Okay here they are (From 398 x 7 attempt )
Do you think if I up VCore to say 3 notches above 1.4, it may take 398 x 7 ?
( Although it would defeat the original purpose to lower temps )
I have trouble posting at 398.. I can post 390x8 and 390x9, but I can't post 391-400fsb.. I post at 401fsb.. Have you tried 401x8 @1.3375v?
Also so you know, when you lower your multi you are raising your NBfreq. Formula for this is
default multi/ new multi x fsb
If you are running 398x9 your NB freq. is at 398Mhz.. But if you run 398x7 your NB freq. is at 512Mhz.. 9/7 x 398 = 512Mhz.... Change your multi to 8x and try again.. 9/8 x 400 =450Mhz NB.. That may stable you out a bit..