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Old 10-21-2012, 01:59 AM   #16
TobiSGD
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Quote:
Originally Posted by future_computer View Post
Other than stepping up the multiplier figure, the voltage needs to be increased too.
I will search for people's testimony of over-clocking and follow the successful parameters.

Of course, I need water cooling system, not only Fan.
And this will be your first mistake on doing overclocking without learning. No two CPUs and no two mainboards are the same, just copying the BIOS settings won't work and will either bring you a not working overclock, an unstable overclock or a fried machine. You also see the voltage on that CPU reported as over 1.5 volt, definitely not something you want to run 24/7 on your work machine, unless you have the money to replace the CPU when it dies.

Quote:
Some people can reach 5GHz
http://valid.canardpc.com/cache/screenshot/2327915.png
This is mistake number two. The screenshots of CPU-Z on that site are not an indicator for a stable overclock, they just hsow that the PC in question was able to boot up and not to crash until the screenshot was taken. You also see no mentioning of circumstances of the overclock. What cooling system was used (in that range most likely dry ice), what hardware was used (those massive overclocks are usually done with a single 2GB module of RAM, not something you would use as configuration for your everyday machine), ...

Last edited by TobiSGD; 10-21-2012 at 02:01 AM.
 
Old 10-21-2012, 02:22 AM   #17
cascade9
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Quote:
Originally Posted by TobiSGD View Post
You will at least need a high quality mainboard meant for overclocking (price-range 150$+)
To overclock, not really. To even get close to 5GHz, yes.

Quote:
Originally Posted by TobiSGD View Post
a decent cooling system (air cooling will not be sufficient for an overclock in that range)
Not quite, I've heard of people getting 5GHz on air (with i7-2600K/2700Ks, i5-2600Ks, intel x6 i7s and even a few reports with the new AMD A10-5800K). It would be rare, and they would be using top end aircoolers, and I wouldnt be suprised if they were 'validation only' runs (eg, not really a stable overclock, just stable enough to take a CPU-Z screen shot).

Quote:
Originally Posted by TobiSGD View Post
most important, a deep understanding of how the hardware works and how the different components work together.
Not having this knowledge will most likely end with an unstable (and therefore useless) overclock or, worse, you buying new hardware because you fried your machine.
Agreed 100%.

Quote:
Originally Posted by mreff555 View Post
I run a core i7 2600k with a water cooler. The original heat sink was horrible. At idle, it runs just above room temp at idle. Huge improvement.
I spent a long time overclocking slowly so that it didn't exceed the design temp (72C) at room
temp. I didn't get very far despite the water cooling. You should really try to keep your system stable, and unless you plan on playing video games for 10 minutes at a time, you have to.
Oh noes, someone mentioned water. Water cooling is all well and good, if you have a decent system. Most of the kits around are no better than decent aircooling. I doubt that future_computer would be able to assemble a DIY water cooling system that is any good.

Quote:
Originally Posted by mreff555 View Post
if you really want to overclock you are going to need a good motherboard as well as some crazy heat transfer. you should probably look in to a phase changing cooling system. Not cheap for the initial cost or your electric bill.
5GHz on pahse cahnge is easier than 5GHz on water or air...but its so not worth it unless your only goal in life it to have some nasty overclock to impress your friends. Yoyur friends, who you are talking to online because phasechange is noisy.

Its also really expensive ($1000 US+ last I checked) if you buy 'of the shelf' (and as far as I know Asetek VapoChill is well out of production). A DIY phasechange setup is cheaper, but messier. It will require some farily good engineering skills,a dn knowledge of what can go wrong. I've seen a CPU and a few motherboards get killed by condensation

There is also the new 'thermo siphon loop' idea which is at least worth looking at if your into 'extreme' cooling.

Quote:
Originally Posted by future_computer View Post
Other than stepping up the multiplier figure, the voltage needs to be increased too.
I will search for people's testimony of over-clocking and follow the successful parameters.

Of course, I need water cooling system, not only Fan.
No, you dont need water cooling.

If you want to play games (whichy seemed to be your idea from your other thread) you'd do better to spend more on a video card.

For gaming, an overclocked i5/i7 with (for example) a GT640 would run lower framerates than a stock i5/i7 with a GTX 660 (and the differenc between a GT640 and a GTX 660...and once you include the cost of a 'better' motherboard for overclocking, and a good aircooler, running at stock speed with a GTX 660 would be cheaper...

Quote:
Originally Posted by future_computer View Post
Dont trust 'yum-cha' cheap pumps for a $200+ CPU.....

Quote:
Originally Posted by future_computer View Post
Can learn cooling from here
http://www.thermaltakeusa.com/
Oh, yeah, thermaltake! The bestest overclockign company ever!

Quote:
Originally Posted by future_computer View Post
A single CPU-Z screenshot. You have no idea if it was stable, or was even capable of running for longer than 20 seconds.

If you look, its running 1.572v, which is very high for an i7-2600K. People are getting sane (4.5-4.6GHz) overclocks on i7-2600Ks at more like 1.3v, which is far safer.

Quote:
Originally Posted by future_computer View Post
Even Intel teaches you how to overclock:
http://www.intel.com/content/www/us/...rocessors.html
Intel doesnt really 'teach' anything there. If you check, you'll see that intel suggests changing the multi (only possible on expesive 'unlocked' CPUs) and most overclocking sites will use a different method...

Last edited by cascade9; 10-21-2012 at 06:54 AM.
 
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Old 10-21-2012, 08:27 AM   #18
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First off, one thought per post is kinda like one item per bag at the grocery store. Not very efficient and kind of a waste.

second. yes it's possible. but you had better do you your homework on water cooling. you are going to need a very high flux to keep heat to an acceptable amount at 5ghz
 
Old 10-21-2012, 08:44 AM   #19
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I think I will go for fan cooling.
I am not sure how to install water cooling inside the casing?
Would it be very cumbersome?
 
Old 10-21-2012, 09:07 AM   #20
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My goodness, is this a computer?
http://i753.photobucket.com/albums/x...wong/water.jpg
 
Old 10-21-2012, 11:48 AM   #21
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What about this?

http://hardware.slashdot.org/story/1...w-amd?sbsrc=md

For me the high ground power wise is with Intel, because they can manufacture at higher densities. They have the better fab facilities.
 
Old 10-21-2012, 12:08 PM   #22
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Only a few people get water cooling right the first time I'd think. I'd prefer a refrigeration unit.
 
Old 10-21-2012, 08:04 PM   #23
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Today, overclocking can be done in Windows alone, using software?
Does not need bios setting?
 
Old 10-21-2012, 08:07 PM   #24
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Quote:
The average temperature of the Intel core i7 3770k under a full load with default settings was only 54.5 degrees Celsius. Once we started pumping 1.35 Volts through the processor our temperatures increased dramatically, our average temperature across all of the cores was 92.5 Degrees Celsius, and one of the cores was hitting as high as 96 degrees Celsius! The Intel Core i7 2600K was more than 20 degrees Celsius cooler than the Core i7 3770K 'Ivy Bridge' Processor under the same circumstances even though we were running more voltage through it!
http://www.legitreviews.com/images/r...mperatures.jpg

A desktop CPU, usually can withstand how high temperature?
 
Old 10-21-2012, 08:11 PM   #25
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For core i7 3770K, Maximum Operating Temperature=105C
 
Old 10-21-2012, 08:15 PM   #26
TobiSGD
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Quote:
Originally Posted by future_computer View Post
Today, overclocking can be done in Windows alone, using software?
Does not need bios setting?
It can be done, but it is not recommended. Usually overclockers prefer the BIOS method.

Quote:
A desktop CPU, usually can withstand how high temperature?
Depends on the CPU, unanswerable question.
Really, I think I have to repeat that once more: If you don't know what exactly you are doing (and that includes knowing how the hardware works, which advantages and downsides the different methods of overclocking have, ...) don't overclock. In your other thread you are stating that you don't have a big budget for your new machine. Frying your hardware will not help you with that.
 
Old 10-21-2012, 09:04 PM   #27
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Overclock the CPU to be 14% faster should be ok?
3.5GHz --> 4.0GHz

Buy a cool master V8 to cool it.
http://www.overclockersclub.com/reviews/cm_v8/4.htm

Last edited by future_computer; 10-21-2012 at 09:05 PM.
 
Old 10-21-2012, 10:09 PM   #28
TobiSGD
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Quote:
Originally Posted by future_computer View Post
Overclock the CPU to be 14% faster should be ok?
3.5GHz --> 4.0GHz

Buy a cool master V8 to cool it.
http://www.overclockersclub.com/reviews/cm_v8/4.htm
Should be OK. Of course you have to look at the temperatures and run extensive stability tests. Also, keep the voltages as low as possible.
 
Old 10-21-2012, 10:36 PM   #29
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I am not too greedy, 4.0 GHz will satisfy me.
 
Old 10-22-2012, 01:00 AM   #30
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Quote:
Originally Posted by future_computer View Post
For core i7 3770K, Maximum Operating Temperature=105C
Where did you get that number from?

Quote:
Intel® Core™ i7-3770K

TCASE 67.4°C
http://ark.intel.com/products/65523

Of corse, thats a 'TCASE' ('T'eprature of the heatspeader/'CASE') temp, not a core temp. But you'd do best to keep a 3770K at 70-80C _absolute_max_core_temp_ if you want to keep your CPU alive for long.

Quote:
Originally Posted by future_computer View Post
Overclock the CPU to be 14% faster should be ok?
3.5GHz --> 4.0GHz

Buy a cool master V8 to cool it.
http://www.overclockersclub.com/reviews/cm_v8/4.htm
14% increase in clock speed is not 14% faster. Maybe 5% faster if you are lucky. Its not worth it to overclock a brand new CPU which should do anything an everything you want 'out of th box'. Why risk CPU damage for a 5% increase in speed you will never notice?

BTW, the i7-3770K is not worth it for gaming or general use. The i5-3570K is about 2/3s the cost, and just as fast for gaming and general use.
 
  


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