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OC to 3.8 GHz?

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April 16, 2010 7:53:29 PM

Would I be at safe temps with an i7 860 with Cooler Master Hyper 212+ in a HAF 922 case at 3.6-3.8 GHz?

I'm new to over-clocking, and I'm not sure if this would be easily achievable.

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April 16, 2010 8:25:48 PM

chiefsfan27129 said:
Would I be at safe temps with an i7 860 with Cooler Master Hyper 212+ in a HAF 922 case at 3.6-3.8 GHz?

I'm new to over-clocking, and I'm not sure if this would be easily achievable.



I see no reason why not. The HAF series of cases have excellent airflow and 3.6 to 3.8 is really only a moderate overclock for that CPU.
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April 16, 2010 11:09:51 PM

If you don't do anything to cpu intensive like gaming, rendering, encoding, etc. you should be fine. The 212+ is a budget cooler and can't handle the 4c/8t of the i7's, if you want to run it as a quad and disable hyperthreading it would be fine but with HT enabled it would be a gamble at best.

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April 17, 2010 1:41:56 AM

RJR said:
If you don't do anything to cpu intensive like gaming, rendering, encoding, etc. you should be fine. The 212+ is a budget cooler and can't handle the 4c/8t of the i7's, if you want to run it as a quad and disable hyperthreading it would be fine but with HT enabled it would be a gamble at best.


Do you have any temps with 8 threads to prove that? Because that's the first time I've heard of a dramatic increase (to unsafe levels) in temp over just a 4 core.

Am I wrong in assuming that the general consensus on that cpu cooler (with arctic silver 5 thermal compound), is that 3.8GHz is well within reach with my setup?
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April 17, 2010 2:00:08 AM

I've found that HT adds around 10C to load temperatures for me at 3.8GHz. I've got a Xeon X3440 (starts at 2.5GHz instead of 2.8Ghz like the i7 860, so my temps may vary slightly) under a Corsair H50, with 1.2v going to the CPU.
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April 17, 2010 2:03:22 AM

It's completely up to you, I have a 212+ sitting on table behind me right now that I removed after two weeks of getting it. It was all I could get when the 1156's launched and it didn't cut it temp wise when OCing. Your temps will drop approx 10c when you disable HT and if you buy a cooler that is border line on temps that could be the difference. If you want to see the difference W/WO ht enabled I can do that for you, but, like I said I don't have the 212+ installed anymore, it would be with a Mega Shadow.

Edit: geeze, I know I'm an old man, but jedi beat me to the post by 3 minutes, I need to learn how to type.
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April 17, 2010 3:04:56 AM

I wasn't doubting a 10C difference with HT, I was just saying that if the temp was close enough for a 10 degree increase to make the max temp unsafe, I probably wouldn't want to use whatever cooler was getting those results anyway.

In other words, if I'm gonna be within 10C of too high with HT off with the 212+, I want to go a different route for my CPU cooler.

My goal is to keep max temp below 75C under full load.

So with HT off, will the 212+ keep the 860 below 65C under full load for an hour or more?
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April 17, 2010 3:58:49 AM

Don't worry about the full load temps!

You will never see such high core temps in daily usage.
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April 17, 2010 5:37:22 AM

Look it is not the best cooler ever or anything but it is better than stock. Andy5174 is right in that you will never see those temps in daily usage and RJR is right in that its a mid tier unit that will not allow you to utilize the full potential of the chip.
If you want to max it out get a better cooler..... if you want a decent daily overclock I think it will be fine.
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April 17, 2010 2:04:20 PM

Thanks for all the info guys.

I'm really just wondering if the 212+ can get me to 3.8 GHz with HT on.
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April 17, 2010 5:33:48 PM

chiefsfan27129 said:
I'm really just wondering if the 212+ can get me to 3.8 GHz with HT on.

Your right on the bleeding edge if you want to OC to 3.8 W/HT enabled. You might be able to, but there are too many variables to say for sure. How well your cpu OC's, case airflow, ambient temperature, etc. etc. At the very best it would be cutting it close, I personally like to have a little wiggle room. What ever you decide, good luck.
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April 17, 2010 5:58:10 PM

RJR said:
Your right on the bleeding edge if you want to OC to 3.8 W/HT enabled. You might be able to, but there are too many variables to say for sure. How well your cpu OC's, case airflow, ambient temperature, etc. etc. At the very best it would be cutting it close, I personally like to have a little wiggle room. What ever you decide, good luck.


Good to know.

Just curious though, what would likely give me wiggle room? Maybe 3.2-3.4?

I know there are differing variables, like you said, but on average, would 3.4 be safe (with wiggle room) in my case with my cooler?
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April 17, 2010 7:15:55 PM

The Haf 922 case has about the same airflow as mine(maybe slightly better). I'm still on the stock intel heatsink :pfff:  . I can still overclock my i7 920 C0 to 3.0ghz with about 63C on the highest core in prime 95. You should be able to reach 3.6ghz with that cooler.
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April 17, 2010 9:56:14 PM

Especially if his is a D0, they overclock better in the dame thermal envelope.
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April 19, 2010 7:11:11 PM

Best answer selected by chiefsfan27129.
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