I did a answer in here some time ago.......
Hello! How to undervolt asus boards....
there is a difference between the Desktop and the Mobile Mainboards in interpreting the
V-Core they should give to the CPU.
As you can see in the Voltages table from (at the end of the
Mobileboards(laptop/notebooks as example) have a spectrum of voltages from 0.925Volts
till 2Volts - the Desktopboards like ours only make voltages from 1.1V till 1.85V (but
in lower steps)
Both Mobile and Desktops have the same amount of steps and thats the Point *g*: Our
Mainboard thinks that the CPU wants 1,575V, the Mobile thinks that the CPU wants the
1.45V (see the voltages table)
The Problem is, that we cannot move the voltages under the minimum with our Board. My
A7n8X only allows exactly 11 Steps over the original voltage (=>1,575V-1.825V).
One way to sink the Voltage is to make the mainboard believe it has a CPU with a lower
voltage on it.
if you would like to have 1.45 Volts on a Desktop, you would have 1.275 on a Mobile.
--> Code on the Pins Closed|Opened|Closed|Opened|Opened Or like in the Table: C:C::
if you would like to have 1.45 Volts on a Mobile, you would have 1.575 on a Desktop.
--> Code on the Pins Opened|Closed|Closed|Closed|Closed| Or like in the Table: :CCCC
The Opened and Closed:
Every CPU is Produced without the Knowledge how fast it is. They are tested and then
AMD locks a special Speed/Voltage/Frontsidebus into the CPU. So every Mainboard can
read the Parameters then it sets the attitudes to have a good working cpu.
The Parameters are set through bridges on the upper CPU side. L11 showes the Voltage to
There is our Bridge.
You can read the Code (the way the pins are closed or not and then you should compare
it with the table to see how to understand the code. (... C:C:: -> Mobile 1.45V/Desktop
How we can outwit the Board
The safest Way to change the Code is to close some Pins, because we can remove it
easily. Without altering the CPU in any way. This can be made with connecting pins on
1) - either on the sockel with putting a little wire in the two right holes
2) or with connecting the same to Pins under the sockel on the lower side of the
3) (to the completeness and to the understanding) there is a third way: you also can
connect the Pins on the CPU (Bridge L11) Because that are the same Pins, only on the
If you want to open a Pin(/Part of the L11 bridge) you need a a pointy object like a
sewing needle to cut it. I made this - but you should know that if you want to close it
later with another method than the wiremethods on the upper/lower side on the mainboard
you have to make it work with silver varnish (it's a very very small work to do)
I first made it with a pencil, it worked but only a short time, then i got freezes and
i had to do the wiremethod
The right Pins:
Its a German site, but you don't have to read much *g*
1) First select the Method you want to use:
Unterseite CPU means lower CPU side
unterseite Platine means lower side of the sockel on the other side of the Mainboard
Oberseite Sockel means upper side of the sockel
2) Then switch the "Vcore auswählen" (= voltage selecting) to 1.45V (or any other
3) You can see the Pins to connect.
!!!!!! but you only connect the right pins. you don't disconnect them. you have to cut the others on the upper cpu side (L11) to make it work. (-->Compare it with the Voltages table to see what to do)
I'm German, not English - If you don't understand anything or if there are any other Questions or Uncertainties - ask again