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OC the noob way, is it ok?

812 Views 15 Replies 9 Participants Last post by  DJZeratul
I have an I7-920 with a Noctua N-U12P in push/pull.
I used ASUS CPU level up to 3.2GHz
On idle(itunes+FF) Coretemp says between 40-45c Asus PC probe says 36c
On load(Prime95 Max heat test) CT says between 68-74c PC Probe says 63c

Attached is a CPUz screenshot (Validator returns an error)

What can I do to lower my temps?
LL
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Those are really high temperatures. I'd try and reseat your cooler. You definitely don't want your chip running that hot.
Your CPU voltage is too high for an overclock of only 3.2Ghz. Lower the voltage to 1.2v and test for stability.
I probably should clarify, that load temp was on P95 Large FFT test for Maximum heat
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Originally Posted by Extreme Newbie
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Your CPU voltage is too high for an overclock of only 3.2Ghz. Lower the voltage to 1.2v and test for stability.

would that drop the temps any?
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Originally Posted by Megas3300
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would that drop the temps any?

Should drop them a little at least since it's the volt that stands for most of the heat generated...
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Originally Posted by Megas3300
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would that drop the temps any?

Yes, probably quite a bit (as long as it's stable, and it should be)
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You need to reseat your cooler. No way the noctua should be getting temps that high. Also, use Small FFTs if you want to get the CPU hot, not large.
Run small FFTs and lower your voltage.
Use small fft's for the cpu, and yes dropping the voltage should show a noticeable drop in temps. Try re seating the cooler though because those temps still seem a bit high.
if you used the ASUS OC tool you most likely have CPU Voltage set to Auto. Go into the BIOS and adjust your BCLK to match your multiplier to hit 3.2 GHz, and for CPU Voltage try around 1.2-1.2125 or maybe a little higher but not much more (1 notch [.0125v] higher or so)

for the thermal paste, try mimicking the intel bundled cooler pattern. I tried it and my temps dropped heavily.
I somehow end up using to much TIM every time I apply it. I will f.ind a way to reapply.

I did drop to 1.220v this morning and am running some short P95 Large FFT tests before it's off to school.

I think the voltage drop took off 7-8c if my math is correct.

@DJZeratul, what are your temps?

edit: With the V drop I get (Coretemp/PC Probe)
Idle-(38/35c)
Load-(68/61c)
3
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Originally Posted by Megas3300
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@DJZeratul, what are your temps?

66C-64C-63C-62C in OCCT / Prime Small FFTs

62C-63C-62C-61C while folding on all 4 cores

35C-35C-36C-37C idle

1.3125V, 4.0 GHz (20 MULT x 200 BCLK)

Cooler Master V8 with Silverstone 108CFM fan replacement

on the Thermal Paste I did what intel did and made very thin lines in a "hexagon shape" on the chip surface... Heres a quick diagram in paint




red lines are where you put the thermal paste. the gold spraypaint is supposed to be those copper pads on the top of the chip. the indent is there on the bottom. the blue outline is approximately where the die is underneath the IHS.

the lines of AS5 are about the thickness of a 0.5mm pencil lead. dont flatten them, your heatsink will do that when you mount it correctly. make sure when you mount it, it distributes even pressure, so if you have a bolt thru kit tighten the screws in a cross pattern, if its clips do the clips diagonally.
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Ok, +rep, but a couple questions.

The way Noctua does the hold down is they have two screw nuts one on each of the long sides of the HS. How do I manage that?

I have The Noctua TIM and some MX2, which should I use?
Quote:

Originally Posted by Megas3300 View Post
Ok, +rep, but a couple questions.

The way Noctua does the hold down is they have two screw nuts one on each of the long sides of the HS. How do I manage that?

I have The Noctua TIM and some MX2, which should I use?
Tighten each side one rotation at a time, so it goes down evenly.

MX2 is a bit better than the Noctua TIM.
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Originally Posted by Megas3300
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Ok, +rep, but a couple questions.

The way Noctua does the hold down is they have two screw nuts one on each of the long sides of the HS. How do I manage that?

I have The Noctua TIM and some MX2, which should I use?

ok when you place the heatsink down on the cpu, make sure it goes down evenly on a flat surface. then with slight pressure, rotate the heatsink about 5 degrees in each direction and rest it in its correct position. Then as ljason8eg said, tighten each screw a half turn or a turn on each side until its completely tightened.

And yeah, definitely use the MX2
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