Changing a Multiplying Ratio and Voltage. Part I

Unfortunately, there is not any safe method enabling to change a multiplying ratio of the bus frequency by the hardware at home.

Similar to changes of the bus frequency, you can try to bypass the limit on the voltage supplied to a processor. To do this, you should isolate some processor’s outputs.

A processor informs a motherboard about its power of five voltage outputs VID (Voltage ID): from VID0 to VID4 (outputs B120, A120, A119, B119 and A121 accordingly). The combination of these contacts forms a binary number specifying the voltage that should be supplied on a processor. Each output may be either in the state of logical low or logical high. Thus, the entire voltage spectrum is described – from 1,3 to 3,5 V.

 

Logical Combinations Pointing the Voltage Supplied on a Processor

VID0

B120

VID1

A120

VID2

A119

VID3

B119

VID4

A121

Voltage, V

0 1 1 1 1 1.30
0 1 1 1 0 1.35
0 1 1 0 1 1.40
0 1 1 0 0 1.45
0 1 0 1 1 1.50
0 1 0 1 0 1.55
0 1 0 0 1 1.60
0 1 0 0 0 1.65
0 0 1 1 1 1.70
0 0 1 1 0 1.75
0 0 1 0 1 1.80
0 0 1 0 0 1.85
0 0 0 1 1 1.90
0 0 0 1 0 1.95
0 0 0 0 1 2.00
0 0 0 0 0 2.05
1 1 1 1 0 2.10
1 1 1 0 1 2.20
1 1 1 0 0 2.30
1 1 0 1 1 2.40
1 1 0 1 0 2.50
1 1 0 0 1 2.60
1 1 0 0 0 2.70
1 0 1 1 1 2.80
1 0 1 1 0 2.90
1 0 1 0 1 3.00
1 0 1 0 0 3.10
1 0 0 1 1 3.20
1 0 0 1 0 3.30
1 0 0 0 1 3.40
1 0 0 0 0 3.50