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That's what I was looking for!CPU settings are covered at the top of page three of this discussion.
I have tried CPU voltages up to 1.600V. I don't like to run there. I have tried all combinations of HTT and CPU-NB speeds. I have tried many CPU-NB voltages. Since I have the Black Edition, I have been using the CPU multiplier only for overclocking. Things go great up to and including 3.6Ghz. I can run there at stock voltage and am stable all the way down to 1.25V. I have not been able to reach stability at 3.7Ghz or above.
CPU-Z always show exactly the voltage entered in BIOS. All HTT and CPU-NB changes also appear to follow in CPU-Z.
I have tried to follow Dolk's guide on CPU-NB frequency and voltage. Like I said, nothing seems to work above 3.6Ghz. I think that if I knew what was causing the problem, I would be able to figure this out. It seems strange that to overclock these CPU's, one must also over/underclock the HTT and CPU-NB. Also, I have heard that on some systems there are overclocking problems if the RAM is running at 3:8 ratio as mine is. So, my instability problem is one of the following:
1. Need more CPU Volts
2. Need to Overclock HTT
3. Need to underclock HTT
4. Need to Overclock CPU-NB
5. Need to Underclock CPU-NB
6. Need to add voltage to CPU-NB if overclocked.
7. My motherboard has this 3:8 Ram ratio instability and I need to try running at 800Mhz or 1:2 ratio.
8. I have reached this mysterious heat wall at ~40 degrees C.