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Discussion Starter · #1 ·
Well, I finished testing my 3770k at 4.5ghz and now working on 4.7ghz but after i'm done testing, i think i would like to have it overclocked but I don't need it on Turbo 24/7 all the time, i would like to have 4.5-4.7ghz only in turbo mode, when it's really required for heavy tasks.

How do I do that?
 

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Enable C1E and Enhanced Intel SpeedStep Technology.
 

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And set the Windows Power Plan to Balanced if you don't want CPU-Z to show the CPU at 4.7 all the time (even if it isn't).
 

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Discussion Starter · #4 ·
Will try that tomorrow, when i'll get my hands on that setup.

I don't care what CPU-Z will show
smile.gif
if there is some other software that will show the correct . Is there one?
 

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Discussion Starter · #8 ·
When I enable C1E (Enhanced Intel SpeedStep Technology was ON all the time) I am getting crashes of Crysis 3
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How long can your system run Prime95's Blend test while the CPU is overclocked?
 

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Discussion Starter · #10 ·
Well, it was overnight tests, like 13 hours and such. I was using "In-place large FFTs" testing.
I was doing 3 of such overnight tests as I was trying different voltages
 

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The Large FFTs test is almost worthless for Sandy and Ivy Bridge. This is probably why it's not stable. Try the Blend test.

Better yet, try the Custom Blend test. That way you can tell Prime95 to use about 90% of your memory.

Which version of Prime95 are you using? The only effective versions for Sandy and Ivy Bridge are v27.7 build 2 and 27.9 build 1. These are the only ones that use the AVX instruction set, and that's important.
 

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Discussion Starter · #12 ·
I use 27.9 build 1 version

Can you tell me the numbers I should be using for Custom Test?
 

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Quote:
Originally Posted by CamSpy View Post

I use 27.9 build 1 version

Can you tell me the numbers I should be using for Custom Test?
All you really have to do is open Prime95, select Custom, type in about 90% of your memory in the "Memory to use" field and then click OK (or press Enter).

Tip: Press Esc and then Enter to end the test quickly. ;)
 

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Discussion Starter · #14 ·
If I hit ESC and then Enter, it stops the workers
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Why should I run the test and then stop it?
 

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Quote:
Originally Posted by CamSpy View Post

If I hit ESC and then Enter, it stops the workers
smile.gif
Why should I run the test and then stop it?
I'm just showing you a fast and easy way to stop it. I mean, it's easier than using the mouse. This is also something I discovered accidentally, so I like to tell everyone about it.
 

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You're welcome!
 

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Discussion Starter · #18 ·
OK, I made the testing for more than 18 hours.
Everything seems worked fine, Prime95 didn't crash, CPU-Z and RealTemp either, but i had Win8 warning of low memory to save work and close programs...

I wanted to make a screenshot of these 3 proggies and opened Photoshop, cropped the screenshot and when i hit the save keyboard shortcut Win8 crashed... Probably because I didn't stop the Prime95 workers.

So with this information, what do you say?
 

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Quote:
Originally Posted by CamSpy View Post

OK, I made the testing for more than 18 hours.
Everything seems worked fine, Prime95 didn't crash, CPU-Z and RealTemp either, but i had Win8 warning of low memory to save work and close programs...

I wanted to make a screenshot of these 3 proggies and opened Photoshop, cropped the screenshot and when i hit the save keyboard shortcut Win8 crashed... Probably because I didn't stop the Prime95 workers.

So with this information, what do you say?
I'm not sure, except try Crysis 3 again with C1E enabled. Although, you didn't make any changes, so I doubt it will be any different than last time.
 

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4.5Ghz is a nice balanced overclock, keep in mind that when you push the Vcore past 1.300 that's the point at which the silicon degradation begins. Arguably it won't affect the lifetime of the CPU much as you'll likely upgrade before it dies, however it's worth mentioning.

I'm guessing you're offset overclocking, so make sure you keep an eye on your volts and increase the LLC to compensate for any drooping.
 
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