Tag Archives: fixed value

When Overclocking: Use offset voltage over fixed voltage

Today i decided to get back to powersavings and changed my fixed cpu core voltage to an offset value. The reason is pretty simple: I want the voltage to reflect the current core speed or in other words, to supply the CPU with only the amount of voltage it actually needs. On the one hand to give the CPU a break when possible, when no performance is needed and maybe extend its life time and on the other hand to save energy. It’s there, you can use it! Don’t fear it!

 

Dynamic Vcore / CPU core voltage
Dynamic Vcore / CPU core voltage
Fixed Vcore / CPU core voltage
Fixed Vcore / CPU core voltage

 

I won’t say: Go Green! – Go Offset voltage!

Powersavings were introduced back in the 90 at the end of the last century and there is no reason anymore to not make use of it, even when overclocking. These days SpeedStep or PowerNow technology could cause several stability problems but today we are facing software and hardware which has improved significantly. Go Offset! Time to make a change, time to make a cut here and use it. Only when using offset mode the processor can apply its power saving steps ontop of it. Maybe in the future they will be able to scale.

 

Apply Speed Step Voltage onto the Offset Voltage
Apply Speed Step Voltage onto the Offset Voltage

 

It’s nothing of a big deal

Just go into your BIOS and switch from fixed value to offset mode. You just have to do the math. Get the base voltage of your CPU and add that extra voltage you already applied in your fixed voltage and add the difference as offset voltage.

 

Offset Tweaking Example
My base voltage is 1.040
My target / overclocking voltage is 1.280
So i provide an offset voltage of 0.24

 

Setting Offset Mode and Offset Voltage in the BIOS
Setting Offset Mode and Offset Voltage in the BIOS