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Haswell Overclocking Guide [With Statistics] - Page 1520

post #15191 of 19539
Thread Starter 
Quote:
Originally Posted by Wirerat View Post


vid doesnt drop at idle?

On adaptive? Definitely not. Adaptive does absolutely nothing positive on my mobo, tested it to death.

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post #15192 of 19539
Chart-worthy??

46 Multi 35 Cache


post #15193 of 19539
you can do power saving while overclocking easily. I do that since Sandy Bridge, you just need to use offset vcore (e.g. +0.050v) instead of using fixed value in BIOS. different BIOSes have those options looking slightly different, but it will work fine as long as you use vcore offset coupled with C1E enabled and EIST enabled, I actually use all C-states enabled.

In my Gigabyte Z97 bios I have to select vcore as Normal and then below the option in UEFI gets activated to input offset vcore (e.g. +0.075 for 4.7GHz translating into 1.259v vcore at full throttle), then the PC will run at 4.7GHz when it needs it and clock down to only 800MHz while lowering the vcore voltage to 0.8v at idle, it really saves a lot of money on power bill when rig runs 24/7 like mine does...
post #15194 of 19539
I turned off C3, and all C states. I may turn em on later, but the idle temps are the same.
post #15195 of 19539
I use manual Vcore and frequency/voltage drops normally. I only have to turn on the c states. 0.012v/800Mhz all the time.
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post #15196 of 19539
Same here

override vid, never changes
But vcore is 0.3V on idle as soon as C-states are enabled.
 
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post #15197 of 19539
Thread Starter 
Quote:
Originally Posted by ConnorMcLeod View Post

Same here

override vid, never changes
But vcore is 0.3V on idle as soon as C-states are enabled.

And, it demonstrates that it's possible to have voltage drop on idle without using adaptive mode. That means not having the voltage spike associated with adaptive mode. Because of this, I think it's best if all mobo vendors follow MSI/Gigabyte's lead on this one.

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post #15198 of 19539
Quote:
Originally Posted by koekwau5 View Post

Hi guys,

found some interesting settings in my BIOS yesterday evening. Don't know if its posted allready, if so, pl0x forgive me wink.gif

People here want their CPU overclocked, but also want it to clock down in speed and voltage when it is idle.
It does all of this when BIOS settings are reverted to stock.

You may have noticed once you start entering voltage values the voltage will stay the same and only the speed will decrease.
Changing all the power saving features don't seem to do much, voltage stays the same only speed drops.

I found this on my Asus Maximus VI Extreme motherboard. Probably all other high-end Asus motherboard will have the same feature.
And it is very very easy without trying out hundreds of settings these motherboard have to offer.
So how to overclock your CPU and still make it drop in volts and speed when idle?

1) Go to your BIOS and reset to default settings. Save settings and reboot.
2) Go back to your BIOS.
3) Go to the Extreme Tweaker page.
4) Go to: "Overclock Presets"
5) Load the Gamer OC Profile.

Now go back to the Extreme Tweakers page. You will notice a whole bunch of settings have been configured automatically. But of course there is more to be adjusted!

This is how to configure the Gamer OC BIOS profile without some settings getting adjusted automatically causing the power saving settings to be reverted.

1) Set your AI Tuner to Manual or XMP.
2) In XMP, select your memory profile.
3) In Manual; set your memory speed and timings.
4) Set "CPU Core Ratio" back to "Per Core" and dial in the core speeds. (Changing memory speed makes it hop back to "Sync All Cores" causing the power saving to fail. So revert this to "Per Core"!)
5) Leave all other settings like "PLL Overvoltage" untouched. VRM's are allready set to Extreme, LLC is set to level 8.
6) Set the needed "CPU Voltage" and "Cache Voltage". It will be on override; so typ in the voltage it is stable at. Like mine does 4.7Ghz @ 1.350V, so I set it to 1.350V.
7) Set needed Eventual Input.
8) Set needed Memory voltage.

Save BIOS and have a look at CPU-Z!



You will notice the voltages drop even to a 0.3V cuz the Asus board reduces the Vcore even more on idle than Intel does!
Once the CPU gains some load you will notice the speed increasing and the override voltage kicking in.

Any questions? Ask em here or send me a PM!

my board does the same thing with adaptive voltage infact it goes down to 0.1v read by cpu-z and even my oc software in windows but like everyone should know is that you cant trust monitoring software you need a digital multimeter(DMM).

So even though voltage was going down 0.1v-0.3v in software reading's, Actual voltage read off DMM never went below 0.798v. this is on z87m oc formula also had the asus maximus 6 gene but never tested with DMM but both boards were very similar.
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post #15199 of 19539
Quote:
Originally Posted by Darkwizzie View Post

And, it demonstrates that it's possible to have voltage drop on idle without using adaptive mode. That means not having the voltage spike associated with adaptive mode. Because of this, I think it's best if all mobo vendors follow MSI/Gigabyte's lead on this one.

About msi, have you installed bios version 1.9 ?

Seems it acts weird when enabling cstate >C3, i thought first it was my new 4690K, but i've juste updated my girlfriend's computer after having put my 4670K in it (hers was worst than mine, gonna sell it) and with the new bios and C7 enabled, when stressing with p95, frequency was not at max, i think it was not happening with old bios (1.7 for sure and 1.8).
 
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post #15200 of 19539
Quote:
Originally Posted by feniks View Post

you can do power saving while overclocking easily. I do that since Sandy Bridge, you just need to use offset vcore (e.g. +0.050v) instead of using fixed value in BIOS. different BIOSes have those options looking slightly different, but it will work fine as long as you use vcore offset coupled with C1E enabled and EIST enabled, I actually use all C-states enabled.

In my Gigabyte Z97 bios I have to select vcore as Normal and then below the option in UEFI gets activated to input offset vcore (e.g. +0.075 for 4.7GHz translating into 1.259v vcore at full throttle), then the PC will run at 4.7GHz when it needs it and clock down to only 800MHz while lowering the vcore voltage to 0.8v at idle, it really saves a lot of money on power bill when rig runs 24/7 like mine does...
Quote:
Originally Posted by fateswarm View Post

I use manual Vcore and frequency/voltage drops normally. I only have to turn on the c states. 0.012v/800Mhz all the time.
Quote:
Originally Posted by Darkwizzie View Post

And, it demonstrates that it's possible to have voltage drop on idle without using adaptive mode. That means not having the voltage spike associated with adaptive mode. Because of this, I think it's best if all mobo vendors follow MSI/Gigabyte's lead on this one.
In HWinfo can get on both Vcore and Vring to 0.000V on 800Mhz.
How? Same as Fateswarm.
Manual voltage on both, all C-states, EIST, Turbo enabled, but don't forget Package C state C7 without it Vring won't drop (maybe lower states are fine too but I use the deepest C7 and didn't test the other).



The wattage reading in HWinfo, with all stuff maxed out it does minimum 18W, with frequency drop somewhere around 13-15W, with the C states forced all to enabled, don't use Auto, force them to enabled, it drops to 9W.
Too bad I don't have wall power meter here but anyone can try this out for themselves and see what results you get.
Quote:
Originally Posted by Anusha View Post

i wonder if people who are running these super overclocks of 4.7GHz and up, can actually use the PC without getting their ears deafened due to fan noise. I'm sure people on custom loops have a nice quiet setup but what about people using Closed Loop water cooling units like H100i?
Depends on what voltage, not really clock you run and what cooler and fans, fan profile you use.
Up to 1.3V it's not an issue to keep it relatively quiet even with air cooler. 1000rpm max, single CPU fan.
Edited by JackCY - 9/3/14 at 2:32pm
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