And what s the problem?

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I didnt want to make the cpu mobile because of my linux partition.

shock And what's the problem? You CAN change mobile multiplier from Windows. This doesn't mean that you have to run only Windows and nothing else. It means that you can not change multiplier under another OS. Though, there may be programs for that purpose for Linux. If you find any - please, let me know.

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Is that possible to boot at a higher multi with the mod u mentioned?

Probably not. If it works without it - this trick is not needed.

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However,I guess that the problem is that the core is thouroubred A, not B or barton.

Bull's eye.;)

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Maybe with a not superlocked t-bred B or barton 2500+ (1833mhz), i could get an 24x100=2400Mhz (3400+??) or even a 24x112=2688Mhz(3700+????)

Maybe. Maybe not. Who knows? There is a thing called "technology limit". It means that there is a limit for CPU core frequency, defined by technology it is based on. For Tbred-A it is about 1.9-2K of real MHz. My superlocked Tbred-B 2000+ (1662=12.5*133) hangs at 2300, whatever voltage I set to it, though it works just fine at 2241(13.5*166)@1.45V

So, you really think that if there was a possibility to make a 3700+ CPU, AMD could miss it? Heh, don't make me laugh...

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Maybe if i make the cpu mobile(but still booting at 18x) i can get a vcore of 1.9-2.0 V and so more Mhz! What do u think??????

You won't get voltage higher than 1.85V, because desktop mobos have no support for it. No Soft_VID circuits, no mobile voltage pinout tables. Nothing. Nada. Look at fab51 for more information on this topic.

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p.s. Do u know if new semprons can be trasformed into mobiles with the same trick?????? roll

Why not? They are nothing more than already oc'ed Tbreds-B with a new label. You can see this by their CPUId. So, think yourself, are they worth buying? :)