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Got her to 4.5ghz, 45x, 1.38v.
Been running Prime95 Small FFTs for just over 45mins so far. Will leave it running a bit more and then I'll try the multiplier at 46x.
I've noticed something where I cant get above 4.5 no matter what voltage i use, well I tried up to 1.4 and I freeze and the windows boot screen.
So i went from trying 4.8 down to 4.7, booted into 4.6 with 1.35v but froze running prime95. So I dropped down to 4.5 @ 1.35v stable, decided to drop my voltage and now it seems like I'm stable @ 4.5 with 1.3v.
Just seems kind of weird that I can drop that much more voltage and be stable but i go up to 4.6 and I unstable. Need to play with some more settings I suppose.
I've noticed something where I cant get above 4.5 no matter what voltage i use, well I tried up to 1.4 and I freeze and the windows boot screen.
So i went from trying 4.8 down to 4.7, booted into 4.6 with 1.35v but froze running prime95. So I dropped down to 4.5 @ 1.35v stable, decided to drop my voltage and now it seems like I'm stable @ 4.5 with 1.3v.
Just seems kind of weird that I can drop that much more voltage and be stable but i go up to 4.6 and I unstable. Need to play with some more settings I suppose.
have you enabled PLL overvoltage? not saying this will necessarily break through the wall you're seeing, but it's worth a try.
What settings did you use?
I've noticed something where I cant get above 4.5 no matter what voltage i use, well I tried up to 1.4 and I freeze and the windows boot screen.
So i went from trying 4.8 down to 4.7, booted into 4.6 with 1.35v but froze running prime95. So I dropped down to 4.5 @ 1.35v stable, decided to drop my voltage and now it seems like I'm stable @ 4.5 with 1.3v.
Just seems kind of weird that I can drop that much more voltage and be stable but i go up to 4.6 and I unstable. Need to play with some more settings I suppose.
Well that sure is toasty, but it was fun hitting 5ghz. I only ran this for a few seconds and backed down to my default settings which are 4.5ghz ~1.38v with Prime95 load temps of ~65C max.
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@rmp: Just an interesting observation. My 2600K @ 4.7Ghz gets 45k PPD on a 2686.
Nevermind, your lower PPD is probably coz of the overhead of two GPU3 clients.
i honestly dont know why some of you want to go over 4.6ghz.
i think 4.6ghz is a sweet spot with these cpu's, and its more than enough for today's needs.
I got my 2600k up to 4.7 but I have hit the wall. I upped the vcore to 1.4v and turned off all the throttling options and it is prime stable with temps maxing out at 67-69. I am not really sure what other options to change, but I really want to get this chip to 5.
i honestly dont know why some of you want to go over 4.6ghz.
i think 4.6ghz is a sweet spot with these cpu's, and its more than enough for today's needs.
Are you folks stable when stressing a single core? Stressing a single core with EIST and C1E enabled doesn't get the same voltage response as stressing all four cores. For example, my system is completely stable when stressing all four cores (full voltage response) but crashes when stressing a single core (partial voltage response). I don't know how to get around this without disabling EIST and C1E or bumping up the voltage excessively to compensate.
You could try lowering the LLC and raising the voltage offset. This should keep your full load voltage the same while raising the voltage in other conditions. My problem was different in that I was crashing at idle, but it should work for you too. It's not elegant but I don't know any way to directly control the rate at which EIST changes the voltage (besides making it constant).
My settings for anyone interested are 46 multi, voltage on auto (0 offset), and LLC at level 4 (ASRock board; default is level 5). This results in a load Vcore of ~1.27. The processor seems p95 stable down to ~1.23 but I like the safety margin (and it's plenty low anyways). I have a 2600K, P67 Extreme4, and a Zalman 9700 heatsink.
5.0ghz stable @ 1.46v. 75C max using newest IBT that utilizes the SB optimizations. 71C using old IBT or Prime 95.
5.0ghz stable @ 1.46v. 75C max using newest IBT that utilizes the SB optimizations. 71C using old IBT or Prime 95.
Nothing special really. Enabled PLL overvoltage, manual voltage set to 1.46, LL to Ultra High -- all C States and Speedstep enabled. Right now I'm trying to get it stable using the offset voltage function.
5.0ghz stable @ 1.46v. 75C max using newest IBT that utilizes the SB optimizations. 71C using old IBT or Prime 95.
Which version of IBT is that? I think I have 2.50.
Which version of IBT is that? I think I have 2.50.
Can you sleep with those settings?
Is this normal? 2500K, stock air cooled...seemed a bit high to me.
http://i53.tinypic.com/2liiih3.jpg
You have PLL overvoltage turned on, right? Try upping the VCCIO and VCCSA - those helped me reach 4.8 when I was having trouble.