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Gigabyte Z77N / 3570K Over-Clock

post #1 of 4
Thread Starter 
Hello everyone! wave2.gif

After lots of research on which water cooler would be best for my new rig, I discovered that my Z77N motherboard has no vCore control which limits it's over-clocking capabilities significantly. Needless to say, a water cooler seems like a redundant idea given this revelation. I have been able to achieve a modest 4.2GHz over-clock by simply increasing the turbo multiplier, and so far stability has been perfect. Temperatures hover around 80°C at 100% load which is acceptable for an Ivy Bridge unit in my opinion. I have the Node 304 and Vengeance RAM (with huge fins), so air cooler choice is very limited. I have ordered an Akasa K32 which will hopefully reduce the temperature by 10°C or so. It has roughly the same footprint as the stock Intel cooler but a better fan and heatsink design.

http://www.amazon.co.uk/gp/product/B005J2IS3U/

I was wondering though; has anyone had success with bigger over-clocks using this board? If so, I would love to hear about it! I have heard rumour that there is a way to unlock vCore control in the UEFI. Does anyone know anything about this?

Thanks,

Kimmo.

P.S. This thread is related:
http://www.overclock.net/t/1316594/gigabyte-z77n-wifi-h77n-wifi-no-voltage-control-voltage-hard-mod-info-inside
Edited by Kimmo - 8/5/13 at 5:29pm
post #2 of 4
I have the same board and the same proc. I OCed to 4.2ghz and have been perfectly happy with it. Honestly outside of benchmarking I notice no difference between stock clocks and 4.2ghz performance wise.
post #3 of 4
Thread Starter 
Quote:
Originally Posted by eqwoody View Post

I have the same board and the same proc. I OCed to 4.2ghz and have been perfectly happy with it. Honestly outside of benchmarking I notice no difference between stock clocks and 4.2ghz performance wise.

I must admit, it is difficult to appreciate any difference with the 4.2GHz OC. Are you using the stock Intel cooler or did you fit a replacement? What temperatures are you seeing? What case do you have?

Cheers,

K.
post #4 of 4
Thread Starter 
The Akasa K32 cooler arrived today and installation was very straightforward. I just had to un-clip the Intel cooler, clean the thermal paste off the CPU and clip the R32 in. It's about twice as tall as the stock Intel cooler and has a 92mm fan, but crucially it has roughly the same footprint so it fits really well with a few millimetres clearance from the RAM and graphics card. Even without waiting for the pre-applied thermal compound to cure, temperatures have dropped around 10°C at both idle (25°C) and 100% load (65°C). Hopefully they'll drop another 5-10°C after it beds in. I must admit I am happy with this cooling set up. If anyone else has the Z77N board from Gigabyte, my recommendation is to stick with air cooling like this. It's a lot cheaper than a water cooler and with the limited over-clocking options it is a perfectly adequate solution.thumb.gif

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