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3570K @ 4.3Ghz Prime95 1hr

post #1 of 18
Thread Starter 
CPU cooling loop only, XSPC RX120 & XSPC EX240
My IB 3570k @ 4.3Ghz (letting it pull as much V as it wants ~1.36v)

I'm going to start dialing it in with less voltage and get it as low as possible + stable. When I boost to 4.4Ghz it gets jumps in temp hot quick but I think that's mostly because of it auto dialing voltage. It's like 4.1Ghz barely hit 55, 4.2Ghz @ 59*c, here I'm hitting 65, but then 4.4Ghz jumps to 78*c!

post #2 of 18
IB do run hot. Intel used TIM and not solder on the die so I just cant get the heat to the IHS . Try to use manual vcore it is better for temps. 78 is a bit high for 4.4 but that is as a result of vcore. Below is a table I did of what my chip takes to pass IBT . Not stable but min vcore for IBT. Ignore temps as it is delided The 5.1 is stable . Stuff.png

If you want low temps you will have to delid the chip. Set manual vcore to 1.25 V and multi to 4.5 and test . If stable up multi and retest . If temps allow up vcore and multi and so on. You will hit a wall at some point , then you back down one and you have a 24/7 OC thumb.gif
Edited by martinhal - 3/6/13 at 10:28am
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post #3 of 18
Thread Starter 
yah I've read all about that too. I'm going to delid this thing soon. I'm thinking about getting some different TIM before I do it though. I've seen some stuff with slightly better delta than the Arctic Silver 5. But the AS5 isn't bad either, especially compared to stock. I may just go for it this weekend with the gram of AS5 I have left over. What are you using?

Thanks for the input!
post #4 of 18
You're letting it pull way too much and limiting your clock speeds.
www.overclock.net/t/1247413/ivy-bridge-overclocking-guide-with-ln2-guide-at-the-end/0_100
Quote:
We can see that not only is the temperature decrease having a great effect on the power consumption (representative of leakage), but also an exponential one, as at around -60C on both runs we see a leveling off of the power consumption. However as the temperature rises the increase in power is much more than it is when the temperature is lower. This confirms that the leakage on this CPU is very heavy, we can also see that the leakage is being decreased exponentially as we decrease the temperature.

So how can this help me OC? Well keep this in mind, for every degree you can reduce the temperature of Ivy you are decreasing the leakage at a faster rate than at the degree above it, when you do this you are increasing your opportunity for higher frequency at a much faster rate. So always keep pushing at better temperatures, with Ivy Bridge EVERY degree counts more than the degree above it. At around -60C this effect subsides, so phase change would be a point at which the power scaling starts to end.
post #5 of 18
See the Delided thread in my sig. Coollaboratory Liquid Pro on the Die>IHS and Coollaboratory Liquid Ultra on IHS > Waterblock.. CLP/U is the only thing that works on die , top of IHS any good TIM will work.



You can see what is said in the above post , see how my temps start to climb after 1.3 V
Edited by martinhal - 3/6/13 at 10:41am
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post #6 of 18
Yup, they do get pretty hot (more than Sandybridge). Here's my results for a 4.5Ghz overclock under water. The build is in my sig.

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post #7 of 18
Thread Starter 
Quote:
Originally Posted by FlashFir View Post

You're letting it pull way too much and limiting your clock speeds.
www.overclock.net/t/1247413/ivy-bridge-overclocking-guide-with-ln2-guide-at-the-end/0_100

So what you're saying there is that, as temperature increases, so does the resistance of the die and it responds by adding more voltage to compensate which only compounds the problem? Right?
post #8 of 18
Essentially. So your best bet is to do it the old school way. Slowly and methodically. Start with the low stock voltage up clock, instable, up VCore until you hit your limit or an absurd VCore like 1.4~ you should max out around 1.3...
post #9 of 18
Quote:
Originally Posted by IntelFanaTEK View Post

So what you're saying there is that, as temperature increases, so does the resistance of the die and it responds by adding more voltage to compensate which only compounds the problem? Right?

Spot on
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post #10 of 18
Thread Starter 
Quote:
Originally Posted by FlashFir View Post

Essentially. So your best bet is to do it the old school way. Slowly and methodically. Start with the low stock voltage up clock, instable, up VCore until you hit your limit or an absurd VCore like 1.4~ you should max out around 1.3...

Yup, gotcha. That's kind of what I planned on doing. Can I start @ 4.1 or so and just bump the vcore into the neighborhood, then test stability and work my way up from there? Or do you really think I need to start from 3.6?
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