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[Q] is my asus x99 A II Overclocking my 6950x CPU ?

RayRedha
Level 7
i have asus x99 a ii , and core i7 6950x
my cpu have turbo boost 2.0 : up to 3500 mhz on all cores
and turbo boost 3.0 : up to 4000 mhz which should affect only 1 core for single threaded performance .

i found an option in my motherboard " asus x99 a ii " called
sync all cores , which turns out to be applying 4000mhz to all cores at the same time not just to one core .
and while rendering i checked and all cores were truly running at 4000mhz .
but in the bios in the info tab the speed still say 3000 mhz !

i got back one more time to the bios and this time i selected " by specific core "
i did a render and all cores were running at 3500mhz except core #9 was running at 4000 mhz ,
went to the bios and in the info tab the speed is still 3000 mhz .

it's obvious what's happening in here
sync all cores pushes all the cores to 4000 mhz
by specific core pushes only 1 core to 4000 mhz
but in both situations the speed in the info tab in the bios still say 3000mhz .
if it was considered as an overclock it should display 4000 mhz in the speed tab i think .
at least when i choosed sync all cores and they all were running at 4000 mhz .

so i am not sure what can i call this ,
is it overclocking of my CPU ?
or is it more like an extra option that let my motherboard apply the turbo boost 3.0 to all my cores instead of 1 core ?

note that when i choose sync all core
i got the option to add a specific number " multiplier " for core #0
but i left it to auto , it decided to be 4000mhz by itself not me .
and i know that if it was an overclocking i have to set it myself

that what got me thinking its might be enabling turbo for all cores , not an overclock ,
especially that in the sync all cores tab it say
target cpu turbo mode frequency : 4000
target cpu @ atx frequency : 4000
it doesn't say target cpu clock speed it said turbo , so that was so confusing

so what do you think ?
is it overclocking my 10 cores " 500 mhz each " that's why i am getting all cores to run at 4000 mhz ?
or is it a special option in the motherboard that let me enable the turbo boost 3.0 " 4000 mhz " to all
cores not just one and it have nothing to do with overclocking ?

peoples were splitted in half
some are saying this is OC , others are saying it's just enabling turbo 3.0 for all cores .
so i couldn't get an obvious answer , i hope its just an option to enable turbo boost 3.0 for all the cores
i don't want to OC .
Thanks .

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Arne_Saknussemm
Level 40
RayRedha wrote:
peoples were splitted in half
some are saying this is OC , others are saying it's just enabling turbo 3.0 for all cores .


So...they are all wrong...because the answer is... both.

The board is applying turbo to all cores for an overclock to 4.0GHz on each core.

😉

Arne Saknussemm wrote:
So...they are all wrong...because the answer is... both.

The board is applying turbo to all cores for an overclock to 4.0GHz on each core.

😉


oh , that's good to know ,
thank you for taking the time to read all of this , i appreciate it so much .
so for now , what would you recommend :

keeping all the cores at 4000 MHz ?
keeping all the cores at 3800/3700 MHz ?
Keeping all the cores at the default 3500 Mhz and core #6 at 4000 MHz ?
or just keeping all cores at 3500 Mhz ?

the default setting in my bios on the first boot was
by specific core : all cores runs at 3500 Mhz and core number #6 at 4000 Mhz .

note :
i heard OC shorte
n the lifespan of the CPU
and this CPU cost me about +2000 USD W/tax ,
and i am not planning to upgrade before 7-8 years at least .
if the mobo failed in the next few years i'll buy a new one ,
but i am planning to keep the cpu for a long time .

note :
i remember seeing an option in my bios about min cpu speed
but i can't seem to find it again , because i would like to lower it down maybe to 900
mine now set to 1200 mhz which seem a bit high while idle and doing nothing
can you remind me where is that option located at ? or should i post a new thread ?

thanks a lot .

Arne_Saknussemm
Level 40
If you want maximum life out of your CPU then I would leave all cores to turbo up to 3.5GHz only. And keep speedstep enabled to allow the CPU to downclock when idle.

1200MHz is pretty standard downclock....i'm not sure if lowering that will really help....and I'm not sure where to set that TBH.:o

Arne Saknussemm wrote:
If you want maximum life out of your CPU then I would leave all cores to turbo up to 3.5GHz only. And keep speedstep enabled to allow the CPU to downclock when idle.

1200MHz is pretty standard downclock....i'm not sure if lowering that will really help....and I'm not sure where to set that TBH.:o


thanks a lot you've been very helpful Arne .
my 4790k min clock is 900 mhz so i was thinking of doing the same here
but its ok i will leave it like that ,

i wanted to give you best answer or reputation
or anything to explain how grateful i am .
but looks like there isn't any options to do so in this fourm ,

one last thing
i know each CPU is different but approximately
if all cores runs at 4000 mhz ,
if all cores runs at 3700 mhz ,
if all cores run at stock ,
what is the lifespan i can expect in each situation ?

and since turbo 3.0 is a new technology that allows overclocking of only 1 core
well that's mean that specific core will die first , since its not like the other cores
and its running 500mhz faster , i am talking about in the long run
so it's a bit confusing there .

Arne_Saknussemm
Level 40
no probs...rep is broken pretty much on this forum...:o

The thing is no one can say for sure how long the CPU will last. It might die tomorrow at stock... it might last for years overclocked...all a bit of a lottery...however in general lower voltage/current and lower temps are going to give you the best chance for longer life...

The new "feature" of tuboing best core is an unknown as well. Sure might lead that core to die first...but marketing is marketing...who knows.

I saw above, that when all cores were at 4.0GHz the CPU was using 1.2+ volts....for stock closer to 1.0 v.

If you want to OC the CPU with some peace of mind, you can purchase the Intel Performance Tuning Protection Plan....pretty cheap for peace of mind while warranty lasts....but if you intend to keep CPU for a number of years the best bet you have is stock with good cooling....