Voltage Droop

Kirth Gersen

Kirth Gersen

Kirth Gersen

Associate
Joined
4 Nov 2005
Posts
617
N00by question. When you get voltage droop, I am assuming it is when you set the voltage in BIOS, and it reads lower in CPU-Z (as in my case, vcore is set at 1.425 and it reads about 1.36 in CPU-Z). Does this mean that:

a) The additional heat generated is based on the setting of 1.425 volts.
b) The additional heat generated is based on the setting of 1.36 volts.

in other words, with a) are you getting the worst of both worlds - reduced volts, higher heat?

Thanks
 
Lots of folk tend to misunderstand Voltage droop and voltage drop.

Voltage drop = the difference between what you set in the bios and the actual voltage reported.

Voltage droop = the difference between the voltage at idle and the voltage at load.

I don't quite understand what you are getting at with regards to heat. Heat will have no effect on what voltage you set - it works the other way around.
 
First - thanks for clearling that up for me - I was using the wrong terminology. I meant voltage drop.

Regards heat. What I was trying to say, was my understanding is that the higher the voltage, the higher the temps. So if you set 1.425 in BIOS and it reports 1.36 in CPU-Z then what is the subsequent heat generated based on 1.425v or 1.36v. Any clearer?
 
Kirth Gersen said:
So if you set 1.425 in BIOS and it reports 1.36 in CPU-Z then what is the subsequent heat generated based on 1.425v or 1.36v. Any clearer?
Click to expand...

unless theres been a recent update i dont think cpu-z reads the voltage that well so 1.36v might not be right.

i'd go with the 1.425 save any vdroop that may occur on you're mobo.
 
The latest version of CPU-Z (1.41) reads voltage fine, earlier versions did not. The generated heat is that of the actual voltage (the one reported in windows) not the one you set in the bios as the one in the bios has 'dropped' to the actual voltage in windows and will likely 'droop' to a lower voltage when your cpu is put under 100% load. Obviously the higher the load on your cpu the higher the temps. Clockspeed also affects your cpu temp in conjunction with voltage.

Take the voltage in windows as the 'actual' voltage your cpu is using and not the one you set in the bios. You will need to raise your voltage in the bios to compensate for the drop in voltage in windows. So if your cpu requires 1.35v and your reported voltage in windows is like 1.29 then you will need to raise your bios voltage slightly to compensate for the loss of voltage in windows.

This however is irrelevent if you are not overclocking as the voltage drop/droop is actually intended as per intels specification iirc.
 
Last edited:
You must log in or register to reply here.
Back
Top Bottom