looks like i am running same components as hellos. suggest you try
cpu interface optimal, memory expert, auto, 7,3,3,2.5 agp freq 66, cpuv 1.8 or 1.85,
vdimm 2.77, agp 1.5v, . my locked 1600+palomino aroia stepping is currently at 10.5x175, 1.85v,
cpu temp 33C, system 29C, ambient 75F, which is obviously low due to way epox reads temps. also, put a fan on northbridge. lots of other posts on this subject, including one by me with a quick cheap fix. noticeable improvement. finally, reseat your heatsink. if you are running temps that high, you may not be seated properly. before i watercooled, i never got that high.
edit: adjusted temps, read the manual on which dimms to install mem. i'm in 1&3 for dual.