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A little help/advise for a noob with an i5 3570k overclocking - Page 3

post #21 of 58
Thread Starter 
OK. Let me get my head into that guide you sent.

One last thing...with a decent cooler/fan what clock speed can this processor go to.

Your time and advise is most appriciated. Thanks again
post #22 of 58
Every CPU is diffrent, even if they come from the same batch, i assume a good i5 can hit 4.5-4.6 without stressing itself, but allot more factors kick inafter that
     
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post #23 of 58
You can easily archieve 4,5 Ghz with a nice 30 dollar + cooler. More OC depends mostly on the chip. If you are lucky you can get it up to 4,8 Ghz or maybe 5 Ghz with a really good air cooler or water cooling.

But ratios behind 4,7 - 4,8 Ghz is rare on ivy bridge and the Vcore / temps will be very high.
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post #24 of 58
Here is a recent post about getting near 5.0GHz, this is written by me




After 4.6, every chip starts to needs some serious vCore to get it going, it is breaking a 'Barrier' as it starts to get into 1GHz + from stock. Most chips will stop at about 4.5 - 4.60 due to it simply being too much. A 3770k will problably only need 1.20-1.30 to get to 4.5, if not less, but it will need 1.40-1.5+ to get over the 5.0 barrier.


At 1.45+ the CPU life starts to get shortened, this is due to extreme over-voltage. And the next obstacle is temperature, a 212Evo will get the CPU to 4.5 with reasonable temperatures, but after that the temperatures will rise quickly and you will need a cooler like a H80i, H100i or a Noctura NH-D14 to get near the 4.8-4.8 mark, but to get to 5.0, considering you got a good chip, you will most likely need a custom open-loop water cooler.


Ivy Bridge CPUs also have another thing limiting you, the IHS, or also know as the silver heatsink that is on the top part of the CPU, Intel made poor decision and filled the inside with thermal paste unlike the previous chips which used solder to unite the parts, changing it will let you get to about 4.6+ with much better temperatures as the thermal paste will simply not be good enough to get higher. The only option is delidding your CPU, this is a dangerous action and requires a very still hand, there have been many cases of the person pushing it too far and just make contact with the inside can kill you chip.


But you need a high quality PSU with a bit of headroom to get past 4.7, A 4.8GHz 3770k will pull about 120w depending on the amount of vCore used. That is a bit more than 20w more than the stock 99w, And after that it will only get more power hungry, it will probably pull near 130-145w at 5.0, that is almost 50% more than when we started off at 3.5 .


A good motherboard is also required, cheaper boards pack cheaper VRM's, these are the little capacitors/regulators that feed you chip with the voltage it needs, a better motherboard will require less volts to achieve a certain CPU speed, thus reducing temperatures. Cheaper VRM's tend to overheat and kill the board when the CPU is overvolted, you can see accounts of this happening with lower end MSI motherboards.


I hope you take the above into consideration and also, Sandy Bridge does not need delidding as it uses flux-less solder. But most importantly Every Chip Is Diffrent! Chips from the same batch will always be different, some may get over 4.9+ and some will struggle to hit 4.0, Good luck in making your decision.



Thanks to WR6133 and Twocables To Help me edit This


Sent From My Rooted Galaxy Ace II
     
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post #25 of 58
Thread Starter 
Well at 4.2 ghz at the moment im at 1.2volts and 68c temp playing Far Cry 3 Maxxed. With the standard fan/cooler.

I ran AIDA 64 stress test and got 85c after about 5mins.
post #26 of 58
Its safe to say
you will almost always hit upwards of 4.5ghz if you delid your ivybridge.
You will never know the full potential of your ivybridge unless you have your temperature under control.

For me I wasnt able to overclock stable past 4.8ghz with my CM 212+
However once i switched to my trusty waterloop and delid I was able to Overclock 5.2 Ghz stable and manage to pull off temperatures under 71C

post #27 of 58
I look at it this way.

First (when I overclock for maximum frequency lets say 5ghz 24/7 stable )
I think about the maximum temperature i am comfortable with and not the voltage.
The maximum threshold in temperature for me is 80 degrees. If any of my core reaches 80 degress I bring down the volts down until I hit below 80 degrees.
Most people here will tell you not to exceed over 85 or 90 on ivybridge but i feel that its already too hot once it has hit 80.

Now lets say the theoretically your cpu reaches 80 degrees at 1.40vcore under load. I would then stop right there and see what my maximum frequency i can draw out from that chip using 1.40vcore. Lets say you can get 5ghz at 1.40ghz stable (every chip is different) I would not push more just because I dont want my cpu to ever get too hot.

Too much vcore in your cpu will degrade your cpu but too much vcore coupled with hot cpu will degrade your cpu exponentially.

Then again, ive seen people that has been folding off and on with vcores around 1.45 ~ 1.5 and They have not noticed any degradation. Plus even if the cpu did degrade alittle by the time you use it for 3~4 years, will you not want to switch to the latest and baddest?

This is all definitely up to you.
Meanwhile good luck and feel free to ask questions and im sure people will be happy to answer your questions.
post #28 of 58
Quote:
Originally Posted by marsha11 View Post

Well at 4.2 ghz at the moment im at 1.2volts and 68c temp playing Far Cry 3 Maxxed. With the standard fan/cooler.

I ran AIDA 64 stress test and got 85c after about 5mins.

That's pretty good - I'd be happy with that on the stock cooler. If you want to push a little bit you can pick up a CoolerMaster Hyper 212 EVO for under $30, and that'll pretty easily get you to 4.5 with temps in the 70s.
post #29 of 58
Thread Starter 
Quote:
Originally Posted by Forceman View Post

That's pretty good - I'd be happy with that on the stock cooler. If you want to push a little bit you can pick up a CoolerMaster Hyper 212 EVO for under $30, and that'll pretty easily get you to 4.5 with temps in the 70s.

Sweet...Guys youve been fantastic. Great forum.

Ill get onto getting a better cooler asap.
post #30 of 58
Quote:
Originally Posted by marsha11 View Post

Sweet...Guys youve been fantastic. Great forum.

Ill get onto getting a better cooler asap.

Good choice. Try to get the Coolermaster Hyper Evo 212. Best cooler in that price range!
I´m sure it will drop the temps by 10 - 20°C.
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