Here is my template for Q6600 at 3.861 (429*9) for reference.
I've tested it out to 60 IBT stable and 33hrs p95 stable.
LLC - ON
Cpu Vcore - 1.4875
PLL - 1.5V
Cpu Ref- 0.992 (0.667 of Cpu Vcore for 65nm quads)
MCH
Mch Core - 1.5V
Reference - 1.017V (0.667 - 0.691 of Mch Core for 65nm quads.)
MCH / Dram - 0.9V (make that 0.5 of Dram Voltage )
everything else was on auto.
Also this should be of help to you especially:
DRAM Termination
Channel A Ref
Channel B Ref
I'm guessing that your MCH Core might be the problem.
I've tested it out to 60 IBT stable and 33hrs p95 stable.
LLC - ON
Cpu Vcore - 1.4875
PLL - 1.5V
Cpu Ref- 0.992 (0.667 of Cpu Vcore for 65nm quads)
MCH
Mch Core - 1.5V
Reference - 1.017V (0.667 - 0.691 of Mch Core for 65nm quads.)
MCH / Dram - 0.9V (make that 0.5 of Dram Voltage )
everything else was on auto.
Also this should be of help to you especially:
DRAM Termination
Channel A Ref
Channel B Ref
I'm guessing that your MCH Core might be the problem.