Gigabyte Z97 UD5H running i7 4790k at 1.46 V on boot?

szf · Jul 12, 2014

I recently finished putting together my first build with an i7 4790k and Gigabyte z97 UD5H mobo. I booted up for the first time and got took a look at the bios settings. The CPU voltage was about 1.46 V and the processor was running at 4.4 GHz.

I don't know too much about overclocking at this point, but as far as I have read so far, 1.46 V is dangerous territory. I got nervous and turned off the computer before I proceeded further.

Could anyone please suggest to me the best option of proceeding? I presume this is a BIOS issue but I am not sure if it is better to adjust the voltage manually, go forward and instal windows, or figure out how to update the bios. what do?

i7Baby · Jul 12, 2014

I've seen them go up to 1.7V. And also at 1.15V - where I think it should be on idle.

Go into bios/uefi and decrease it. And into Windows and use Balanced power setting.

geofelt · Jul 12, 2014

4.4 is the turbo speed for the 4790K.
That is what I get, but at 1.208v.

Check your bios options carefully, I suspect some sort of overclocking is being applied.
Start with resetting all to the defaults. There may be something called optimized defaults.

You could check to see if there is a bios update available. Normally you would not ever update the bios on a running pc.
But, since this is new, I would go ahead and update.
Proper oc operation is a typical reason for early bios updates.

1.44 is not by itself dangerous, assuming adequate cooling. But, I would not use that 24/7.

szf · Jul 13, 2014

Thanks for the help. I updated the BIOS with qflash and now everything is well behaved.

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