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Discussion Starter · #1 ·
Hello Overclock.net,

I made a account to ask for some advise on overclocking my intel i5 3570k.
On my previous computer I used to overclock my e8400k (from 3ghz to 4ghz), because my PC was getting quite hot I decided to get a zalman CNPS9500AT cooler.
I bought a new computer last year and decided to mount my zalman on the 3570k

Now I want to start overclocking my 3570k, but I am a little bit worried about the temperatures.
I've made a screenshots which will show the temperature (under heavy load) for the stock frequentie.


Link to original image: Click me!

I am targetting a overclock to 4.4ghz, do you guys think this is safe with the temperatures shown above?

~ Archcry
 

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sorry man but i clicked on that screen shot and its tiny what are your temps?

also, what is your Vcore? (the volts to the cpu)
 

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I can see high sixties and low seventies. Your CPU can withstand up to 105 degrees celsius before kicking the bucket so as long as you are below 90, it's safe to say that you are fine. The only thing i'd worry about now is overclock stability.
 

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Discussion Starter · #5 ·
Quote:
Originally Posted by looniam View Post

sorry man but i clicked on that screen shot and its tiny what are your temps?

also, what is your Vcore? (the volts to the cpu)
I think you mean the voltage shown in CPU-Z "Core Voltage"?
CPU-Z shows it is 1.080 at max load.
 

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Quote:
Originally Posted by Archcry View Post

Ye sorry, I noticed but I had to eat, better screenshot will be up in a minute or so.

Edit: This should do the trick!
Edit2: Added my rig to my signature
thanks for that
thumb.gif


aside from one "warmer" core - which is no big deal- low 60s is great. 1.08 vcore (but check the bios, cpu-z doesn't always report correctly) is nice. keeping the voltage down along with a good heat-sink is very influential. but i think you can safely say your heat-sink is working.

hitting 4.4ghz with 1.2v (or less) @ 75c would be excellent! but that all depends on the chip, some will, some won't.
 

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Discussion Starter · #7 ·
Quote:
Originally Posted by looniam View Post

thanks for that
thumb.gif


aside from one "warmer" core - which is no big deal- low 60s is great. 1.08 vcore (but check the bios, cpu-z doesn't always report correctly) is nice. keeping the voltage down along with a good heat-sink is very influential. but i think you can safely say your heat-sink is working.

hitting 4.4ghz with 1.2v (or less) @ 75c would be excellent! but that all depends on the chip, some will, some won't.
This will do.

I used to overclock my E8400 by bumping the Multiplier to the point the core speed reached the desired clock speed.
Then bump the voltage to make everything run stable.

To test this I let Prime95 run for around 12 hours, when it stayed stable I lowered the cpu voltage.
I was looping through this method for several days untill I encountered a problem while stress testing.
I decided to bump the voltage a to the last point it was stable on.

Does this method still apply to the new i5 processors?

~ Archcry
 

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Quote:
Originally Posted by Archcry View Post

This will do.

I used to overclock my E8400 by bumping the Multiplier to the point the core speed reached the desired clock speed.
Then bump the voltage to make everything run stable.

To test this I let Prime95 run for around 12 hours, when it stayed stable I lowered the cpu voltage.
I was looping through this method for several days untill I encountered a problem while stress testing.
I decided to bump the voltage a to the last point it was stable on.

Does this method still apply to the new i5 processors?

~ Archcry
close.

you also have Load Line Calibration which keeps the vdroop from going too low. it will actually raise the idle voltage but keep the load voltage from going below that target. from the setting going low to extreme, most folks like high.

you have a few different routes to go. you can disable speed step and turbo boost set the multi and vcore to manual to have a 24/7 overclock or you can adjust the turbo boost ratio while having speed step enabled to let it idle down while using an offset for the vcore; auto almost always gives too much voltage for what the cpu needs.

here is a great guide to explain quite a bit:
**Ivy Bridge Overclocking Guide** (with LN2 Guide at The End)
though sin uses a gigabyte board the basics are the same for all boards.
thumb.gif
 

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LLC actually defeats the way Intel is trying to handle voltage, and too high of a load line setting will hammer your CPU with voltage. You can run a little bit just to help with your OC, but dont go above a 25-50% setting.
 

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Discussion Starter · #12 ·
Just a quick update.

I bumped the turbo frequency of all 4 cores to 44 (4.4ghz) thereby leaving speedstep intact.
I also raised the vdroop to 100% (not sure about this setting though)
Lastly I bumped the vcore up to 1.2v.

With all these settings I got a pretty decent overclock, here are some screenshots:

Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4
Screenshot 5

Can anyone check whether my settings are any good?

I only tested this for about 10 minutes, I am going to do some longer testing tomorrow.
I hope I can get the voltage down a little so the temperature goes down with it.

I'll keep you guys up to date :d

~ Archcry
 

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take a few things i say with a grain of slat since i am not 100% familiar with MSI's bios:

enable intel's XMP for the ram to insure stability. - that i am sure of.

i think enabling cpu phase control will help the cpu's overclock stability but since you're not really pushing it, yet, that may not be necessary. also that 1.2 vcore is nice. have you spent more than an hour in prime95? no problems? you really need to gpo for 3+ hours to be confident that everything is stable.

now if things go flonky on you, you can at first try a little more vcore but i see the CPU I/O (VCCIO=QPI/VTT) is on auto. you may need to look at that if you get a BSOD:
0x124 = add/remove vcore or QPI/VTT voltage (usually Vcore, once it was QPI/VTT)
0x101 = add more vcore
0x50 = RAM timings/Frequency add DDR3 voltage or add QPI/VTT
0x1E = add more vcore
0x3B = add more vcore
0xD1 = add QPI/VTT voltage
"0x9C = QPI/VTT most likely, but increasing vcore has helped in some instances"
0X109 = add DDR3 voltage
0x0A = add QPI/VTT voltage
http://www.overclock.net/t/935829/the-overclockers-bsod-code-list/0_50

maybe print this out for a handy guide for voltages? (unless you have a handheld or another machine close)


so what is the idle looking like out of curiosity?
 

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Discussion Starter · #15 ·
Hello my dear sir,

I got some new screenshots for you
biggrin.gif


This afternoon I upped the frequency just a little bit more (4.5ghz) @ 1.2v
I let it run for 4 hours and 31 minutes without a crash.
Now I set the voltage back to 1.95 and will do another stress test this evening.
The chip seems to be doing just fine at this point, I will also adjust the settings you told me to before running the test this evening.

Screenshot time:

4.5 ghz @ 1.2v under load
Vcore under load
4.5 ghz @ 1.2v idle
Vcore idle

I also ordered Coollaboratory Liquid Ultra 0.15 ml as I might disamble my CPU in order to get some lower temperatures.
Not really sure about this thought, we'll see
tongue.gif


EDIT:

Found this at overclock.net:
Quote:
I see you have an MSI board; I know exactly what you're refering to. For overclocking, take them all off auto and put them to off/full power. The phase control allows the BIOS to decided whether your CPU is run in 1, 2, 3, 4 (or however many power phases your board has) in order to conserve power. However, this can cause instability when overclocking, so just turn all phase controls off. Generally speaking, more phases = smoother, cleaner power delivery. However, more phases means more power wasted through inefficiency (heating up the MOSFET's) as well, which is why MSI has auto phase control.
I think i'll leave it off for now.

~ Archcry
 

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at 4.4ghz I would leave the power saving functions at stock and just try
CPU voltage: 1.1 (1.12 for 4.5)
Vdroop Offset: +100%
Digital Compensation level: High
Core OCP Expander: Enhanced
Power limit: 255w
CPU core switching frequency: 2x

(I think that corresponds with the MSI bios)
 

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nice. as otterclock posted you may want to see about lowering the vcore - that will help lower your temps. also i saw before that you disabled adjust cpu ratio in OS. that will keep the multi for being lowered along with the C1E state (which later you might want to enable) i know in the core2 days it was the mantra to disable all power saving features but sandy/ivy has changed that. as long as the OC stays stable, no sense at having the cpu run faster than it needs too.

but i can make mistakes - the phase control info you found will be helpful for you. i have bit different perspective having an i5-2400. not much fun to overclock since its limited, so the tweaking fun comes in when i get 0.96 volt idle and no more than 1.17 when i fully abuse it.
redface.gif
 

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Discussion Starter · #18 ·
Just a quick update.

I am currently stressing my CPU with the settings Otterclock suggested.
I got a bunch of BSODS this morning because the voltage Otterclock suggested were to low, I think I got it quite stable now though.

My current settings are:

CPU voltage: 1.160 (multimeter)
Vdroop Offset: +100%
Digital Compensation level: High
Core OCP Expander: Enhanced
Power limit: 255w
CPU core switching frequency: 2x
Multiplier set to 45 (4.5ghz)

Prime95 is running stable for 2 hours and 24 minutes at this very moment.
This morning I tried stressing my CPU with 1.155v which gave me a BSOD, so I think this is as low as I can go (if it stays stable)

These are the current maximum temperatures I got

Core 0: 79C
Core 1: 83C
Core 2: 79C
Core 3: 76C

Ill post some screenshots tomorrow and let this run for some more hours.

~ Archcry
 

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is it me or did your temps rise by 2c?
 

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Discussion Starter · #20 ·
I am using realtemp instead of speedfan now, that may cause the difference.
But I just got some bad news which involves my familly so i'll switch to my second bios and put the overclocking on a hold
frown.gif


Thanks for all your advice and help, I will definitely continue when i have some spare time again
smile.gif


~ Archcry
 
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