Originally Posted by SVTSnake
Okay, found some very interesting and weird things tonight with my system. If you recall, I mentioned back on page 1 I believe about needing 3.1v on the G.Skill LE TCCD to pass Memtest #5&6, and to get the board to boot. Well, tonight after reading over at DFI-Street with 1 of the guys board having issues running test #8, I thought I give it it a try. Well, guess what? 3.1v errored out almost instantly. Than, I tried running SuperPI 1m and it errored always between test 13-16. Remembering OPB's settings and him using 2.6v, I tried that and whala! Memtest passed #8 looping for over 40 minutes. It was always failing in test #8 at 756mb and 9?? meaning it should be my module in bank 4 (correct?). I swapped modules around to see if I could get it fail in bank 2, but the same address failed again. Apon further investigation, I noticed that dimm slot 2 get plenty of blowoff air coming from the XP120 and 120mm fan, but slot 4 gets hardly any. Looking through the XP120, you can see slot 2 through the fins of the heatsink, but not slot 4. If we could use slots 1 & 3, it would get more airflow off the XP120. I don't think the Zalman's would have this problem as their design is radial. For those looking into air cooling, you might want to take a look at either the 7000 or 7700 instead of the XP120. I really do think that your memory slots will get better airflow with them, compared to the XP120.
For those wondering, I was able to swap memory positions just fine without taking off the XP120. I had plenty of room to get the G.Skill LE's out and back in!