nForce 790i SLI/Ultra chipset mobos - Reviews/OC/Guides

[Tyke]

Sorry tyke, didnt recall that you were on water :P

Vcore 1.4275 in bios (High for a 45nm, specially since the striker gives out 0.04 more than what BIOS says and 0.05-0.06 more when LLC is enabled)
PLL = Auto
VTT = 1.30 (I heard from many that this is recommended to be kept at 1.20 or if needed high no higher than 1.26)
Memory = 2.00 (If you dont have a fan, I say that this is going to die soon specially since SIIE gives out 0.04 more than what BIOS says
SPP = 1.54 (Now this is insanity, how come you need so much of this?)
MCP = 1.55
GTL's -51, Auto, Auto, Auto

VCore: In the Anandtech review of the S2E he says 1.5 is the max recommended. Under load the vcore is about 1.42 max, sometimes dropping to 1.4. At 450FSB I can only get stable at 1.45, at 1.4275 I can get stable at 445FSB - both with a 9X multiplier. At 4GHz I think 61C max is an OK temperature (this is the max at temp at 1.45V as well). I was getting the same temps on my QX9650 at the same speed, and that is a much cooler chip.

VTT: (I have this at Auto not 1.30) I think 1.36 is the recommended max, but on a GTL_REF of -51mV at 0.63 of reference voltage, 1.28 is the most accurate value you can set. On Auto this is the value I get anyway!

Memory: 1.90V is the rated voltage for this memory at 1600MHz, so only a mild overclock. Some DDR3 memory is rated at 2.00V anyway using the same chips. I do have an open case as well so heat is not a big issue.

SPP: You may be right on this, I have not tried dropping it as my temp is below 60C under load anyway. Again Anandtech says 1.60 max for the NB and SB. I will try and lower it and see what happens.

Thanks for making me think again anyway!!