To all the i7 crunchers out there...

What clock speed is your i7 running at? (What model is it also?) What is preventing you from going higher? How are you temps and what CPU cooler/fan system are you using?

Personally, I've got a 3.78GHz clock on my i7 920... temps running at 62-68C full load. Nothing is preventing me from going higher... I just found a nice (reasonably) stable point and I'm happy with it. Running a TR U120E 1366RT w/ Scythe Ultra KAZE 3000rpm 133.5cfm 120mm fan.

If I dedicated some time, I think I could get past the 4GHz mark - perhaps a little hot on temperatures though.

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- Luke.

i7 CPU 950
3.07 GHz stock
4.16 GHz overclocked
Water cooled with a 1/5 hp aquarium chiller in line.
The only thing preventing me from going higher is the 145 watts the CPU is consuming will overheat the cooling fluid. A bigget chiller will fix that next year.
Full load is about 60°C.

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Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
GPUUG Website

i7 920
Running at 4033 atm, but I "sank" it today(put water cooling), so I'm goin' up finally, in most loud silence I ever had :) I can hear aliens speaking... :)

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I have one at stock cooler/voltage running at 3800mhz, very happy with it, and I have one with a good cooler/+0,070v ronning at 3600mhz. What prevents me to go further is I already lost one i7 920 pushing it too high. And im very sorry to say that I just kill one of my new i5s running it at stock cooler/3600mhz because I didnt realize that my ASUS board kick the voltage up at time to prevent it. Just after windows was instaled, it dies.... :(
The other i5 i have is at 3500mhz with stock cooler, 53°C, undervolted at 1,12v
So.... do not start that cpu units until you are sure you are safe with voltage/temperature....

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3548 on my 920....
4186 on the Frozen One.

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

Luke, nice oc & temps. Do you know how many watts you rigs eating at the plug?

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Luke, nice oc & temps. Do you know how many watts you rigs eating at the plug?

Not sure exactly... my PSU is 750W - I'd guess about 450-500W with GPU/CPU @ full speed crunching, cold cathodes on, and all the fans.

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- Luke.

Luke, nice oc & temps. Do you know how many watts you rigs eating at the plug?

Not sure exactly... my PSU is 750W - I'd guess about 450-500W with GPU/CPU @ full speed crunching, cold cathodes on, and all the fans.

Get a freakin' Killawatt.

My top 2 rigs live on them.

I know every minute what they are doing, or not.

It's so silly simple........if I see the watts drop, I know something is amiss.

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

Luke, nice oc & temps. Do you know how many watts you rigs eating at the plug?

Not sure exactly... my PSU is 750W - I'd guess about 450-500W with GPU/CPU @ full speed crunching, cold cathodes on, and all the fans.

Get a freakin' Killawatt.

My top 2 rigs live on them.

I know every minute what they are doing, or not.

It's so silly simple........if I see the watts drop, I know something is amiss.

I can't find any in NZ.
And I can't use the ones from USA since you folks have different wirings.

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- Luke.

Have a look here Luke

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Have a look here Luke

Thanks Jarod - didn't think about looking at jaycar... I simply use pricespy to find the cheapest electronic equipment.

But I think this who killawatt discussion is superfluous to the fact that I plan on building a 500-1200W wind turbine - won't need to monitor my electricity bill from meridian much longer! :D

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- Luke.

But I think this who killawatt discussion is superfluous to the fact that I plan on building a 500-1200W wind turbine - won't need to monitor my electricity bill from meridian much longer! :D

You are welcome. Good luck with wind mill build

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But I think this who killawatt discussion is superfluous to the fact that I plan on building a 500-1200W wind turbine - won't need to monitor my electricity bill from meridian much longer! :D

You are welcome. Good luck with wind mill build

Thanks friend...

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- Luke.

Have a look here Luke

Thanks Jarod - didn't think about looking at jaycar... I simply use pricespy to find the cheapest electronic equipment.

But I think this who killawatt discussion is superfluous to the fact that I plan on building a 500-1200W wind turbine - won't need to monitor my electricity bill from meridian much longer! :D

I thought about it years ago, but local codes prohibited it.

Damn idiots.

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

Have a look here Luke

Thanks Jarod - didn't think about looking at jaycar... I simply use pricespy to find the cheapest electronic equipment.

But I think this who killawatt discussion is superfluous to the fact that I plan on building a 500-1200W wind turbine - won't need to monitor my electricity bill from meridian much longer! :D

I thought about it years ago, but local codes prohibited it.

Damn idiots.

I'm going with the 'screw the resource consent & regulations' idea.
Considering the way my property is located and oriented, no one is going to see it - I live in an urban area, but the views make it look rural.

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- Luke.

They just should encourage citizens, to use sunpanels and windturbines, too.
They also come in smaller size ;-)
But, same here, Holland, RULES, rules, rules, € & € ($)

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My i7 920 is stock 2.67GHZ running stock fans at 51 to 53 C across the 4 cores. Dont know the watts as I dont have a killowatt yet.

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[/quote]

Old James

i7-920 @ 4.00 on water
i7-975 @ 4.00 on water
i7-920 stock (media pc and only running 6 threads on the cpu)

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i920 @ 3.8ghz (on air) 3.96 on cool days. I am limited by memory speed and not cpu.

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just change the ratio then :)

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