Hardwired, if your preference is still the fixed resistor route, go ahead and install the 2.7 per the x-bits link on the core. Since you have improved your cooling with the added hs. Did you remove the shim? Finish the core side first to your satifaction. You really need to measure the core voltage with a DVM. With my air cooling mods and running the core voltage at 1.80volts, I can run 420. Then if you desire, install the ramsinks on the memory.(They may not allow you much in the way of a speed increase, but they should help the cooling of the memory, and that`s always good! Then see if you can run your memory at say 345 stable with no artifacts in the 3dmark03 bench. If you can, then shoot for 350 and try again. With the added memory volt mods, you will be lucky to get much more than 370. Without using the variable pots on the memory mods, I am a little hesitant on advising you which exact size fixed resistors to use. The memory mods are the ones you have to be very careful with to avoid a dead card. Like I posted earlier, the best I could run stable with NO artifacts was 420/365, with all the mods, and ambient temps in the house around 75 degrees. After you complete the core side and the ramsink addons, increase your mem side to 345-350 and run the 03 benchmark and then post back the results, and if you still desire to do the memory volt mods, we will go from their. Good Luck!