Can I overclock i7-3770 non K Cpu on Gigabyte Z77-DS3H Motherboard

Vana Ivan Pandovski · Nov 1, 2018

Hello I am wondering if I can overclock a non-K i7-3770 CPU on Gigabyte Z77-DS3H mobo, I have seen people overclocking this CPU on these motherboards, but not much the Turbo Boost on this CPU is 3.9Ghz and the stock clock is 3.4Ghz, so I am talking about small OC like to 4.2ghz or 4.1Ghz either on 2 cores or all 4 cores. So I want to consolidate with you guys experts here for sure because I have an option to do this and I really want to know if I can do it and how much can I push it.

Motherboard link: https://www.gigabyte.com/us/Motherboard/GA-Z77-DS3H-rev-11#ov

ChumP · Nov 1, 2018

In the case of non-k series CPUs the multiplier will be locked.

The only way to OC that CPU, just a little bit, is through raising the BCLK, but you can run into issues with it... I won't recommend it. You can try it nonetheless.

Also you shouldn't touch voltages.
Performance gains are minimal anyways.

Vana Ivan Pandovski · Nov 1, 2018

ChumP :

But people have overclocked it even to 4.3Ghz and its stable, that's what I am wondering, and actually, they get some performance but not much.

ChumP · Nov 1, 2018

You could try it, but as you said performance benefits are minimal.

pistolpete69 · Nov 1, 2018

I respectfully disagree with the other response.
In my experience, I have had no issues changing the turbo multiplier up to 4 bins over stock on i5-2400, and i7-2600's when using a Z77/Z68/P67 board. So I think you should be able to take it to 4.3 easily(39 max turbo multiplier +4 = 43 multiplier), without touching the b clock or voltages if you don't want to.
Depending on your cooling you may want to play around with voltages to lower temperatures, as the auto setting is usually pretty generous when it comes to voltage. Small changes to the bclck can work as well, but as mentioned it is less stable. That said I was running my 2600 non k at 4.3 for some time with no issues but your mileage may vary, definitely start with the multiplier. (I would start small, something like 3.9 stock -> 4.3 ghz with multiplier, 4.3 x 1.025 base clock = 4.4 ghz)

As far as I know this is only available on 1155 chips, and I know some boards didn't support it, but I was able to on my Gigabyte Z68 board so I think it's worth a shot to adjust the turbo multiplier. Going from 3.9 to 4.3 isn't anything revolutionary but you will see some small FPS boosts if you're currently CPU bottlenecked.

tennis2 · Nov 16, 2018

As pistolpete69 stated, up through Ivy Bridge, you could increase the multiplier by up to 4 on non-K CPUs using a Z-series mobo. Other things to enable are Multi-Core-Enhancement (MCE) which would lock the all-core multiplier at the max for a single core, so technically you should be able to get it going at 4.3GHz all-core (3.9GHz with MCE + 400MHz on multiplier).

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Can I overclock i7-3770 non K Cpu on Gigabyte Z77-DS3H Motherboard

Vana Ivan Pandovski

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Vana Ivan Pandovski

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