Adaptive vcore?

[nj4ck]

Is anyone of you guys using adaptive vcore for overclocking? I've only been using override mode so far and I faintly remember once reading about some reason not to use adaptive vcore. Since I run fairly high voltage (1.33V), I was thinking about trying it out to reduce power consumption at idle and under light loads, but I don't want to go through several hours of stability testing before asking if there's any obvious reasons not to use it. CPU is a 4670k.

[cesrai]

I think people use overdrive when there trying OCs and then revert back to adaptive once they settled.

[lani100]

Is anyone of you guys using adaptive vcore for overclocking? I've only been using override mode so far and I faintly remember once reading about some reason not to use adaptive vcore. Since I run fairly high voltage (1.33V), I was thinking about trying it out to reduce power consumption at idle and under light loads, but I don't want to go through several hours of stability testing before asking if there's any obvious reasons not to use it. CPU is a 4670k.

I don't use it since it's using way too much voltage I just let it sit at a fixed voltage.

[nj4ck]

I don't use it since it's using way too much voltage I just let it sit at a fixed voltage.

can't you set a max voltage its allowed to go to? Or will it just ignore that and give it more voltage anyway, similar to the issue prime95 causes with haswell?

[lani100]

can't you set a max voltage its allowed to go to? Or will it just ignore that and give it more voltage anyway, similar to the issue prime95 causes with haswell?

Yep exactly what you said there is right!

[nj4ck]

Yep exactly what you said there is right!

Is there a predictable amount of extra voltage that can be given? Like, does it consistently add .02V or something? I'm asking because if I knew the exact amount of extra-vcore it privides I could subtract that from the target voltage (1.33V) and enter, for example, 1.31V. It would then add its .02V making 1.33V. Would that work?

[Majestic]

I use auto voltage for my 4.2ghz. 

[nj4ck]

Just give it a fixed (manual) voltage and disable the power saving states. It works better at reducing heat output at full load where temps actually matter.

How do I disable power saving states? I know I've tried to find this before, its not an obvious option in the bios of my Z87M-Extreme4.

[nj4ck]

I use auto voltage for my 4.2ghz. 

auto doesn't work for me since it won't go over 1.200V. Its either adaptive or override.

[nj4ck]

If you use manual volts, look for and disable these settings if you find them in your BIOS:

 

EIST

C1E

C3

C6

C7

Intel Turbo Boost (If your OC is higher than the Turbo Boost speed, because duh)

Weird, I found all the settings and disabled them all, however my CPU is now running at stock speeds, although the multiplier is set to x42. My idle temps are also 5-6°C higher.

[nj4ck]

Did you check with CPU-Z? Under Core #0 Core speed.

yeah, I did. I think for now I'm just going to go back to the way I had it before since that worked quite well and temps were fine.

[i_build_nanosuits]

Is anyone of you guys using adaptive vcore for overclocking? I've only been using override mode so far and I faintly remember once reading about some reason not to use adaptive vcore. Since I run fairly high voltage (1.33V), I was thinking about trying it out to reduce power consumption at idle and under light loads, but I don't want to go through several hours of stability testing before asking if there's any obvious reasons not to use it. CPU is a 4670k.

do not use adaptative voltages when looking for and testing your overclock settings...but once you know how many volts you want at which clockspeed and all the stress testing is over and you know it's stable ONLY THEN get back to bios and switch all the voltages to adaptative like so:

 

Haswell Low Power Modes

    •Make sure you are on the latest official Bios!

•Cpu ratio mode- Dynamic

•Enhanced Turbo- Enabled

•CPU core voltage mode- Adaptive

•CPU ring voltage mode- Adaptive

•Intel C-state – Enabled

•C1E Support- Enabled

•Package C-state limit - Auto

 

 

 

 

for windows users also make sure you set your minimum processor state to 5%

 

 

Windows7

 

->Control Panel\All Control Panel Items\Power Options\Edit Plan Settings

 

-->Change Advanced Power settings

 

--->Processor Power Management

 

---->Minimmum Processor state

 

-on battery 5%

 

-plugged in 5%

For more info make sure you check @ProKoN haswell overclocking guide here:

http://linustechtips.com/main/topic/41234-intel-haswell-4670k-4770k-overclocking-guide/

 

[nj4ck]

do not use adaptative voltages when looking for and testing your overclock settings...but once you know how many volts you want at which clockspeed and all the stress testing is over and you know it's stable ONLY THEN get back to bios and switch all the voltages to adaptative like so:

my problem is that when I set vcore to adaptive @ 1.31V with an offset of +0.01V, the voltgage under load (according to CPU-Z) jumps to 1.41V. How do I keep it from going above 1.32V?

[i_build_nanosuits]

my problem is that when I set vcore to adaptive @ 1.31V with an offset of +0.01V, the voltgage under load (according to CPU-Z) jumps to 1.41V. How do I keep it from going above 1.32V?

your voltage will do that when you run prime 95 or other stress testing softwares right? but it should not do that when doing normal daily stuff including rendering or gaming.

[ProKoN]

Lol don't disable turbo boost!

Adaptive is preferred for 24 7 operation

its pretty simple just don't stress test using adaptive voltage

[nj4ck]

your voltage will do that when you run prime 95 or other stress testing softwares right? but it should not do that when doing normal daily stuff including rendering or gaming.

yeah you're right, I forgot to stress test with something else than Prime95. Works great otherwise, idle temps are now as low as 23°C.

[Queek]

Is anyone of you guys using adaptive vcore for overclocking? I've only been using override mode so far and I faintly remember once reading about some reason not to use adaptive vcore. Since I run fairly high voltage (1.33V), I was thinking about trying it out to reduce power consumption at idle and under light loads, but I don't want to go through several hours of stability testing before asking if there's any obvious reasons not to use it. CPU is a 4670k.

I use adaptive for my 24/7 overclock, and it's awesome.  I idle at 30°C on my 4690k that has a max multiplier of 46, so it works really well.  

It is important to note that you should not run a stress test on anything other than manual voltage (that's probably where you heard that adaptive is bad).  

Find a stable manual overclock, then plug those settings in as your adaptive overclock.  You may have to tweak your offset slightly to get perfectly stable at idle speeds.  See this thread for more info: http://linustechtips.com/main/topic/294119-troubleshooting-instability-at-idle-while-overclocking-with-adaptive-voltage/

[nj4ck]

I use adaptive for my 24/7 overclock, and it's awesome.  I idle at 30°C on my 4690k that has a max multiplier of 46, so it works really well.  

It is important to note that you should not run a stress test on anything other than manual voltage (that's probably where you heard that adaptive is bad).  

Find a stable manual overclock, then plug those settings in as your adaptive overclock.  You may have to tweak your offset slightly to get perfectly stable at idle speeds.  See this thread for more info: http://linustechtips.com/main/topic/294119-troubleshooting-instability-at-idle-while-overclocking-with-adaptive-voltage/

yeah I've already got it. 1.31V with a +0.01V offset, works great. Prime95 will drive it up to 1.41V but everything else works fine. Idle temps 23°C, equal to ambient 

[Queek]

yeah I've already got it. 1.31V with a +0.01V offset, works great. Prime95 will drive it up to 1.41V but everything else works fine. Idle temps 23°C, equal to ambient 

Ok great.  The idle instability (if it exists) will strike at random.  If you get a bsod while the system isn't taxed, try increasing the offset.  (Just trying to troubleshoot before the problem happens so you know what to do if it happens  ).