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Sandybridge 2500k questions - Page 2

post #11 of 21
Quote:
Originally Posted by flopper View Post
the sandy bridge is sensitive, the bclk I suggest you adjust, even lower it.
I run 5ghz at 1.4ghz.
I had bsod idle, no issues gaming nor prime.
adjusting vscca memorye tc..made a difference, I guess the idle state downclock the voltage a little also, I seen it on my board, load it goes up, and one would assume, Gee then idle it just should work,
but the case seems not so.

I havent seen any degrading as far.
I dont expect any either.
Now time to get a 6990 when its out.
Your response is a bit confusing....
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post #12 of 21
I'm rock stable at 4.5ghz @ 1.32vcore.

13+ hours of Prime95 and OCCT...

My system is runnning 24/7 since one month and no BSOD.

I know that 1.32v is a little bit high for 4.5ghz but i was unstabble under this voltage...

I'm using the ASRock Extreme4 motherboard and after changing the short and long power duration limits setting in the bios (info) everything run perfectly!
    
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post #13 of 21
Quote:
Originally Posted by exale View Post
I'm rock stable at 4.5ghz @ 1.32vcore.

13+ hours of Prime95 and OCCT...

My system is runnning 24/7 since one month and no BSOD.

I know that 1.32v is a little bit high for 4.5ghz but i was unstabble under this voltage...

I'm using the ASRock Extreme4 motherboard and after changing the short and long power duration limits setting in the bios (info) everything run perfectly!
Yeah 4.5-4.6 seems to be the sweet spot for these guys, i didnt even have to adjust voltages for my 4.6. Too bad even after being bench stable my board still wont agree for some reason.
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post #14 of 21
indeed guys,don`t mess around with those" complicated" gimmick boards,get a basic one-run those 4,5-4,8 ghz,be happy and save your money.
post #15 of 21
Thread Starter 
Quote:
Originally Posted by sockpirate View Post
Well , sad to say , today i benched a 1 hour run of prime could have went more, at 5ghz with 1.490 LLC lvl 2. Even did a 1 hour run of OCCT on medium data sheet . Everything seemed to be running cherry.Was gaming on and off black ops all day. It was even the prime bench i used to get into the 5ghz club , i was pretty happy, especially seeing as prior to this i was [...]


Anyways, will lowering the BLCK damage the board?

I could try 90 BLCK and 51x or 95BLCK and 51x, maybe 50x is just a fluke.

I've messed with all other voltages, +/- and it helps none. Same x101 error.

If the BLCK is a no go, then I'm just going to stay at 4.5GHz @ 1.34v, temps only reach 60C in prime95 small fft.
Edited by kennyparker1337 - 2/15/11 at 7:45am
post #16 of 21
Quote:
Originally Posted by kennyparker1337 View Post


Anyways, will lowering the BLCK damage the board?

I could try 90 BLCK and 51x or 95BLCK and 51x, maybe 50x is just a fluke.
I was reading the higher the OC the lower the BLCK?

EDIT:sorry for the hijack !
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post #17 of 21
Quote:
Originally Posted by kennyparker1337 View Post

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post #18 of 21
Thread Starter 
Well I guess I'll just leave it at 4.5GHz @ 1.35v on AIR.

Thats way higher than I was hoping to upgrade to an i7 build @ 4GHz.

I also never saw it drop below 50fps during a 10man raid EVEN while recording full screen with fraps.
post #19 of 21
Hey man your chip seems to perform a bit better than mine voltage wise, ugh my chip is the epitome of what a bad batch is. 5.0 was only stable at 1.5v+ and 4.6 , well here is a screen of my 4.6 prime run. This is on air with my Frio running both fans on high.

This is LLC level 1 with CPU PLL disabled, along with the power saving features disabled also.



Uploaded with ImageShack.us

My h70 comes in this week, hope temps go down, my frio did good cooling my 965 BE on 4.0ghz but these sandy bridges are a different animal for sure.
Hope my mobo doesn't give me some random problems especially since this was running on prime for a few hours.

Le sigh
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post #20 of 21
Thread Starter 
Quote:
Originally Posted by sockpirate View Post
Hey man your chip seems to perform a bit better than mine voltage wise, ugh my chip is the epitome of what a bad batch is. 5.0 was only stable at 1.5v+ and 4.6 , well here is a screen of my 4.6 prime run. This is on air with my Frio running both fans on high.

This is LLC level 1 with CPU PLL disabled, along with the power saving features disabled also.



Uploaded with ImageShack.us

My h70 comes in this week, hope temps go down, my frio did good cooling my 965 BE on 4.0ghz but these sandy bridges are a different animal for sure.
Hope my mobo doesn't give me some random problems especially since this was running on prime for a few hours.

Le sigh
Ouch lol.

At 1.55v I was only getting max temps of 80C.

At 1.35v I don't even see 65C. If 60C. (In real world, I never see 55'ish C).

Temps were never the problem for me, it just won't even pass prime95 1minute at 50x multiplier even at 1.55v.

I figured instead of running a 4.8 or 4.9 at 1.4-1.45v +, I could just take it down to 4.5GHz and run at a lowly 1.34v.

As the real world difference between 4.5, 4.8-4.9, and even 5.0 is probably not even that much.

I think the unstable 5.0 gave me -20fps or more than this stable 4.5 is giving me.
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