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i3-550 Overclock help!

post #1 of 23
Thread Starter 
Alright I just bought this i3-550 along with a Biostar TH55B HD mobo and 4gb(x2 2gb) gskill DDR3 1600 ripjaws CAS 9.

Been having one heck of a time getting this thing stable and I think its to due with cmos settings like power saving features but I have no clue which settings do what. Currently its all default settings except for manual overclocking enabled and I disabled speedstep and CE1 Support (halt state setting). I set my memory profile from auto to xmp-1 and set DDR3 freq to 1600 and then my mobo automatically changes my bus speed to 160mhz from 133 (still with a x24 multi).

Well I'm not sure why but after i save settings I try and start windows then my screen goes into crazy color mode then my computer restarts again...

Right now I have my multiplier at x20 with a bus of 160mhz and RAM at 1600mhz and I seem stable as I'm writing this post. Voltage settings are set to auto and I idle at around 1.03v core volts and my temps are 41c. My question is how can I get stable using a x24 multiplier?? Any help would be appreciated.
Edited by Boscogn - 1/25/11 at 7:12pm
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post #2 of 23
first off, enable speed step, it'll save you power and lower cpu temps and voltages while your not doing anything demanding.

Secondly, if you want to raise the multi to 24x, thats going to give you 3.8ghz on the cpu, and the reason it doesn't work at 3.8ghz is because the cpu needs more voltage. Try raising the voltage incrementally until it works stable, then download Prime 95 and run a blend test for at least 6 hours to ensure stability.
Monitor your temperature closely though, since temperature will slowly rise as you raise the voltage.

Remember, at multilayer 20x and Blck 160, your CPU is running 3.2 Ghz which is the stock fequency. You're not getting any CPU speed loss from stock with 20x 160.
    
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post #3 of 23
Thread Starter 
Quote:
Originally Posted by toxaris71 View Post
first off, enable speed step, it'll save you power and lower cpu temps and voltages while your not doing anything demanding.

Secondly, if you want to raise the multi to 24x, thats going to give you 3.8ghz on the cpu, and the reason it doesn't work at 3.8ghz is because the cpu needs more voltage. Try raising the voltage incrementally until it works stable, then download Prime 95 and run a blend test for at least 6 hours to ensure stability.
Monitor your temperature closely though, since temperature will slowly rise as you raise the voltage.

Remember, at multilayer 20x and Blck 160, your CPU is running 3.2 Ghz which is the stock fequency. You're not getting any CPU speed loss from stock with 20x 160.
Thanks for your reply. I have all the programs prime 95, cpu-z, HWMonitor. I was worried about heat since i just have the stock intel cooler and its not so good thermal paste. At the moment im at 21x 160 with ram at 1600. I would be happy with a 3.8 ghz (24x 160) untill i can upgrade my heatsink. Would that be possible on stock cooling? About voltage which do i increase?? just the Vcore or the others as well. All are set to auto at the moment. Another question is speed step makes me paranoid i think it has problems i open music internet and a game and my cpu-z reads it at 2.8ghz not even stock speed. I guess im just happy with a static overclock. Which bios settings need to be enabled/disabled ??? Here's a list of what i have so far.

Enabled: (I've read for the most part these have no effect on overclocking)
Heath Monitor
Virtualization Tech


Disabled: (which of these can be turned on??)
C1E Support (Halt state.. im not sure i understand this)
SpeedStep (paranoid its not giving me full performance when gaming)
C-state (not sure what this does my understanding is balances loads between cores? and is also a power saver)
HT (Hyperthreading)

I turned these off after reading in forms power saving features should be disabled. Since I'm new at this i decided to go with a static overclock instead of a dynamic one but if you think speedstep is all the rage could i get some advice on a dynamic overclock??
Edited by Boscogn - 1/26/11 at 7:30pm
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post #4 of 23
No problem

Speed step lowers your CPU frequency while not gaming, so it basically gives the processor as much power as is needs.
If you run an application that needs a lot of processor power, it will enable the CPU to run at full speed, likewise, when you're just internet surfing or playing non CPU demanding games, it down-clocks the processor to lower heat and save energy.

Now, run an other blend test of prime 95 for 30 minutes. After about 30 minutes of running it, keep it running and open up your temperature monitoring software and make sure it doesn't surpass 80C! if its at like 60 for example, you might be able to get to 3.8GHz by raising the voltage, but it is a little risky, especially since you have the stock cooler.
btw, can u post your temperature at full load here and the voltage at full load? (after 30min of prime95)
    
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post #5 of 23
Thread Starter 
Update:
I have enabled C1E, speedstep, c-state
I've upped my voltage to 1.164
My multiplier is at 24 with a bus speed of 160.
DDR3 is at 1600 as well

Under prime 95 blend test each of my cores get to ~70-75c which is kinda scary for me. Without speedstep my idle temps were at ~42c and with it they go way down to ~34c.

However i wouldn't say this is stable because my computer hangs for about 5 min after bootup into vista with the only programs running at start being my antivirus and some important drivers. It will have to think about opening my mozilla firefox for 5min then it opens fine with no more delay kinda sketchy. I will up the vcore by .02 increments until its stable but am waiting for tonight to run a prime95 blend with adequate time and cooler ambient room temps which is about ~10c to see for sure.

Any additional help is again much appreciated.
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post #6 of 23
You had the right thought of diasbling all power saving features. You should be able to hit 4GHz with your chip all day. First go back and disable all power saving features. then you must ask yourself if the programs you run require HT? HT will generate a lot more heat under load. I dont use it so I disable HT unless I need it, but I never have. Second your temp of 41c seems kinda high for only having 1.03Vcore. Are you sure that is the correct voltage and how are you reading this voltage? It took me 1.225V/1.2Vtt to get a stable setting of 4.03GHz[168*24] with my RAM @1680[168*10] or the 1333 setting which is equivalent to x10 multi.

I would suggest that you reseat your CPU heatsink first before you do anything to bring those temps down. At stock in idle you should be looking at 21c maybe a little more depending on your cooler. these are 32nm chips that run very cool. I also notice that you have an H55 mobo, right. Make sure that the on core graphics is disabled. that could be causing your temp increase.
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post #7 of 23
Quote:
First go back and disable all power saving features.
wouldn't that mean that his cpu will be running at 4ghz constantly, even when just using internet etc?
    
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post #8 of 23
btw 4ghz on stock cooler!? LOL, I've never heard of that
    
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post #9 of 23
Quote:
Originally Posted by toxaris71 View Post
wouldn't that mean that his cpu will be running at 4ghz constantly, even when just using internet etc?
Quote:
Originally Posted by toxaris71 View Post
btw 4ghz on stock cooler!? LOL, I've never heard of that
Yes it does mean that it will be at 4GHz all of the time. And no I do not have a stock cooler LOL. I said at stock frequency he should be around ~21c/idle maybe a little more. The stock frequency for this chip is 133x24, not 160x20 LOL. Check my sig for validation on air. These are 32nm chips, its not very hard to keep the temps in check on air unless you did something horribly wrong.
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post #10 of 23
Thread Starter 
Quote:
Originally Posted by Voltage_Drop View Post
You had the right thought of diasbling all power saving features. You should be able to hit 4GHz with your chip all day. First go back and disable all power saving features. then you must ask yourself if the programs you run require HT? HT will generate a lot more heat under load. I dont use it so I disable HT unless I need it, but I never have. Second your temp of 41c seems kinda high for only having 1.03Vcore. Are you sure that is the correct voltage and how are you reading this voltage? It took me 1.225V/1.2Vtt to get a stable setting of 4.03GHz[168*24] with my RAM @1680[168*10] or the 1333 setting which is equivalent to x10 multi.

I would suggest that you reseat your CPU heatsink first before you do anything to bring those temps down. At stock in idle you should be looking at 21c maybe a little more depending on your cooler. these are 32nm chips that run very cool. I also notice that you have an H55 mobo, right. Make sure that the on core graphics is disabled. that could be causing your temp increase.
How do i know which programs require HT?? I might just disable it to bring down temps till i can ditch this stock intel cooler. Mostly i surf internet, play games and design webpages via adobe dreamweaver/photoshop.

For my temps i use HWMonitor to view and both my cores are at ~28c with speedstep enabled and my cpu-z is reading at 1.020v at x10 multi with a 160 bus so effective 1.6ghz while using the internet. under prime 95 blend test cores jump to ~60c then ~75c after about 30min of testing and i get full x24 multi with a 160 bus and 1.164vcore.

Without speedstep i idle at ~40c with a vcore of 1.164 and 3.8ghz effective (160 x24) using a stock intel cooler mind you. I want to reseat the heatsink but want to wait till i get my hands on some decent paste then i'll end up doing the SB heatsink as well. its running at about ~59c.
Yes my mobo is a H55 the bios settings are new to me so i left it stock (disabled with PEB or something like that.) Basically disabled because i have a 5670 in my pci e slot. I THINK lol I'll have to google around to make sure.
Edited by Boscogn - 1/26/11 at 5:37pm
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