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Help with i7 870 please

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set RAMs to 1600MHz

let everything set as it was by default in BIOS, just turn off the Turbo, Yes it is off if the software uses all the 4 logical cores, but if is Turbo on on 1 Core, it uses 27 Multiplier, which could with 200FSB cause GREAT instability I think :) 5400MHz is quite a lot... :)
 
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set RAMs to 1600MHz

let everything set as it was by default in BIOS, just turn off the Turbo, Yes it is off if the software uses all the 4 logical cores, but if is Turbo on on 1 Core, it uses 27 Multiplier, which could with 200FSB cause GREAT instability I think :) 5400MHz is quite a lot... :)

yes but shouldn't turbo be off it multiplier is 22 or lower because higheste setting is turbo that has a max of x27
 
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when overclocking over the stock Turbo Frequency (which is 3,3 GHz for 870) its recommened to always turn the Turbo off

But Im not sure if I completely understand your question sorry :(
 
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Cpu tweaker 1.5 is showing turbo is on but not cpu-z and asrock OC they are showing that it's off and multiplier is 18. Is turbo off?

what i ment is when multiplier for my cpu goes from turbo setting to what it is now, 18, dosn't that mean i have disabled turbo? (it looks like that)

Still the same low temperature compared to 4.0 with turbo on (about 30-32 celsius almost idle), ram is1600/800 mhz and volt is 1.336 according to cpu-z

The stock frequency with turbo on is 2.930 mhz (22x133) and i had it at 22x148= 3.256 mhz feel free to correct me if i am wrong (i do not know everything ;-)


Somethings wrong, with turbo on and up to 4.0 ghz i get 10 sec in SuperPi 1m now i get 22 sec
 
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Using speecy i get one core on 3.600mhz and the 3 others ones 1800mhz, is it speedstep that makes my cpu slow? (its on by default and C1E is disabled) Or is it C state tech that give me low ghz om 3 cores and high result in SuperPi 1 m 20 sec (C state tech is its at max, 6c active)

Controlpanel,system is showing that my cpu is std 2.93ghz and 4.40ghz where did 4.40 ghz come from? 200mhz x18=3600
 
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JrRacinFan

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@4.4ghz
It's reading max multi.

Speedstep+single thread application is causing that.
 

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Thanks for the link on the x58s... didn't realize all this time about the ioh/qpi pll relationship. Was the missing ingredient! I was leaving the ioh low and couldn't get stable 4+ Ghz stable ocs with 1.36vcore or lower. Got 4.1 stable now, able to use my 24GBs of 1866 ram at 1800, and at 1.36 vcore. Temps are good on my D14. Now will either try 4.2, or decrease vcore at 4.1. And gasolin, yes speedstep ect will change the cpu speed. If you are trying for an initial overclock, turn all that off and verify it. Then turn it back on.
 
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Johnspack i know speedstep is to make power comsumption low when i don't use my pc.But not that speedstep can make multiplier higher then the value i have choosen (18)

Is there anybody who can tell my why SuperPi 1m only is 22 sec standard is 12 sec
 
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New information my pc is stable at stock speed (turbo on) no surprise there. passed Intel burn x5 on standard ram 1600mhz superpi 12 sec

148x27 (turbo on) stable on standard and high x5 intel burn test, ram 1480/740 superpi 11

All with vcore and other settings set to aut or standard value, are gonna try 160 with turbo on and vcore on auto, is one core able to handle up to 4320 mhz (27x160) by using 160 i can get my ram to run 1600mhz as they do standard on aut (bclk 133) but not with bclk 148 when ram is set to aut

200x18 on all cores vcore 1.375 ram 1600mhz it froze before it finished nr 4 out of 5 passes in intel burn standard, cpu-z shows about 1.360 volt when it's idle, but during intel burn test it only used about 1.200-1.224 volt why? I would have thought that my volt was 1.360 all the time (speedstep was disabled)

As multiplier i discovered i can choose something called aut where i can se and disable (if i want to) turbo.
How does that work if i choose aut as multiplier for my cpu and disable turbo? what will my multiplier then be? More then 22? (highest std value) and only turbo uses up to 27 in multiplier?
 
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what will my multiplier then be? More then 22?

22 max. Don't bother trying to use turbo past 150bclk, you will take days and weeks messing around with items and never find a culprit to hard freezes/lockups. Set it to 20x200 1.25v and be merry.
 
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22 max. Don't bother trying to use turbo past 150bclk, you will take days and weeks messing around with items and never find a culprit to hard freezes/lockups. Set it to 20x200 1.25v and be merry.


200x18 on all cores vcore 1.375 ram 1600mhz it froze before it finished nr 4 out of 5 passes in intel burn standard. Can't get it stable at 3.6 ghz or higher on all cores, my pc freezes if i try 3.6ghz or more (it can't finish pass nr 4 with intel burn test on standard)
 

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200x18 on all cores vcore 1.375 ram 1600mhz it froze before it finished nr 4 out of 5 passes in intel burn standard

Try 1200 ram for me and report back.
 
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Try 1200 ram for me and report back.

Can't choose 1200mhz for my ram, but i can choose a range between a min and max speed that could be something like 800-1600 or 533-800 mhz
 

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Can't choose 1200mhz for my ram, but i can choose a range between a min and max speed that could be something like 800-1600 or 533-800 mhz

Crap! Can't get that ram speed any lower at all at same bclk?
 
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Crap! Can't get that ram speed any lower at all at same bclk?

could choose between 444-888, 592-1184,740-1480 and 888-1760 mhz for my ram

I choose 592-1184mhz and i got bsod just a few sec after the screen,logo, where i could press F2 or DEL to enter bios

back on 148 and aut ram 1480/740 with turbo on (4.0ghz) std 3.256mhz
 
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Something new?
 

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Nope. Can't think of anything that could help give you a little boost, other than drop your cpu core multi's and continually try upping bclk. I think you're doing good on that Asrock board you got.
 
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So Im stuck at 165 FSB

I think it isnt bad.

I just want to say thank you to all of you who were willing to help me.
 
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Thread starter try disable hyper threading, on my pc i can't use 154 bclk (turbo on) with hyper threading on but with hyper threading disabled i can use 154 bclk with turbo on.

Hyper threading on is causing unstability, not able to boote when bclk is about 150 (turbo on)
 
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