Asrock 939Dual-SATA2 Vmods

[persivore]

These are some of the existing mods for the board:
Vcore 1
Vcore 2
Vdimm

These a few new mods which I've found, which should release some better clocks from the board:

Vdroop - remove the circled resistor, and replace it with a 10k variable resistor set to 1k. Adjust until there is no droop.
Vsb - Southbridge voltage supply
Vtt - The board can produce a very unstable Vtt supply under some conditions. It should be 50% of Vdimm. Offsetting it slightly high or low can help to correct for the unstable voltage, and could improve RAM clocks slightly.
Vldt - Htt voltage supply - should help with Htt and possibly CPU overclocking.
Vdd - Northbridge voltage supply - Increasing Vdd should help with Htt overclocks.
Vagp - Might help increase the speed that the AGP bus can run at and might increase the Htt overclock, as on some intel based boards. I don't think that it will have much effect on this board tho personally.
Vpci-e - Same as Vagp

Vdroop
Vsb, Vtt and Vsb read point
Vldt, Vdd and Vagp mods
Vldt and Vdd read points
Vagp read point
Vpci-e and Vtt read point
Vcore read point

These are a couple of mods which I haven't fully tested yet, and should be done with caution until I have chance to fully test them. I think that the one in yellow is probably Vcca (PLL supply voltage for the CPU). I have no idea what the other mod controls, and doesn't seem to effect the overclock in any way.

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