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Intel Speed Stepping and Overclocking

post #1 of 11
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Is it worth keeping Speed Stepping enabled on the LGA 1155 when you're overclocking? I heard opinions going both ways but I'm still a little confused about the actual benefits. I know it keeps your CPU cooler when idle and some say it even provides a longer life to the CPU, but it's also suppose to cause stability issues do the change in voltage it does automatically, even if you manually increase your VCORE.

I'd appreciate your comments and suggestions, I'm currently suffering from 0x000001E BSODs even though I ran Prime 95 Blend for 20+ Hours and Prime 95 Small FTT for 8 Hours with no issues. I've disabled Spread Spectrum but I'm not sure what to do about Speed Stepping.
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post #2 of 11
BSOD code 1E refers to increase vcore.
Anyway why would you bother to enable speedstep?
If you really want it just enable it and test for stability.
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post #3 of 11
Leave it on. As you said when you're idled it keeps your CPU cool and at a clock and voltage that'll increase the life span of your CPU. It does not effect stability because when you put your CPU on load, speed step no longer has control until you take it off load.

I know when I run P95 Blend my clock and CPU vcore both stay at their BIOS applied values, and don't jump as if speed step was in the mix.

To me there is honestly no point in disabling speed step as everything it does is a huge pro. There's really no cons.

Quote:
Originally Posted by Mr.Eiht View Post
BSOD code 1E refers to increase vcore.
Correct, 1.29v is most likely not enough for 4.6Ghz. All varies, every chip is different.
Edited by pjBSOD - 4/19/11 at 12:04pm
post #4 of 11
Thread Starter 
Quote:
Originally Posted by E-Peen View Post
Leave it on. As you said when you're idled it keeps your CPU cool and at a clock and voltage that'll increase the life span of your CPU. It does not effect stability because when you put your CPU on load, speed step no longer has control until you take it off load.

I know when I run P95 Blend my clock and CPU vcore both stay at their BIOS applied values, and don't jump as if speed step was in the mix.

To me there is honestly no point in disabling speed step as everything it does is a huge pro. There's really no cons.


Correct, 1.29v is most likely not enough for 4.6Ghz. All varies, every chip is different.
I appreciate the response, and as for the VCore. I mean I ran Prime95 Blend for nearly 20 hours without any BSODs, Crashes, or Worker Errors, if it was due the lack of voltage than wouldn't I get the BSODs during 100% load instead of when I'm only at like 25% load?
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post #5 of 11
Turn it on AFTER you finish final overclocking and have your machine completely stable.
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post #6 of 11
I like speedstep to stay on in normal browsing etc it sticks to the minimum 90% of the time and I get temps close to ambient. I don't need six cores at 4ghz to type a post. Ha!

Unfortunately my i3 rig turns it off if you make any changes to CPU settings.
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post #7 of 11
Quote:
Originally Posted by 3xVicious View Post
I appreciate the response, and as for the VCore. I mean I ran Prime95 Blend for nearly 20 hours without any BSODs, Crashes, or Worker Errors, if it was due the lack of voltage than wouldn't I get the BSODs during 100% load instead of when I'm only at like 25% load?
Well, here's a little thing that I experienced. I passed at least ten hours of Prime 95 Blend and ten hours of Large FFTs to ensure my final 4.5 overclock and memory stability when I first overclocked my 2600K. It worked fine for a long time, no errors, slowdowns, crashes, etc. One week later I was playing League of Legends and my computer would freeze up and after a restart it would say "Overclock failed" in the BIOS.

Once I increased the core voltage a little bit I have been stable for weeks. Just a little something to think about

Sure, Prime95 Blend may be a great stress tester but if you're crashing and you get a BSOD that relates to your chips voltage, etc that's instability.
post #8 of 11
I had some issues with speed step on my current machine; an old i7, LLC and a bit of v-core is what fixed my instability for me but in all honesty, I can't see that much of a benefit in it. it's pretty rare my computer isn't flat out folding when it's on anyway....
    
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post #9 of 11
From what I have seen this is common to the Asus P67 boards, even tho your stable with Prime95. Expect about once every couple of weeks to get a bsod. I think others have even tried bumping the Vcore up an notch or 2 and it still happens.
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post #10 of 11
Yeah, SB is mostly all about the Vcore. Gotta find the sweet spot.
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