@ Wolf2000me :
Do you still have your L12 hard mod? I'm just wondering if it is working properly on my mobo, since there should be some difference between 2x512MB dual and 1x512MB single - unfortunately the highest stable FSB with stock bios was 222Mhz (225Mhz I could run all the benchmarks, but got some Prime95 Blend errors quite quickly) no matter how many mem sticks I used, no matter if single or dual. On my dead Abit NF7 v2.0 there had been some difference - about 10Mhz higher with 1x512MB single.
I didn't menage to check that while using Merlin's bios before I went to Germany.
Btw. I have L12 with one copper wire, as shown here :
http://www.geocities.com/trats102002/nf7sFsbsense.html
I'm thinking about removing the hard L12 to see if it changes anything - I'm going back to Polnad in 2-3 weeks for a few days.