Re: Gigabyte G41M-Combo Vcore BIOS setting does not work
I can confirm that this board behaves like this as well. I was about to post about my Vcore being set higher than my pin modded VID when Vcore is set to "Auto". I just did not understand why. I wish that they 'd at least document such features (or do they?). Only after reading your reply was the mystery solved but hey, I guess that's also a way to learn.
I figured the voltage increase depended on the base clock increase so to check and verify the Vcore "Auto" setting, I tried 266 which yielded a voltage of 1.400V and 333 which yielded a voltage of 1.450V. Obviously these values are based on my pin modded VID of 1.325V.
I honestly would like to see what Vcore values would be produced by "Auto" with my E5200 not pin modded at a stock VID of 1.150V. I think I did not try that configuration when I was doing my initial tests, that is overclock the CPU with Vcore set to "Auto". I was focused on setting a specific value which the board didn't do. I am indeed curious to find out what values "Auto" would yield, but I am not willing to reverse my pin mod for that, also removing and reinstalling the cooler is a hassle. I believe "Auto" would provide increased values but they would be much more coarse grained, in bigger steps. Also uncontrolled, which could probably mean higher than necessary (or lower than necessary, but with much less probability).
Obviously, taking the board's Vcore "Auto" behavior into account, there is a risk involved when pin modding a CPU for VID, especially if the mod is for a much higher value than stock. One could argue that using "Normal" is predictable and safe, but a CMOS clear or loading defaults will set Vcore to "Auto". If the mod is too high your CPU may get fried. In my case, voltage maxed out at 1.450V with a high overclock, as mentioned earlier.
So after all, concerning Vcore, the board does not correctly set specific Vcore settings, but does have a nice auto overvoltage feature when base frequency is increased from stock.
I believe that upon overclocking VTT is also increased accordingly when set to "Auto", but there is no corresponding sensor available to verify its actual value.
Another weird occurrence concerning "Auto": DIMM voltage setting. BIOS detects a 1.500V value, and this is the setting that is used when "Normal" is selected. Upon selecting "Auto" however, the voltage used is 1.600V regardless of overclocking. I believe this is within specs, it is just very unnecessary with 1.35V memory.
Originally posted by profJim
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I figured the voltage increase depended on the base clock increase so to check and verify the Vcore "Auto" setting, I tried 266 which yielded a voltage of 1.400V and 333 which yielded a voltage of 1.450V. Obviously these values are based on my pin modded VID of 1.325V.
I honestly would like to see what Vcore values would be produced by "Auto" with my E5200 not pin modded at a stock VID of 1.150V. I think I did not try that configuration when I was doing my initial tests, that is overclock the CPU with Vcore set to "Auto". I was focused on setting a specific value which the board didn't do. I am indeed curious to find out what values "Auto" would yield, but I am not willing to reverse my pin mod for that, also removing and reinstalling the cooler is a hassle. I believe "Auto" would provide increased values but they would be much more coarse grained, in bigger steps. Also uncontrolled, which could probably mean higher than necessary (or lower than necessary, but with much less probability).
Obviously, taking the board's Vcore "Auto" behavior into account, there is a risk involved when pin modding a CPU for VID, especially if the mod is for a much higher value than stock. One could argue that using "Normal" is predictable and safe, but a CMOS clear or loading defaults will set Vcore to "Auto". If the mod is too high your CPU may get fried. In my case, voltage maxed out at 1.450V with a high overclock, as mentioned earlier.
So after all, concerning Vcore, the board does not correctly set specific Vcore settings, but does have a nice auto overvoltage feature when base frequency is increased from stock.
Originally posted by profJim
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Another weird occurrence concerning "Auto": DIMM voltage setting. BIOS detects a 1.500V value, and this is the setting that is used when "Normal" is selected. Upon selecting "Auto" however, the voltage used is 1.600V regardless of overclocking. I believe this is within specs, it is just very unnecessary with 1.35V memory.
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