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[Official] The Sandy Bridge 5ghz + Club - Page 90  

Poll Results: Should we use blend only or small fft too?

Poll expired: Feb 25, 2011  
  • 53% (37)
    1 hr Blend only
  • 46% (32)
    1 hr Small Fft, 1 hr Blend
69 Total Votes  
post #891 of 2120
Thread Starter 
Quote:
Originally Posted by os10 View Post
i can do 5.0 on the desktop but not under p95 and i am wary about pushing volts any higher. already running this chip as hot as i was my old one (q6600@3.3) and that is a bit spooky given the size difference. i imagine molten lava in there...

according to this guy:
http://hardforum.com/showthread.php?t=1578110

up to 1.45v vcore is safe for 24/7. and less an 10% will do 5.0, less an 2% 5+ (air)
Old article and rubbish, almost EVERY Sandy will do 5ghz. That article was before they revised the bios for each board to support cpu pll overvoltage. Max safe vcore is 1.55v
    
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post #892 of 2120
Quote:
Originally Posted by Jonesey I7 View Post
That article was before they revised the bios for each board to support cpu pll overvoltage.
The article was written after cpu pll overvoltage was implemented, because the article specifically mentions how the use of cpu pll overvoltage improves the ability to overclock. However, it's not clear from reading the article whether the 100 D2 processors were tested with or without cpu pll overvoltage enabled to arrive at those percentages that are listed. Based on the fact that the processors are D2, I suspect the tests were done with cpu pll overvoltage enabled.

Now, I doubt anyone here has ordered 100 SB processors and tested them to see how they perform. I would be shocked if anyone on this forum has even had access to 5 CPUs. The users here are kind of a biased sample group because most people don't post the results of a 5.0Ghz overclock unless it succeeds. You don't see a lot of "I just wanted to let everyone know my attempts to overclock my 2600k to 5.0Ghz were a total failure." I suspect the serious overclockers simply exchange out the lesser-performing CPU and get a new one to overclock.
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post #893 of 2120
Quote:
Originally Posted by PhattyBoomBatty View Post
The article was written after cpu pll overvoltage was implemented, because the article specifically mentions how the use of cpu pll overvoltage improves the ability to overclock. However, it's not clear from reading the article whether the 100 D2 processors were tested with or without cpu pll overvoltage enabled to arrive at those percentages that are listed. Based on the fact that the processors are D2, I suspect the tests were done with cpu pll overvoltage enabled.
The article is more recent, but I'm pretty sure that testing was done way before PLL Overvoltage was available to Asus (or anyone else besides Intel). I remember seeing those same 100 CPU stats quoted by reviewers a few weeks before release.
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post #894 of 2120
Some how i'm happy i got the 2600k with HT. i can do 5ghz with only 1.456v ht on and without ht i can do 5ghz 1.41v. Here is the thing, i had a major problem with my gtx 580 that would drop to like 1fps and then back up to butter smooth. i only notice this problem with ht-off. I checked my cpu usage and it seems that when the video card drop frame, the usages of it goes down and cpu usage goes to 100% max load on all 4 core for a short time. i think it could be one app or processor i have running in the background, i tried to turn off everything i could think off with the same issue. i was about to reformat everything but since issue is only with HT-OFF , I left Ht-On cause somehow this issue does not happens with it ON.
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post #895 of 2120
ok guys what is the deal? why is OCN having such a hard time hitting just 5Ghz?

http://www.xtremesystems.org/forums/...d.php?t=266646
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post #896 of 2120
Thread Starter 
Quote:
Originally Posted by bratas View Post
ok guys what is the deal? why is OCN having such a hard time hitting just 5Ghz?

http://www.xtremesystems.org/forums/...d.php?t=266646
not many are having trouble, but NO ONE wants to put 1.62+ volts through these new chips, as you quoted a fool. No offense.
    
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post #897 of 2120
i didn't say 1.6+ was smart. I just keep seeing people talk about the problems they are having, many are below 1.5 that are hitting 5Ghz+
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post #898 of 2120
A failed attempt here.

I worked my way to 5.3 GHz, figured that was the max. So I after running super pi, I went for a ran, obviously I BSODed due to voltage issues; not wanting to go over 1.49 volts, I then tried a 5.0 GHz (@around 1.46 voltsO) run of Prime. After about 20 minutes, my temps spiked up from an average of 78-86 to 95 degrees, so I stopped the test right then and there.

I have no doubts that this chip has the ability to get into this club, but with my $10 cooler it's not worth risking a $230 investment for a little title.
Edited by ehpexs - 2/11/11 at 10:04pm
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post #899 of 2120
Quote:
Originally Posted by bratas View Post
ok guys what is the deal? why is OCN having such a hard time hitting just 5Ghz?

http://www.xtremesystems.org/forums/...d.php?t=266646
i would try this out....but my motherboard won't allow me to get higher than 1.55 v core
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post #900 of 2120
Hey can I be in? Hopefully I got the rules right and that you can see my screen capture. I cant seem to find a good capture prog. Everytime I upload to my photoserv it makes it really small. And when I try to resize them they get all fubarred w/distortion. Lemme know if you need a better pic. Any advice on a good screen capture prog would be most appreciated lol....



clock 5215
vc 1.48
multi 52
bck 100.3
Edited by sndstream - 2/11/11 at 10:37pm
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