MaximusIV-Extreme Thread

[Splave]

Ive been benching @ 1.68v 5.6ghz on ambient air cooling and chip is still as fast as the day I got it If it burns up rma it

[LardArse]

Here is a double edged sword, tip for maximizing bclk/yet the wrong setting can produce CPU sensitivities to '00' at resets etc :



First set Skew driving voltage to 1.04v, set bclk skew to 0 , rest of skew to auto and start pushing bclk to find limit.
next set Skew driving voltage to 1.04v, set bclk skew to -8 , rest of skew to auto and start pushing bclk to find limit.
next set Skew driving voltage to 1.04v, set bclk skew to -12 , rest of skew to auto and start pushing bclk to find limit.
if bclk is increasing going to -12 then slowly lower skew driving voltage from 1.04v to try to max bclk again.

for reducing bclk First set bclk skew to 0 , set Skew driving voltage to 1.04v,rest of skew to auto and start rewducing bclk to find limit.
next set bclk skew to +12 , set Skew driving voltage to 1.04v,rest of skew to auto and start rewducing bclk to find limit.
if bclk is redusing going to +12 then slowly increase skew driving voltage from 1.04v to try to reduce bclk again.

[Dumo]

Here is a double edged sword, tip for maximizing bclk/yet the wrong setting can produce CPU sensitivities to '00' at resets etc :

Thanks for info..got a lot of "00" playing with 1303, good thing it wasn't the perpetual "00"

[l0ud_sil3nc3]

Here is a double edged sword, tip for maximizing bclk/yet the wrong setting can produce CPU sensitivities to '00' at resets etc :



First set Skew driving voltage to 1.04v, set bclk skew to 0 , rest of skew to auto and start pushing bclk to find limit.
next set Skew driving voltage to 1.04v, set bclk skew to -8 , rest of skew to auto and start pushing bclk to find limit.
next set Skew driving voltage to 1.04v, set bclk skew to -12 , rest of skew to auto and start pushing bclk to find limit.
if bclk is increasing going to -12 then slowly lower skew driving voltage from 1.04v to try to max bclk again.

for reducing bclk First set bclk skew to 0 , set Skew driving voltage to 1.04v,rest of skew to auto and start rewducing bclk to find limit.
next set bclk skew to +12 , set Skew driving voltage to 1.04v,rest of skew to auto and start rewducing bclk to find limit.
if bclk is redusing going to +12 then slowly increase skew driving voltage from 1.04v to try to reduce bclk again.

thanks sham

[sfxs]

So I pretty much gave up on 5Ghz+ for daily use . Not worth how much I had to bump the voltage to get it stable at all; too high temps for my liking too.

I am working on stability at:
i7-2600k @ 4.8 HT off, 1.350v

I know 1.325v is unstable (small fft fail < 1 minute).

4x4GB @ 1866Mhz, 8-9-8-24-2T, 1.625v

I know 1.600v is unstable (blend fail < 1 minute).

At the above settings I ran blend overnight; 3 of 4 threads were still running after 8+ hours; one thread failed with a rounding error after ~2hr.

I am testing a bump in VCCIO to 1.07500 currently - does anyone have any insight as to where I should look for additional stability at these settings?

Thanks,
-sfxs

[jcniest5]

...the wrong setting can produce CPU sensitivities to '00' at resets etc :

Is this dangerous or a can Reset CMOS resolve this problem? I might try it if it's not dangerous.

[LardArse]

Is this dangerous or a can Reset CMOS would resolve this problem? I might try it if it's not dangerous.

reset cmos and you're good

[jcniest5]

reset cmos and you're good

Will try it later then. Thanks!

[Loch]

Hi, I'm experiencing some problems here, i get a double post everything i touch the bclk. Is there any option or bios to get rid of the double post?

Am using bios 1303

[LardArse]

Hi, I'm experiencing some problems here, i get a double post everything i touch the bclk. Is there any option or bios to get rid of the double post?

Am using bios 1303

its a limitation of using the management engine of PCH to change the bclks, every change a 'shutdown' and power on, i think partly because the bclk range of cpu isnt able to deviate far from bootup frequency.

[l0ud_sil3nc3]

its a limitation of using the management engine of PCH to change the bclks, every change a 'shutdown' and power on, i think partly because the bclk range of cpu isnt able to deviate far from bootup frequency.

makes sense because this does not happen when you are just changing the multi, and I have only noticed it on massive bclk changes that stray away from the default bclk i.e. 100>105

[subzero 1979]

hello guys i want to know for k series processor
overclock take enable intel speedstep tech and turbo mode or take it off?????

[l0ud_sil3nc3]

hello guys i want to know for k series processor
overclock take enable intel speedstep tech and turbo mode or take it off?????

leave turbo on and turn off speedstep and c1e, c3 and c6

[subzero 1979]

thank you

[Loch]

its a limitation of using the management engine of PCH to change the bclks, every change a 'shutdown' and power on, i think partly because the bclk range of cpu isnt able to deviate far from bootup frequency.

Thanks for replying but I think u got me wrong. What I meant was I'll get a double post every time I shut down n power up. Yes I know the mb will do double post after I change bclk in bios n save. But is it normal that every startup upon shutdown will do a double post?

[aoch88]

I am testing a bump in VCCIO to 1.07500 currently - does anyone have any insight as to where I should look for additional stability at these settings?

Thanks,
-sfxs

What does VCCIO do? How about CPU VTT? Does it impact the Vcore or stability like in the case of LGA1366?

[sfxs]

What does VCCIO do? How about CPU VTT? Does it impact the Vcore or stability like in the case of LGA1366?

I have mostly been following this information posted by an ASUS rep.

According to that, VCCIO is involved in the memory controller. As I was pushing the ram a bit past spec (not much, but it is 4x4GB - much harder to OC), I decided to up it a bit. I was erroring/crashing linx in seconds before I upped it. After, I ran about 15 minutes or so and saw a couple 101 bsod's so upped the vcore too. I ran 6hr small fft and 20 pass 14GB working set linx today without issues, as well as some 3dMark 11 Extreme passes. I am about to set up blend and go to sleep.

TLDR: VCCIO seems to help if you are pushing ram very hard or have 4 sticks instead of 2. My current voltages etc. are in sig. - everything else is on Auto; PLL and LLC as well.

UPDATE:

[Apr 8 06:52]FATAL ERROR: Rounding was 0.4981384277, expected less than 0.4
[Apr 8 06:52]Torture Test completed 205 tests in 2 hours, 17 minutes - 1 errors, 0 warnings.

-sfxs

[subzero 1979]

when i set the voltage to 1.55 i take cpu overvoltage error
what it means?????
how i can to bypass this error
ty

[Leeghoofd]

set the Vcore readout to ignore in the Bios monitor tab...

[stasio]

ASUS MaximusIV-Extreme BIOS 1204

ftp://ftp.asus.com.tw/pub/ASUS/mb/LGA1155...e-ASUS-1204.zip

[LardArse]

Thanks for replying but I think u got me wrong. What I meant was I'll get a double post every time I shut down n power up. Yes I know the mb will do double post after I change bclk in bios n save. But is it normal that every startup upon shutdown will do a double post?

yes , its normal, if bclk is some steps from 100.0 ( i cant remember how many)

[subzero 1979]

i have 1303 its older this one???

[jcniest5]

i have 1303 its older this one???

No, 1204 is older than 1303.

[Loch]

yes , its normal, if bclk is some steps from 100.0 ( i cant remember how many)

Oh I see, I'm running 106 bclk completely stable, jus the double boot every startup is annoying. Y do some of the others running higher bclk got no double post? Does this has anything to do with the mb?

[chew*]

Here is a double edged sword, tip for maximizing bclk/yet the wrong setting can produce CPU sensitivities to '00' at resets etc :



First set Skew driving voltage to 1.04v, set bclk skew to 0 , rest of skew to auto and start pushing bclk to find limit.
next set Skew driving voltage to 1.04v, set bclk skew to -8 , rest of skew to auto and start pushing bclk to find limit.
next set Skew driving voltage to 1.04v, set bclk skew to -12 , rest of skew to auto and start pushing bclk to find limit.
if bclk is increasing going to -12 then slowly lower skew driving voltage from 1.04v to try to max bclk again.

for reducing bclk First set bclk skew to 0 , set Skew driving voltage to 1.04v,rest of skew to auto and start rewducing bclk to find limit.
next set bclk skew to +12 , set Skew driving voltage to 1.04v,rest of skew to auto and start rewducing bclk to find limit.
if bclk is redusing going to +12 then slowly increase skew driving voltage from 1.04v to try to reduce bclk again.

Not to say this doesn't work but lets says all cpu's react diff?

I played with every skew setting on one of my chips. The lower 4 do not have ill effects. The top 2 ( voltage + bclk skew ) however no matter what setting or combo fail to post.

Leaving them alone =