I've been having a bit of a fiddle with the voltage settings, specifically vcore, to see how low I can take the vcore on my i5 750 at stock speeds (spec in sig). I've noticed that when the vcore is set to auto, it goes all the way down to 0.848V when idle and up to 1.23V ish at load. If I set the vcore manually (currently down to 1.06875V) then the idle voltage never goes below 1.024V. I know its not a massive difference but how come auto can take it lower than a manual setting?
Why does auto vcore have a lower idle vcore than manual settings?
- Thread starter Jon20
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At Load - Full vcore
Idle - Powersave vcore
I didn't explain it properly but I had all of the power saving functions on when I was using auto Vcore and when I set it manually. It just seems odd that with auto Vcore, when speedstep lowered the multi at idle, it lowered the Vcore down to 0.848V. If I manually set the Vcore as low as it can go (1.06875V), when speedstep lowers the multi at idle, it only drops the Vcore down to 1.024V. I would have thought it would have dropped the Vcore to 0.848V like auto does, but it doesn't seem to be the case.
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Mine does the same, But not to that extent. Goes down to about 1.1v with manual settings, 1.05v with auto settings. Thats with an E5300.
Would love it if you could specifically set what multiplier and voltage it goes down to.
Would love it if you could specifically set what multiplier and voltage it goes down to.
Also forgot to mention that this was with llc setting set to standard which supposedly follows the Intel spec. I've also noticed that there is an option called Dynamic VID which I think was only added in the latest F6 Bios for the board. The option is greyed out though so I'm not sure what it does or whether it works with the i5's or whether its just something for the i7 8xx.
If I have my X58 UD5 on optimized defaults in the BIOS it does the exact same thing as this, but for some reason as soon as you manually set vCore it doesn't drop down when the system is idle.
Dynamic VID does the same thing, however you have to first set your vCore to "normal", and then you can select the DVID option, you just set the DVID to however much extra voltage is required for the o/c you're trying to acheive.
So if normal was say 1.1v for your chip, but the overclock you're trying to acheive requires 1.3v, you would set DVID to 0.2v.
That way when the chip is idling, it drops the vCore back down to the normal setting, then when you put a load on the system the vCore goes up to however much extra you set DVID to.
Some people are saying this is a great feature, but I don't personally see the point tbh, it just makes things complicated, and I also imagine it could cause stability issues to.
Dynamic VID does the same thing, however you have to first set your vCore to "normal", and then you can select the DVID option, you just set the DVID to however much extra voltage is required for the o/c you're trying to acheive.
So if normal was say 1.1v for your chip, but the overclock you're trying to acheive requires 1.3v, you would set DVID to 0.2v.
That way when the chip is idling, it drops the vCore back down to the normal setting, then when you put a load on the system the vCore goes up to however much extra you set DVID to.
Some people are saying this is a great feature, but I don't personally see the point tbh, it just makes things complicated, and I also imagine it could cause stability issues to.