Interactive AMD Athlon 64 Socket 939 CPU Pinmod guide v1.0

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dipdude

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Interactive AMD Athlon 64 Socket 939 CPU Pinmod guide v1.0

Assistance to the interactive AMD Socket 939 CPU Pinmod guide

The introduction ...
In order to obtain a good CPU overclock result, usually an increase of the Vcore (CPU voltage) is necessary.

One should naturally always watch the CPU temperature and improve the cooling if necessary.

Since the Vcore cannot be changed however with all Motherboards, or often only very slightly,there's now the new Pinmod guide for current AMD Socket 939 processors.

The new interactive Socket 939 guide calculates not only the Vcore pins, but also which pins on the basis of the original Vcore really have to be changed for the Vcore increase. If no connections are indicated, this CPU voltage is not adjustable due to the original CPU voltage.

The Pin-Mod method with the wire loop under the CPU ...

For the Socket 939 Vcore Pinmod one selects the original Vcore of the CPU in the field "Original CPU Vcore selection" which AMD gave the processor (check it briefly in the BIOS, or in the interactive Athlon 64 CPU ID guide).

Hereby one facilitates oneself the work substantially, since one only must connect the pins, which are actually necessary. Then select the desired Vcore in the field "Select the desired Vcore", which one would like to get after the modification.

Now there're already shown all pins, which one have to change for this Vcore.
To connect the pins under the CPU take several fine wires (e.g. an individual cord inside of a HDD or a floppy cable), loop this wire once around those two pins, twist each ends and pinches off the unnecessary wire.

Here's a small screen sequence for the modification ...
Twist the wire once around the two pins:


Cut the wire a little bit and twine it carefully (e.g. with a tweezers):


Pinch off the unnecessary wire:


Et voila, that was it.
And if things doesn't work out in the first one, drink a coffee less and simply try it again.
Important is only that the correct pins are connected at the end - each error could have bad consequences !

For the complete guide visit ocinside.de
 
nice link dip ....

but as the interactive guide say that we can assign a different Vcore to any processor but still the max in the guide is 1.55 .... if i mod my CPU to 1.55 then if i set Vcore from my bios to 1.40 it will be 1.55 :-/
 
Check the link it says depending on mobo and voltage regulator you can push it too 1.75 to 1.9 V
As already mentioned briefly in the interactive Pinmod guide, if necessary still another meaningful combination of the new CPU voltage and the BIOS can be done after the modification.

Because some Motherboards permit a voltage correction and/or the Vsen setting of the voltage regulator IC in the BIOS.

The Mainboard manufacturer e.g. EPoX often offers the BIOS option +0.1, +0.2 or even +0.35 V.

Thus the CPU will have a voltage of e.g. 1.75 V (or even 1.90 V) after the Vcore modification to 1.55 V, if one increase the voltage correction in the BIOS to +0.2 or +0,35 V.

But a direct Vcore setting is no voltage correction, but likewise a change of the VID !

If there's a fixed voltage adjustment of e.g. 1.400 V in the BIOS, the highest Vcore "produced" with the Pinmod is maximally 1,550 V by the 5 VID pins (VID0 - VID4).
 
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