Overclocking the 990X with COOLIT ECO A.L.C

[halox]

I was wondering what people had got out of the above set up with overclocking. I have this set up and at the moment have no intention of overclocking it as it copes easily with anything I throw at it. More for future reference.

Cheers.

 

[Meds]

I agree with you, with the spec you have there is absolutely no need to overclock your PC! However, for your reference we sell the i7-990X @ 4.2GHz on our overclocked PCs.

 

[halox]

Thanks, good to know although hopefully by the time I need to do that I will be an old man. Still young just now by the way.

 

[halox]

Saying that you have me interested. What are the bias settings you use for the 4.2GHz overclock?

 

[halox]

I just checked my core temperatures with Prime 95. All my settings are default and the maximum core temperature after 20 minutes was 75°C. That is about as high as I would like to take the temperature. How could I overclock this and get reasonable temperatures as I didn't expect such high temperatures with standard settings.

 

[Gorman]

The flagship I7 CPU can easily be taken 10-15c higher then that sustained and be absolutely fine.

 

[halox]

Still, does that not seem a little high? A temperature (75°C) for default settings and liquid cooling?

 

[Gorman]

The Coolit Eco's are good but can only really be compared to a high end air cooler. The self contained units cant match a proper custom loop!

75C under load isnt that high for an I7.

 

[halox]

So you are saying if I chose to overclock and could sustain a temperature of 90°C under full load then that would be acceptable? How do PC Specialist clock their 4.2GHz PC's? They must have a benchmark and tweak it from there to stabilise it. What is the benchmark they use for 990x on a P6X58D-E (my spec)?

 

[Gorman]

We apply the clock and then generally prime it to see what temps we get.

Once we are happy with the clock it goes through the usual testing suite.

A clock that reached 90 on load on an I7 would be acceptable to me sure.

Remember we are talking Intel here and a flagship I7 at that, this is no AMD chip which will fry itself at 70c, its made of the proper stuff and as an x version is the highest rated from any particular batch. It can take a lot of stick heat wise and likes it.

 

[halox]

Thanks for the great info. Is there a particular bus frequency and multiplier you choose? Also do you change the voltage or leave it as Auto?

 

[Gorman]

Each chip is different and we tweak a baseline of settings, for the 990x its