I have a crazy idea.... AMD FX-series processors

[RedShoeRider]

....Ok, correct me if I'm wrong with this: The FX series of processor cores and the Opteron 2xx cores are the same. The difference between the families is that the FX series does not have the multipliers locked but has the HT path cut, which disables the chip from doing SMP. The Opteron family does have locked multipliers, but does not have the HT path cut.

Assuming this to be true, the FX series of processor could be made SMP capable by re-enabiling the HT paths, much like the unlocking of the old Athlon series with the L1 jumper trick.

Assuming this to be true, AMD would have likely just cut bridges on the die in order to either enable or disable functionality on the chip. So, if certain bridges were reconnected, it would allow an FX-series chip to run in SMP.

Has anyone ever investigated this possibility? Is it possible to get to the die without destroying it?

[andamus]

Nope, they use different sockets :

Athlon FX use sockets 939/AM2 (apart FX51 that use socket 940) while opterons use socket 940/F
Athlon FX 70/72/74 are on socket F and they already have smp support