Voltage Mod on Epox 8HDA+ Athlon 64 Board
Vcore and Vdimm mod.
Here’s the voltage mods for the Epox 8HDA+.
Firstly, for Vcore, locate the IC chip shown in the picture near the socket.
Its the Fairchild 5098MTC chip. Connect a 5K ohms variable resistor to pin 24,
the last pin on the chip. The other end of the VR is to be connected to a grounded
spot. Start with maximum resistance and tune downwards to increase Vcore.
For Memory Voltage, locate IC chip RT9202 as shown. Connect a 20K VR from pin
6 to ground. Set it to maximum resistance and slowly tune down to increase voltage.
Take note that there is virtually no cap on the VDimm here. You can go as high
as well over 4v as it is derived from the 5V line instead of the usual 3.3v