Overclock Intel i7-3770 on DZ77RE-75K help

[Mohamed Attar]

My PC Specs:
CPU: Intel i7-3770 3.9MHz by default
Motherboard: Intel DZ77RE-75K
RAM: Corsair 16GB (8x2) 2400MHz
VGA: EVGA NVIDIA 770 GTX 2GB
HDD: Sandisk SSD 128GB

I want to overclock my CPU to 4.2 or 4.5 but i read many guides since my CPU is not K version that i may not overclock or overclock may not work or damage my CPU
can someone guide me how to overclock it to 4.2 or even 4.5 if possible
because i saw in visual bios many options that i cant play with it

 

[dominirican3351]

with a non k chip at most 200mhz overclocking headroom not worth it because you can damage the cpu easily. Unfortunately 4.2 to 4.5 are average oc for the k version of the chip, if you want to oc you would need a new k cpu

 

[Mohamed Attar]

with a non k chip at most 200mhz overclocking headroom not worth it because you can damage the cpu easily. Unfortunately 4.2 to 4.5 are average oc for the k version of the chip, if you want to oc you would need a new k cpu

so i cant overclock it from 3.9 to 4.2 ?

 

[dominirican3351]

3.9 is the turbo boost speed not the base speed which is 3.4 . The way turbo boost works is it downclocks cores that are not used then speeds up the cores that are being heavily used. It boosts up to 3.9 not 3.9 this means depending on the load it could boost from 3.4 to 3.7 or 3.723 the max though is 3.9

 

[slyu9213]

If your motherboard allows you may be able to OC all four cores to 3.9GHz. I don't know the precise method to do it but it works and several people do that with the locked Sandy Bridge and Ivy Bridge processors. But you won't be able to achieve 4.2GHz without messing with the BCLK which is not recommended because it will make things unstable.

 

[Mohamed Attar]

3.9 is the turbo boost speed not the base speed which is 3.4 . The way turbo boost works is it downclocks cores that are not used then speeds up the cores that are being heavily used. It boosts up to 3.9 not 3.9 this means depending on the load it could boost from 3.4 to 3.7 or 3.723 the max though is 3.9

i went to bios and change 1-4 turbo ratio from 39 to 42 and i check in windows experience index it went from 7.7 to 7.8
does that mean it works?

 

[dominirican3351]

3.9 is the turbo boost speed not the base speed which is 3.4 . The way turbo boost works is it downclocks cores that are not used then speeds up the cores that are being heavily used. It boosts up to 3.9 not 3.9 this means depending on the load it could boost from 3.4 to 3.7 or 3.723 the max though is 3.9

i went to bios and change 1-4 turbo ratio from 39 to 42 and i check in windows experience index it went from 7.7 to 7.8
does that mean it works?

The only way to know is to run a stress test such as intel burn test and or prime 95.

 

[Mohamed Attar]

3.9 is the turbo boost speed not the base speed which is 3.4 . The way turbo boost works is it downclocks cores that are not used then speeds up the cores that are being heavily used. It boosts up to 3.9 not 3.9 this means depending on the load it could boost from 3.4 to 3.7 or 3.723 the max though is 3.9

i went to bios and change 1-4 turbo ratio from 39 to 42 and i check in windows experience index it went from 7.7 to 7.8
does that mean it works?

The only way to know is to run a stress test such as intel burn test and or prime 95.

Heres the test though i dont know what it means
is it ok ?

 

[LookItsRain]

You cant overclock a non k series. No matter what bios or software will tell you, it wont apply the settings you see. You can change the base clock frequency but then your system will be unstable.

 

[slyu9213]

3.9 is the turbo boost speed not the base speed which is 3.4 . The way turbo boost works is it downclocks cores that are not used then speeds up the cores that are being heavily used. It boosts up to 3.9 not 3.9 this means depending on the load it could boost from 3.4 to 3.7 or 3.723 the max though is 3.9

i went to bios and change 1-4 turbo ratio from 39 to 42 and i check in windows experience index it went from 7.7 to 7.8
does that mean it works?

The only way to know is to run a stress test such as intel burn test and or prime 95.

Heres the test though i dont know what it means
is it ok ?

We need a screenshot of what the 'clock' tab says on the speedfan. Take a screenshot of the 'clock' tab while you're running the intelburntest. If all 4 cores (8 threads) are at 4.2GHz when being stressed then you probably succesfully have it clocked at 4.2GHz. If it's 3.9 GHz then that is probably the max clock possible.

 

[Mohamed Attar]

3.9 is the turbo boost speed not the base speed which is 3.4 . The way turbo boost works is it downclocks cores that are not used then speeds up the cores that are being heavily used. It boosts up to 3.9 not 3.9 this means depending on the load it could boost from 3.4 to 3.7 or 3.723 the max though is 3.9

i went to bios and change 1-4 turbo ratio from 39 to 42 and i check in windows experience index it went from 7.7 to 7.8
does that mean it works?

The only way to know is to run a stress test such as intel burn test and or prime 95.

Heres the test though i dont know what it means
is it ok ?

We need a screenshot of what the 'clock' tab says on the speedfan. Take a screenshot of the 'clock' tab while you're running the intelburntest. If all 4 cores (8 threads) are at 4.2GHz when being stressed then you probably succesfully have it clocked at 4.2GHz. If it's 3.9 GHz then that is probably the max clock possible.

In clock tab there is no Intel motherboard there
besides i ran IntelBurnTest at maximum stress and it gave me all is stable but i forget to take screenshot
that means my cpu is stable right?

 

[slyu9213]

I believe it is stable but I don't know for sure. It seems like the test didn't last that long as it's only 157 seconds. Maybe someone who use IntelBurnTest will tell you.

 

[Mohamed Attar]

I believe it is stable but I don't know for sure. It seems like the test didn't last that long as it's only 157 seconds. Maybe someone who use IntelBurnTest will tell you.

The BLCK overclock works fine though its not a real overclock but at least i get 5% speed up
Im not getting a 3rd generation K processor just to overclock it on my older one, because i will buy newer gaming pc
now i got better knowledge about K and non-K processor didnt had a single idea about that lol

 

[Mohamed Attar]

I Manage to overclock using BLCK to 4.5GHz heres the test result using PerformanceTest which there is obviously some slightly improvments



Hope who google for an answere that this would be helpful
GET K-SKU PROCESSOR AS WHAT dominirican3351 SAID THX

 

[slyu9213]

I'm glad you found a solution and gained knowledge. As far as BCLK OCing try not to raise BCLK over 103 as it is known that BCLK OCing is highly unstable and beyond 103 can make your PC data become corrupt due to everything running faster than what they were meant for.

 

[Mohamed Attar]

I'm glad you found a solution and gained knowledge. As far as BCLK OCing try not to raise BCLK over 103 as it is known that BCLK OCing is highly unstable and beyond 103 can make your PC data become corrupt due to everything running faster than what they were meant for.

check here i didnt change "Host clock frequency" just the 4 core rate only