Core Voltage and Multiplier Jumper Settings for Qube3

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Jumpers are Zero ohm resistors, a small wire soldered across the pads will work OK

 

Core Voltage Jumpers

Core Voltage Jumpers are near the edge of the board, near the 5 Electrolytic Caps close to the RAM sockets.

CV jumpers are numbered: R15, R16, R17, R18, and R19

Most popular CPU core Voltages are 2.0 and 2.2.

 

2.0V: R16, R17, R18, R19 are installed (Normal 450MHz Qube3)

            2.2V: only R16 is installed. (Normal for 300MHz Qube3)

 

Multiplier Jumpers

Multiplier Jumpers are under the CPU, near the middle of the open area of the socket.

R32, R33, and R34

 

            300MHz: only R33 is installed

            450MHz: R32, R33, and R34 are installed

            500MHz: R33 and R34 are installed

            550MHz: R34 only is installed