFF OFF ON open OFF ON ON ON
AMD K5 90 60MHz x 1.5 OFF OFF OFF ON ON ON ON 1-2 OFF OFF OFF OFF
AMD K5 100 66MHz x 1.5 OFF OFF OFF ON ON ON ON open OFF OFF OFF OFF
AMD K5 120 60MHz x 2 ON OFF OFF ON ON ON ON 1-2 OFF OFF OFF OFF
AMD K5 133 66MHz x 2 ON OFF OFF ON ON ON ON open OFF OFF OFF OFF
AMD K5 166 66MHz x 2.5 ON ON OFF ON ON ON ON open OFF OFF OFF OFF
AMD K6 166 66MHz x 2.5 ON ON OFF ON OFF OFF ON open OFF ON ON ON
AMD K6 200 66MHz x 3 OFF ON OFF ON OFF OFF ON open OFF ON ON ON
AMD K6 233 66MHz x 3.5 OFF OFF OFF OFF OFF ON ON open OFF ON ON ON
IDT C6 150 50MHz x 3 OFF ON OFF ON OFF ON ON 1-2,3-4 ON OFF OFF OFF
IDT C6 180 60MHz x 3 OFF ON OFF ON OFF ON ON 1-2 OFF OFF OFF OFF
Cyrix PR120+ 6x86 50MHz x 2 ON OFF OFF ON OFF ON ON 1-2,3-4 ON OFF OFF OFF
Cyrix PR150+ 6x86 60MHz x 2 ON OFF OFF ON OFF ON ON 1-2 OFF OFF OFF OFF
Cyrix PR166+ 6x86 66MHz x 2 ON OFF OFF ON OFF ON ON open OFF OFF OFF OFF
*Cyrix PR200+ 6x86 75MHz x 2 ON OFF OFF ON OFF ON ON 3-4 OFF OFF OFF OFF
Cyrix PR150+ 6x86L 60MHz x 2 ON OFF OFF OFF OFF OFF ON 1-2 OFF ON ON ON
Cyrix PR166+ 6x86L 66MHz x 2 ON OFF OFF OFF OFF OFF ON open OFF ON ON ON
*Cyrix PR200+ 6x86L 75MHz x 2 ON OFF OFF OFF OFF OFF ON 3-4 OFF ON ON ON
#Cyrix PR166+ 6x86MX 60MHz x 2.5 ON ON OFF ON OFF OFF ON 1-2 OFF ON ON ON
#Cyrix PR166+ 6x86MX 66MHz x 2 ON OFF OFF ON OFF OFF ON open OFF ON ON ON
#Cyrix PR200+ 6x86MX 66MHz x 2.5 ON ON OFF ON OFF OFF ON open OFF ON ON ON
#*Cyrix PR200+ 6x86MX 75MHz x 2 ON OFF OFF ON OFF OFF ON 3-4 OFF ON ON ON
#Cyrix PR233+ 6x86MX 66MHz x 3 OFF ON OFF ON OFF OFF ON open OFF ON ON ON
#*Cyrix PR233+ 6x86MX 75MHz x 2.5 ON ON OFF ON OFF OFF ON 3-4 OFF ON ON ON
ONBOARD
*See disclaimer on page 18. ^ Some boards may not have JP26.
# Check the face of your CPU for BUS speed.
The VID1-VID4 settings for Cyrix 6x86L series will vary. Some of the CPUs in this series are
2.8V, and others are 3.3V. Check the face of the CPU and the CPU Voltage Settings table for the
proper settings for these jumpers.
Jumper Settings by CPU Type