Reply 20 of 53, by Chkcpu
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Hi brunofbrsilva,
The K6-2+ is a Dual voltage CPU, just like the regular K6-2.
Single Voltage CPUs like the original Pentium, the AMD K5, and the IDT Winchip C6, use the same voltage for Vi/o and Vcore. For Dual Voltage CPUs, Vi/o and Vcore are different. This motherboard supports both Single and Dual voltage CPUs but you have to set the JP1 jumpers for Single Voltage mode or Dual Voltage mode yourself, depending on the installed CPU.
In Dual Voltage mode, the board will keep Vi/o at 3.3V while the SW2 setting controls the Vcore.
So use the K6-2 setting for JP1: 1-3 close and 2-4 close (Dual Voltage mode) for your K6-2+.
See page 15 of the manual: https://theretroweb.com/motherboard/manual/52 … 67648865314.pdf
Jan