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something throttling my sandy bridge, help!

post #1 of 87
Thread Starter 
I need some help overclocking my 2600K

I've set multiplier to 44 and voltage to 1.300V, and RAM on XMP profile (1600MHz, 1.65V)

but no mather what test i run (intel burn on maximum), frequency wont run at overclocked, but on something like 3.5 or 3.8GHz

and this also happens if it's OC-ed only on 4GHz

temperature doesn't go over 65 degrees on 4.4GHz OC with maximum intel burn test

what is throttling this? speedstep?
Edited by Sharky[SVN] - 5/8/11 at 9:24am
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post #2 of 87
Did you try running prime95? Ive noticed when i run IBT, my clocks change and arent maxed out all the time. During prime 95, they stay at there overclocked rate 100% of the time.
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post #3 of 87
Thread Starter 
yes, same with Prime95
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post #4 of 87
Quote:
Originally Posted by Sharky[SVN] View Post
yes, same with Prime95
hmmm....im new to intel overclocking, so maybe someone with more experience can help. Did you try disabling your turbo clock and just let it run off your multiplier clock?
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post #5 of 87
Thread Starter 
Is it because of Core Current Limit? It's set to 98A by default
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post #6 of 87
In the BIOS make sure Turbo, C1E and Speedstep are disabled. Also you need to tune down the voltage on your RAM - SB boards are designed to operate at 1.5V. I have my XMP active at 1.5V so you should be fine.
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post #7 of 87
Thread Starter 
If I disable Speedstep my mobo automaticly disables Turbo boost technology and C state with it and disables option to change any multiplier settings...
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post #8 of 87
Quote:
Originally Posted by Sharky[SVN] View Post
If I disable Speedstep my mobo automaticly disables Turbo boost technology and C state with it and disables option to change any multiplier settings...
Yeah because by default the native way to overclock Sandybridge is using Turbo.
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post #9 of 87
Does your Cpu frequency varies when you run prime?
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post #10 of 87
Search EIST in your bios and disable it.
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