It is true that DFI has problem to pair with value ram but this is fixed after the latest official bios released.

As for the D43 ram, I myself once paired the D43 with my DFI NF4 Ultra-D. The only problem is the divider. It wont work with any divider. But it still overclocked very well to 260FSB with a ratio of 1:1.

hehehe...I myself had the 4 LED issue before. I managed to make it running by using Safe Boot jumper after clearing the cmos. I was tweaking the RAM by playing with the timings and that led me to the 4 LED issue. I have no more problem with this mobo since i have found a stable speed and the best timings.