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Cathar · 09-24-2002, 11:40 PM

Yes Les,

The C/W non-linearity wasn't lost on me.

Using the ComputerNerd wattage calculator:

1.6GHz/1.77v = 68W
1.925GHz/2.15v = 115W

CPU rise above water temps at full load:

68W = +6C
115W = +18C

Unfortunately the A7V333 doesn't allow me to select sub-1.75v voltages. I know I can run this CPU at 500MHz/1.25v, and I'd love to see if the mobo started reporting CPU temps below ambient.

Could it be that the temperatures reported are "compressed"? Or could it be that the correct temperature is the result of adding 10C to whatever's reported? That'd make more sense assuming the gradient of the thermal probe is accurate. Or could it be a bit of both?

The A7V333 also reports the in-socket diode temperature and it typically sits at 10C higher than the CPU diode. Of course none of this stuff is calibrated properly, but it is good enough to pick up differences.

09-24-2002, 11:40 PM	#28
Cathar Thermophile Join Date: Sep 2002 Location: Melbourne, Australia Posts: 2,538	Yes Les, The C/W non-linearity wasn't lost on me. Using the ComputerNerd wattage calculator: 1.6GHz/1.77v = 68W 1.925GHz/2.15v = 115W CPU rise above water temps at full load: 68W = +6C 115W = +18C Unfortunately the A7V333 doesn't allow me to select sub-1.75v voltages. I know I can run this CPU at 500MHz/1.25v, and I'd love to see if the mobo started reporting CPU temps below ambient. Could it be that the temperatures reported are "compressed"? Or could it be that the correct temperature is the result of adding 10C to whatever's reported? That'd make more sense assuming the gradient of the thermal probe is accurate. Or could it be a bit of both? The A7V333 also reports the in-socket diode temperature and it typically sits at 10C higher than the CPU diode. Of course none of this stuff is calibrated properly, but it is good enough to pick up differences.