can some1 answer this plz

Sgt Tackleberry · 15 Jan 2011 at 01:50

Hi,

I have my i5 overclocked to 4ghz @1.3v and it's very stable for the last 2months now, i had prime run for 24
hours and it was all good

.I just loaded up CPUID and it was showing my voltage is 1.304v, that is what i set
it in the bios to be, well i just ran prime for 5mins to see how my temps was doing and they was fine but i had
notice my voltage was showing at 1.232v @ fully loaded as soon as i stop prime my voltage went back to 1.304v.
What is going on becasue i don't get it..

my spec is in my sig, my psu is antec true power 650.

Thanks

Sayso · 15 Jan 2011 at 08:17

Voltage droop.

EniGmA1981 · 15 Jan 2011 at 08:31

Not the most in-depth answer there...

Voltage droop or "vdroop" as it's known is where the core voltage drops when the cpu is under heavy load

This is why we stress test an overclock, it may be perfectly stable while idling, but when you load it up with something cpu intensive (something crazy like notepad lol) and the voltage drops a little then it might not be enough to keep it stable and the system will hang...

as long as it's stable, don't worry about it

it's perfectly normal

Sgt Tackleberry · 15 Jan 2011 at 08:39

EniGmA1981 said:
Not the most in-depth answer there...

Voltage droop or "vdroop" as it's known is where the core voltage drops when the cpu is under heavy load

This is why we stress test an overclock, it may be perfectly stable while idling, but when you load it up with something cpu intensive (something crazy like notepad lol) and the voltage drops a little then it might not be enough to keep it stable and the system will hang...

as long as it's stable, don't worry about it it's perfectly normal

Ok cool,
Thank you

PhillyDee · 15 Jan 2011 at 10:19

Also, software readings are inaccurate as well!

EniGmA1981 · 15 Jan 2011 at 10:32

+1

Good point - that's also very true!

OLDPHART · 15 Jan 2011 at 10:50

Yes the good old VD. :rolleyes:

if you have stability probs just up your CPU Vcore a notch till stable.

Sgt Tackleberry · 15 Jan 2011 at 11:16

My system is stable, it's just that I saw the voltage drop and I wasn't sure if that's good or bad.
Thanks guys

the1gooner · 15 Jan 2011 at 12:44

Isn't there an option in the bios to compensate for voltage drop?

twist3d0n3 · 15 Jan 2011 at 13:05

loadline calibration is your friend

Sgt Tackleberry · 15 Jan 2011 at 13:07

twist3d0n3 said:
loadline calibration is your friend

What's that?.

twist3d0n3 · 15 Jan 2011 at 13:11

LLC is an option in the bios that holds Vcore at a average point so to speak; instead of setting a voltage normally, where you set a maximum voltage (that can drop), LLC stops it drooping as much, and in some cases not at all.

it compensates for the droop in voltage to maintain a steady voltage which means when the cpu is put under load, it's less likely to BSoD due to lack of supple voltage.

EirePlane · 15 Jan 2011 at 13:19

OLDPHART said:
Yes the good old VD. if you have stability probs just up your CPU Vcore a notch till stable.

Careful saying that in public.
Could get into a lot of trouble telling other people you have VD