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3570k Overclock suggestions? - Page 5

post #41 of 80
Ryboto, It does look like there's potential for combining offset and additonal turbo voltage settings to give lowest stable idle while still providing required load voltage. I'm experimenting now at 4.4ghz using the offset value of -.100v that I was using for 4.2, and additional turbo voltage at +.094 to give me load of 1.264v. Idle is .944 minimum.

It's a little annoying that the chip needs an additonal .1v for a 200mhz clock increase (1.168v @ 4.2 to 1.264v @ 4.4), assuming it doesn't fail at this current setting. I don't think I have any more thermal headroom for additional voltage.

Speaking of, it would seem I have some cooling issues as I can't cool at 1.264v with a AXP-140 in a SG05 case as well as I would have expected. Fan on the AXP is a 140x15mm Prolimatech USV 14 in pull and PSU is pull too. I'm hit a max of 92C on one of the cores (albeit the next hottest core is 5C cooler), It's the same core that's a real doozy to stabilize in Prime as well. I used PK-2 TIM and felt the application was good but sheesh. Either this cooler really needs the downward blowing fan or the Prolimatech USV 14 is absolute crap for static pressure. However, I had read a review on it where the guy got the same performance from it as he did a PWM 120x25mm 1000-2000rpm fan with max 70cfm and 3.9mm/H20.
Unfortunately most results/reviews for the AXP-140 were likely using a downdraft non-slim 120mm or 140mm fan. At this point I would be curious what the NT06-Pro with a bottom mount 120x25mm fan with good static pressure could do for me.....perhaps you'd like to trade ryboto;)

Should I be looking at the highest max temp reached by the hottest core in CPUID, or am I concerned more with where the temps spend most of their time, or "settle" at? The max seems to come at less than 10min into prime and then they drop. So how important is this 'early on hot flash'? I certainly see them creep back up towards the max at times, but they are spending most of the time a good amount lower. Granted, there's a ton of flucutation, I'll see low/mid 70's to mid 80's.


Edit
Well, a little over an hour into prime, computer restarted. Checked event warning log and there were whea entries, though prime had no errors. Will bump turbo again but temps will likely prevent moving forward. Looks like I am stuck at 4.2ghz due to a combination of a non ideal overclocking cpu and cooling setup.
Edited by blackplag - 3/10/13 at 5:29pm
    
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post #42 of 80
Thread Starter 
At this point, I'm sold on the NT06. At first I figured it for a poor mans AXP-140, but it seems to be working out well, plus I really never want to have to reassemble this thing. The SG08 has NOTHING on the Lan-Gear prototype mITX case I previously had in regards to layout. That thing was so much easier to assemble. This one requires so much flexing just to fit everything, pretty scary.
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post #43 of 80
I know what you mean about cramped cases. I have to muster all my willpower to crack into mine. If it wasn't so bad, I'd probably break out the yet unused stock cooler and see what it does for temps at my 4.2ghz settings. Obviously it will be noisier, but I'm wondering how the temps will compare, especially under typical loads. It seems pointless to have the axp since I know people can do 4.2 on the stock one. That, or I can hunt down a different 3570k or look for a 3770k in the hopes they could do better with my cooling.
    
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post #44 of 80
Thread Starter 
Should I be happy with 4.5ghz, or should I keep pushing? I think I need to go from 0.055V turbo at 4.5ghz to over 0.08V for 4.6...Puts me into 1.2V+ vcore territory.
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post #45 of 80
Well why the heck not. If you're worrying about the voltage, don't, as long as temps are kept at bay. What is your current voltage for 4.5Ghz? Be prepared for having to bumb the core up by 0.1V from 4.4 to 4.6.
post #46 of 80
Thread Starter 
Quote:
Originally Posted by Fulvin View Post

Well why the heck not. If you're worrying about the voltage, don't, as long as temps are kept at bay. What is your current voltage for 4.5Ghz? Be prepared for having to bumb the core up by 0.1V from 4.4 to 4.6.

Load vcore at 4.5ghz is ~1.18V, turbo offset is +0.055V.
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mitx
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post #47 of 80
That's pretty damn good for those clocks. Either you got a golden chip or you shouldn't trust Asrock's readings. I'm thinking of the latter. For reference, my 3770k needs 1.175V to be stable at 4.2, 1.3V for 4.6, and my 3570k needed 1.22V for 4.4. My results are pretty common, but if your values are correct, you have got a potential 5Ghz candidate in your hands.

This was a CPU-Z measure, right?
post #48 of 80
Thread Starter 
Yea, CPU-Z is reporting that, but it's the same across different software. CPU-Z, Open Hardware Monitor, Speedfan, HWiNFO, and AXTU all report the same vcore. It might be good, but it isn't the best, there's a guy in the OC guide thread that is hitting 4.6ghz with the vcore I need for 4.5ghz.

Anyway, if mine's a 5ghz candidate, that's sweet, I just wonder if I've got the temperature headroom. I saw a peak of 78C with my CPU fan at high speed, and the case fan that feeds it at "low"(this is an SG08, the case fan is 180mm).
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mitx
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post #49 of 80
When running prime, going up to around 90c or so is perfectly fine, since you're not going to see temps like that in normal use. However, you seem to have relatively high temps, so i don't think you will be getting anywhere close to 5Ghz with that cooling. That however doesn't mean you wouldn't have lots of headroom to go from here. If you could somehow cram a AIO water cooling solution in that case it would get you a long way compared to your current cooling, at least. I bet you could get a Antec 620 or the like pretty cheap.
post #50 of 80
Thread Starter 
Best I could do is cram the fan that came with the NT06-Pro in a pull configuration, so I'd have push-pull on the heatsink. There's absolutely no way you'd get me to take that thing out now that it's in. Took me almost 2 hours to install. Everything has to come out, and then I have to cram everything back in.

Plus I'm done spending money on this build unless someone offers me a 3770K for $50. In that case I'd consider updating the cooling.

Looking back at my posts, with my case fan set to low, I was only seeing a high of 75C at 4.5ghz. It was with both fans set to low that I saw 78C peak. I personally never saw the peak temperature, the times I checked on the PC while it was running P95 I only saw highs of 72C.
mitx
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mitx
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