To or not to run 5.0 all the time?

T

tangoseal

[H]F Junkie
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Dec 18, 2010
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Does any one out here run 5ghz or 5ghz + all the time> I use speed-stepping and c1e to reduce core voltage on the fly and it works great so far.
 
Yep. 5.0ghz 24/7. No power saving. Runnin that way since launch without any trouble what so ever.
 
tekneek said:
mind sharing your settings to achieve your specs?
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1.465v, PLL overvolt, LLC, under water. Everything else auto. Its IBT stable at 1.42v, but P95 Small FFT stresses the weak part of the CPU and requires a bit more voltage. You can go even further with IBT and the new AVX instruction set, which im guessing would make them both require about the same core voltage.
 
I would only run 5ghz or (insert high clock here) 24/7. if the voltage is right or i have money to blow.

not that i can hit 5ghz or anything :(
 
When I overclocked back in the day, I'd find out the fastest it could run at and be stable then clock it down about 10%. May or may not have done anything to help with longevity, but it made me feel better I wasn't pushing it to the edge all the time.
 
I don't run full speed. The SB is all about saving power. Use these benefits unless you fold 24/7.
 
I would leave power saving on. It does not really impact performance and it saves power and reduces the heat output.
 
I don't think there really is any performance penalty if you let it drop back dynamically to lower clocks when not under heavy loads..

I mean, you don't need 5Ghz Sandy Bridge when browsing your email...

And you can use a lot less power while browsing your email as well...

The only time I'd force a CPU to not use automatic power saving, clock reducing features is if it were some sort of folding rig under full load all the time...

But personally I don't fold... costs a lot on the electric bill...
 
Be aware that SB are not that forgiving as the X58 in terms of over-voltage.

I have a friend that runs 5.0Ghz daily, but he got a really amazing batch that can do it at a very low voltage.

If you are runing 1.467v for daily use... maybe you should back down a little...

The VID of the SB is 1.52v ... this doesn't mean that you can run 1.52v at all time... it just means that the cpu is really to handle voltage pikes of 1.52v.

Again, be aware that SB can degrade real fast when exposed to high voltages.
 
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QuiteSufficient said:
Son I drive a 5.0 and run 5.0
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Coyote?

And about running 5.0Ghz 24/7, are the worries mainly about high voltages? So if one person had 4.8Ghz, but got a sub-par batch that requires a lot of voltage, then running that 24/7 wouldn't be ideal either would it?
 
Postmodum said:
Be aware than SB are not that forgiving as the X58 in terms of over-voltage.

I have a friend that runs 5.0Ghz daily, but he got a really amazing batch that can do it at a very low voltage.

If you are runing 1.467v for daily use... maybe you should back down a little...

The VID of the SB is 1.52v ... this doesn't mean that you can run 1.52v at all time... it just means that the cpu is really to handle voltage pikes of 1.52v.

Again, be aware that SB can degrade real fast when exposed to high voltages.
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Running for months now, not a slowdown and all benches running as fast as ever. I'm at 1.4V+ on air.
 
Multiple benchmarks shows that even with multiple GPUs there is 0% gaming performance increase after 4.8GhZ on SB, and the diminishing return starts well before that (like 4.4GhZ). Unless you're doing the typical CPU-intensive stuff (video editing etc) then there isn't a reason to rock 5GhZ all the time.

Having said that, sticking with the speedstep isn't a bad idea.
 
nissanztt90 said:
1.465v, PLL overvolt, LLC, under water. Everything else auto. Its IBT stable at 1.42v, but P95 Small FFT stresses the weak part of the CPU and requires a bit more voltage. You can go even further with IBT and the new AVX instruction set, which im guessing would make them both require about the same core voltage.
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What about its stability in blend test?

:D
 
LAiN_OfTheWired said:
Multiple benchmarks shows that even with multiple GPUs there is 0% gaming performance increase after 4.8GhZ on SB, and the diminishing return starts well before that (like 4.4GhZ). Unless you're doing the typical CPU-intensive stuff (video editing etc) then there isn't a reason to rock 5GhZ all the time.

Having said that, sticking with the speedstep isn't a bad idea.
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16 point gain with a 200 to 300mhz oc in 3dmark 11. But its heavily gpu based
 
Yeah i have my 2500-k Running at 4.4 ghz, anymore is pointless imo i plan on keeping my computer for a few years. I think 1.4+ volts into these chips 24/7 will degrade them, but if you got money to burn its no big deal i guess.
 
Running 5 ghz over 4.5 ghz, at least for me, is energy-equivalent to illuminating a small room. I see little point.
 
ShuttleLuv said:
Running for months now, not a slowdown and all benches running as fast as ever. I'm at 1.4V+ on air.
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a) low 1.40's it's one thing ... high 1.40's it's another ;)
b) The SB is a recent chip, so if you were already suffering from degradation at this point... that it would be worst than i thought ;)

Well i had a chip that had a lifespan before degrading ... of 2 days :)
Benching on LN2 of course.

But all 32nm chips are showing the same degradation... 990x are degrading really fast ...
 
When Extreme overclockers say run it below 5Ghz 24/7 then you think they would have a reason for saying so
 
Spoony your info sucks as usual. I have been at 4.9 to 5.1 ghz range since I got my sandy in early January, not a single problem, nothing running any different.
 
Scotty I need more Power!!! This is the [H] forum most would say you haven't gone far enough. Me on the other hand would tune it back to 4.
 
I was worried about running 1.4v. Now that I see people pushing to 1.47v, I think I might bump it to 1.38v and see how fast I can get it.

I'd rather keep the chip for 5-6 years at a lower voltage than hit 5.0Ghz at higher voltage.
 
hmz said:
I don't run full speed. The SB is all about saving power. Use these benefits unless you fold 24/7.
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With the correct + offsets you can easily achieve the full power saving benefits of Sandy. Most of the time your computer is either idle or in ultra low usage surfing the internet, listening to music, even watching a movie.

For instance my mini-ITX with 2500K burns as high as 100watts total system when im running prime95 but just sitting there doing nothing its only pulling 35watts all measured on my APC Backups-Pro with nothing else attached, not even an LCD. In fact the computer I am typing this reply on right now :-P

I know its a far stretch and big numbers but my 1.14kW gaming monster in my signature only pulls 175 +/- a few watts of power idle and that is 4.8ghz with the correct offsets in place. Most of the 175 watts is the other hardware like 3 GPUs and 4 HDDs water pump lighting (black lights) etc. The 2600K at idle 1600mhz is only burning maybe 35watt.

As long as that C1E and speedstepping kicks in you are going to be at the bottom of the tdp envelope. Its when you set manual voltages not using offsets or disable c1e and speed stepping that you are going to consume full wattage round the clock.
 
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Spooony said:
When Extreme overclockers say run it below 5Ghz 24/7 then you think they would have a reason for saying so
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With speed stepping and other power management features enabled are you running it 24/7? Nope. And secondly what defines extreme? Technically I and others alike who truly water cool their system is extreme, atleast it was 6-7 years ago. There is no extreme anymore. Even with all kinds of cool frozen liquified gases and submerged mineral oil computers. Just another hobbyist in my opinion.

I know what is extreme:

I wonder if I could some how submerge my computer in 100% VODKA and then throw the whole unit in the freezer? Since Vodka will not freeze solid like water I can achieve sub zero cooling. And have a few hiccups on the way haha Now that would be extremely cool at least.

Of course someone will try it now and learn that Vodka is like 80% water and fry their system.
 
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The real question is, do you REALLY need the extra 500mhz? Mine screams at 4.2ghz.
 
LAiN_OfTheWired said:
Multiple benchmarks shows that even with multiple GPUs there is 0% gaming performance increase after 4.8GhZ on SB, and the diminishing return starts well before that (like 4.4GhZ). Unless you're doing the typical CPU-intensive stuff (video editing etc) then there isn't a reason to rock 5GhZ all the time.

Having said that, sticking with the speedstep isn't a bad idea.
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I'd go even further and say for gaming there isn't much benefit over using a Nahelem architecture at under 3Ghz...
 
Playing at 2560x1600 on Blizzard's "Extreme" setting in Starcraft 2, I was really unhappy with any processor performance-wise until I went to the 5ghz 2500k

A ridiculous example, and maybe SC2 is the most cpu intensive game out there, but with a 4.1ghz Phenom II, I had to keep it at 1920 on "Ultra"
 
QuiteSufficient said:
Playing at 2560x1600 on Blizzard's "Extreme" setting in Starcraft 2, I was really unhappy with any processor performance-wise until I went to the 5ghz 2500k

A ridiculous example, and maybe SC2 is the most cpu intensive game out there, but with a 4.1ghz Phenom II, I had to keep it at 1920 on "Ultra"
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Interesting...


Well, I have yet to run anything on my stock speed Core i7-920 (2.67ghz) that isn't GPU limited (at the settings I play at) with CPU load never going over ~35%...
 
piXel said:
Yeah i have my 2500-k Running at 4.4 ghz, anymore is pointless imo i plan on keeping my computer for a few years. I think 1.4+ volts into these chips 24/7 will degrade them, but if you got money to burn its no big deal i guess.
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An Intel CPU is obsolete in what... 1 year or less anyhow, with the Tick Tock. You will have to get a new MOBO and Chip to upgrade going with Intel, so who cares if you gotta jack up the volts? You'll be tossing it out in about 6-9 months for 2011 right?
 
tangoseal said:
With the correct + offsets you can easily achieve the full power saving benefits of Sandy. Most of the time your computer is either idle or in ultra low usage surfing the internet, listening to music, even watching a movie.

For instance my mini-ITX with 2500K burns as high as 100watts total system when im running prime95 but just sitting there doing nothing its only pulling 35watts all measured on my APC Backups-Pro with nothing else attached, not even an LCD. In fact the computer I am typing this reply on right now :-P

I know its a far stretch and big numbers but my 1.14kW gaming monster in my signature only pulls 175 +/- a few watts of power idle and that is 4.8ghz with the correct offsets in place. Most of the 175 watts is the other hardware like 3 GPUs and 4 HDDs water pump lighting (black lights) etc. The 2600K at idle 1600mhz is only burning maybe 35watt.

As long as that C1E and speedstepping kicks in you are going to be at the bottom of the tdp envelope. Its when you set manual voltages not using offsets or disable c1e and speed stepping that you are going to consume full wattage round the clock.
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Even at 5.1 maxed with all C1E and EIST disabled, the proc still drops to about 35 watts when idle. It's just a great chip. You're not always pushing it high. Very flexible.
 
i7 2600K at 4.8 24/7, with a voltage of only 1.34v. :)

I also often game at 5.1 with 1.42v. :)

Can do 5.4 with 1.49v, but that voltage is a little bit too high for my taste.
 
How are you guys setting your offsets? When I click offset it will not let me edit the main value.

Do I go with a positive number or negative number?
 
Suprfire said:
I would only run 5ghz or (insert high clock here) 24/7. if the voltage is right or i have money to blow.

not that i can hit 5ghz or anything :(
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Agreed, if I need questionable voltage to achieve 5GHz I'd have no problem dropping it to 4.8GHz which would run on much more reasonable voltage. The performance loss will not be noticed. Heat generated and ensuing lack of stability a year or so down the line by forcing 5GHz when the CPU is clearly not comfortable at that speed will be.
 
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