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post #11 of 21
Quote:
Originally Posted by Ghostleader View Post
@darkinners

What´s your setting regarding "TurboPower Limit" and Core Current Limit?

Check so that it doesn´t throttle down during your LinX runs.






He probably mean that should overclock your "IMC" (memory controller), he obviously don´t know how the Sandy Bridge works, you can´t overclock the IMC separately with Sandy Bridge, it runs the same as the core.

Sorry just only overclocked AMD CPU's , in which NB hugely boosts the GFlops
Imma Intel overclocking newb
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post #12 of 21
Thread Starter 
Quote:
Originally Posted by sp4wners View Post
Maybe you should turn on HT? As far as I saw you have it off. If You want to campare with CPUs that have HT on you can forget about it

Edit: Sorry didn't saw HT was off on the other CPU.

Edit2: do you really care about synthetic benchmark? LOL... Then good luck with it
I was told to disable HT to run the LinX(because LinPack doesn't support Hyper Threading)
normal use I enable HT and the result I posted except the LinX test, the rest are all with HT on.


actually I am not a benchmark whore, I will just run them when my system newly installed and confirm all hardwares are working as they supposed to.

I now saw the result difference from the others and I started to worry if my hardwares are defective, if so I gotta bring them to service
    
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post #13 of 21
@darkinners

Okey, why I wonder was that those three LinX runs was not tight so therefore I wonder if it was throttle down.

So if it´s not throttle down, there´s somehting else going on, how does it look after, for example a 25 run of LinX, monitor cpu usage during the session.

Are you sure you have the latest Linpack?

Can be that your LinX doesn´t work properly with that Linpack you have, try this one Click here to download the latest version of LinX with updated Linpack libraries , from Intel 4.5GHz & 5GHz LinX Stable Club over at XS.

Or try IntelBurnTest


HT don´t work any good when all the thread are doing similary work as in LinX, higher GFlops with HT off.
Edited by Ghostleader - 4/4/11 at 9:02am
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post #14 of 21
Thread Starter 
Quote:
Originally Posted by Ghostleader View Post
@darkinners

Okey, why I wonder was that those three LinX runs was not tight so therefore I wonder if it was throttle down.

So if it´s not throttle down, there´s somehting else going on, how does it look after, for example a 25 run of LinX, monitor cpu usage during the session.

Are you sure you have the latest Linpack?

Can be that your LinX doesn´t work properly with that Linpack you have, try this one Click here to download the latest version of LinX with updated Linpack libraries , from Intel 4.5GHz & 5GHz LinX Stable Club over at XS.

Or try IntelBurnTest


HT don´t work any good when all the thread are doing similary work as in LinX, higher GFlops with HT off.
thanks again man
yes I pretty sure I have the latest LinPack
I downloaded off Intel's website.

I actually tried few times 5GB Ram use and 25 runs of linpack
the result is the same(slower than other chips)
I did those test with HT off and I did monitor the CPU source most of the time is 100% on all cores.
I guess the LinX ran fine :" (
    
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post #15 of 21
Thread Starter 
Oh man!! I found out what was the cause!
it was my firewire audio interface! totally the last place I would look into

I turned off my firewire audio interface, Boom!













what the hell? why would a firewire decrease a PC performance that much?

I investigate further, it was the firewire driver, I change the driver from
"Texas Instruments 1394 OHCI Complaint Host Controller" to "1394 OHCI complaint Host Controller(Legacy)
then when I turn on my Firewire audio interface, the perfromance still great!
still has a little drop but more like 3%, which I don't care!

Thanks every guys here helped me out !! Thanks again : )
Edited by darkinners - 4/4/11 at 10:09am
    
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post #16 of 21
Background apps can steal some performance. Try running with out CPUs and temp apps ect. Also you're right about leaving HT off I go from 70 to 110~ by disabling it for the avx Linx test. OC your memory more can help your results a lot if they will support higher speeds.
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post #17 of 21
Thread Starter 
Quote:
Originally Posted by Sinlok View Post
Background apps can steal some performance. Try running with out CPUs and temp apps ect. Also you're right about leaving HT off I go from 70 to 110~ by disabling it for the avx Linx test. OC your memory more can help your results a lot if they will support higher speeds.
thanks Bro, I got it all sorted out, it was the Firewire driver stole the performance what a hack : (
    
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post #18 of 21
@darkinners


Nice to hear that you sort it out

Btw, I see that you only need 1,2 vcore for 4,7GHz, pretty good if you ask me, looks like you got a nice chip there

I need 1,35 for 4,6GHz with my i5 2500K
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post #19 of 21
Quote:
Originally Posted by Ghostleader View Post
@darkinners


Nice to hear that you sort it out

Btw, I see that you only need 1,2 vcore for 4,7GHz, pretty good if you ask me, looks like you got a nice chip there

I need 1,35 for 4,6GHz with my i5 2500K
My 2500k needs volts also

4.6GHz @ 1.36v
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post #20 of 21
Thread Starter 
Quote:
Originally Posted by Ghostleader View Post
@darkinners


Nice to hear that you sort it out

Btw, I see that you only need 1,2 vcore for 4,7GHz, pretty good if you ask me, looks like you got a nice chip there

I need 1,35 for 4,6GHz with my i5 2500K
Thanks man! I feel so relief now : ), proved my hardwares are working fine, hate to bring stuffs to service : (

about the voltage, CPU-Z was reported the wrong voltage.
I tested run 4.7 stable @ 1.31V
5Ghz stable @ 1.425V

but I thought 4.5 is good enough for me : ) and the temperature is whole lot cooler (I ran LinX with AVX at 5Ghz 1.425V with Corsair H70, some core goes as hight as 86 degrees and acoustic temperature was 19 degrees.
can't stand it when summer comes .

4.5 is pretty fast already I'd say, thanks again man, you made me think out of the box to solve the problem
    
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