Suggestions on E6600 oc

[ONER]

Well I decided to overclock my PC that's in my sig for the first time. I changed couple Bios settings and I set a divider of 9x333 with 1.40v
in the Bios to start off but I'm stuck there. I ran PI 32M and it failed. My temperatures never went above 56. I set my memory to it's standard
timings (4-4-4-12 and 2.1V). I have posted a sceenshot. Any suggestions would be gladly appreciated. Thanks!

http://img221.imageshack.us/img221/9756/overclockme1.th.jpg (http://img221.imageshack.us/my.php?image=overclockme1.jpg)

[Stoneyguy]

It's not advisable to just bump the voltage up all of a sudden. You should OC until it's not stable then bump the voltage up a bit and then continue to try and OC.

[Lazaredz]

IGN (http://pc.ign.com/articles/747/747606p1.html) has a GREAT starter article for this. Its a shorter version of the exact same thing nvidia put out themselves. I HIGHLY suggest following it as it will get you about 90% of the way there with just a little time.

My own personal experiance says up the SPP to 1.55 for stability and expect your Core to be around 1.45-1.5v.

[ONER]

Thanks for the responses guys. I'll read up on more of the stickies and see where I get. Thanks.

[ONER]

Well thanks Lazaredz for the guide. Look at my results. I'm going to lower my
clocks a bit due to temperature. I'm going to lapp my Heatsink to drop a couple of degrees.

http://img405.imageshack.us/img405/2442/pi32donewq2.th.jpg (http://img405.imageshack.us/my.php?image=pi32donewq2.jpg)

http://img413.imageshack.us/img413/5271/3dmarkscorefg4.th.jpg (http://img413.imageshack.us/my.php?image=3dmarkscorefg4.jpg)

3.62Ghz @ 1.4v (403x9). Now I'm also going to try and run my memory at 1:1.

[SlieTheSecond]

62 and 53c? Thats a bit of a difference.

Have your prime95 it to see how high the temperatures really go under a full load?

Do you know how to lap the heat sink. If you screw it up, you will end up with higher temperatures.

And I hope you are using more than super pi to test the stability of the overclock.

[ONER]

Well the big difference is because I snapped the screenshot right when the test was done and temperatures started dropping. The temps alway stay within a max difference of 5 degrees on both cores. I ran Prime95 for about half hour to check the temps at full load and the max it reached was 68. As soon as I stopped it the temps drop back down and idle at 50 degrees. I couldn't install two instances of Prime95. So I'm planning on running two instances of Orthos and run it for a couple of hours. And about the heatsink; I was going to use this tutotorial: http://www.driverheaven.net/guides/lappingheatsink/


http://img441.imageshack.us/img441/839/tempsvh0.th.jpg (http://img441.imageshack.us/my.php?image=tempsvh0.jpg)

[Xion X2]

If you didn't run two instances of Prime, then you didn't get accurate temp readings. Your temps will escalate another 7-10C by running it on both cores.

You have to copy and paste the prime executable to another place on your drive. Put one on your desktop and one on your C drive and then run it from those locations and it should work. Then set affinity to 0 on one core and to 1 on the other.

[ONER]

Thanks Xion. I'll do that right now. What is safe temps to run dual Prime95 and how long should I run it for?:)

[da0s]

If you didn't run two instances of Prime, then you didn't get accurate temp readings. Your temps will escalate another 7-10C by running it on both cores.

You have to copy and paste the prime executable to another place on your drive. Put one on your desktop and one on your C drive and then run it from those locations and it should work. Then set affinity to 0 on one core and to 1 on the other.


Just download the latest release of Orthos ==> http://sp2004.fre3.com/beta/orthos_exe_20060420.cab It automatically detects dual cores and maxxes them both out. Orthos uses the exact same calculations as p95. Matter fact, the code is identical. Notice in the pic below how both cores are maxxed using only one instance of Orthos.

If you can pass 2 hours of Blend testing with Orthos then you can consider it stable with just about anything you throw at it.

http://img.photobucket.com/albums/v217/daos1234/orthos-1.jpg?t=1168741489

[Lazaredz]

Make sure your heatsink is set right. There should not be that much of a differance between cores.

Use Orthos, its great and easy. Just download, install, and it will run both cores without having to mess with it.

Be sure to WATCH your temps while testing. With TAT, I would worry if it gets above 70C. I believe damage starts around 75C-ish.

[nippyjun]

IGN (http://pc.ign.com/articles/747/747606p1.html) has a GREAT starter article for this. Its a shorter version of the exact same thing nvidia put out themselves. I HIGHLY suggest following it as it will get you about 90% of the way there with just a little time.

My own personal experiance says up the SPP to 1.55 for stability and expect your Core to be around 1.45-1.5v.


How do you know when to increase the SPP voltage? Will incrasing the spp voltage possible make it so the cpu doens't need as much voltage for a given overclock?

[ONER]

Well here are some results after running Dual Prime95. What do guys think?

This is under full Load

http://img168.imageshack.us/img168/5488/36overclockbeforebo6.th.jpg (http://img168.imageshack.us/my.php?image=36overclockbeforebo6.jpg)


This after finishing Dual Prime95

http://img467.imageshack.us/img467/2953/36overclockrb7.th.jpg (http://img467.imageshack.us/my.php?image=36overclockrb7.jpg)


I'm thinking it's ok since I wont be running the cores under constant 100% load.

[TonyM16]

Well thanks Lazaredz for the guide. Look at my results. I'm going to lower my
clocks a bit due to temperature. I'm going to lapp my Heatsink to drop a couple of degrees.

http://img405.imageshack.us/img405/2442/pi32donewq2.th.jpg (http://img405.imageshack.us/my.php?image=pi32donewq2.jpg)

http://img413.imageshack.us/img413/5271/3dmarkscorefg4.th.jpg (http://img413.imageshack.us/my.php?image=3dmarkscorefg4.jpg)

3.62Ghz @ 1.4v (403x9). Now I'm also going to try and run my memory at 1:1.

Wow, I was going to help you out but I see you are doing fine on your own. Just don't loose those settings now or you may found it difficult to get them back (that happened to me, I took me five mins to get 3.55ghz on the first day, but after I lost that setting due to unplugging power it took me several hours to get it back)

Also you should test TAT 100% work load/thermal load, by pressing star under the temps, if the temps get close to 85c you need to back down, even 80c would be dangerous. 70c is high but acceptable. You need to wait a min ofr the temps to get to their highest.

[SlieTheSecond]

Personally, If I where running past 60c under a normal full load (gaming, or the sorts. Which I have yet to see my temperatures go as high as prime95) I would find better cooling or back down the speeds. Whats that CPU rated for the IHS around 60-61c right? Those temps are way past that.

But this is one of those subjects where everyone has their own opinion of how hot a cpu can go. Do some research and decide for yourself.
Tho I plan on keeping my E6400 for a long time and not having it burn out. Unless there is a slim chance quad cores become really cheap, and there are actually games that take advantage of it. Until then, I'm keeping my cpu around 55c or lower.

[ONER]

Well after further testing, I was able to lower my temps a bit by lowering the voltage. Now I'm running at 3.6GHz 1.42v. Dual Prime Stable.

http://img402.imageshack.us/img402/9400/36primestablejr6.th.jpg (http://img402.imageshack.us/my.php?image=36primestablejr6.jpg)


Is 3.6GHz fine for everyday use?

[SlieTheSecond]

Are you nuts? Is 3.6 fine for everyday use?
I hope you where gloating and that wasn't a real question :)

[ONER]

Are you nuts? Is 3.6 fine for everyday use?
I hope you where gloating and that wasn't a real question :)

lol. Well this is my first time ever overclocking. So I was actually being serious. I hope so.(nana2)

[SlieTheSecond]

Ooohhh ok. I miss understood the context of the question. Yes that is a good overclock for that cpu. Not to many people get it higher. And those that due usually use water or phage change.

I thought you meant is that cpu at the speed going to be good for running programs. In that case, hellll yes. There isn't much of anything that is faster right now. :)

[ONER]

lol. Thank you very much. How else would I be able to take this overclock further? I was thinking something on the memory side.

[Lazaredz]

How do you know when to increase the SPP voltage? Will incrasing the spp voltage possible make it so the cpu doens't need as much voltage for a given overclock?

It was just a hunch on my behalf. I was having some instability issues and raising the Core didn't help, FSB was allready at 1.5, so I tried the SPP. Bumping it from 1.5 to 1.55 solved the issue. Doing this will most likely NOT reduce your voltage needs on the CPU.






Well here are some results after running Dual Prime95. What do guys think?

This is under full Load

http://img168.imageshack.us/img168/5488/36overclockbeforebo6.th.jpg (http://img168.imageshack.us/my.php?image=36overclockbeforebo6.jpg)


This after finishing Dual Prime95

http://img467.imageshack.us/img467/2953/36overclockrb7.th.jpg (http://img467.imageshack.us/my.php?image=36overclockrb7.jpg)


I'm thinking it's ok since I wont be running the cores under constant 100% load.

You are cutting it close, but I would run with it. Just pay attention for the first couple of days. Watch for anything "funny", glitches, and of course errors/reboots.

Most users (in my opinion) are a little TOO worried about their temps with overclocking. Yeah you have to watch them, but one should expect them to run HOT with a 50% overclock. Keep below 70C and it really shouldn't be an issue.

[Lazaredz]

lol. Thank you very much. How else would I be able to take this overclock further? I was thinking something on the memory side.

Most REAL WORLD studies show that pushing the RAM with Core 2s has a negligiable effect and trying for tight timings has almost NO effect at all.

Personally I would just set up my RAM to run at default speeds and not mess with it. Its not worth the time/effort.

However, IF you HAVE to do this for bragging/learning experiance I'm sure there are others on the board here who can help you out. Just don't be angry when all that work gets you 101FPS instead of 100. ;)

[TeChN0_GeEk]

Hey Oner, great job on getting those speeds!!

This is my first time as well overclocking, and i have similar build like yours but haven't gotten that far.

here's what i've gotten and need to know what more can i do, still confused about ram to fsb ratio. Is a 3:4 ratio good?

Any advice would be appreciated.

[ONER]

Well from what I see you have your memory overclocked. But really, I don't know much. I'm in your shoes.Your vcore looks a bit high on cpuz. What are your load temps? You also might want to install and run dual Prime95 and run it overnight to make sure you have a stable overclock. You can also use othos. I think you should still be able to push it more. Just watch your temps.

[TeChN0_GeEk]

Well this just sux!!!

Lowered my vcore down to 1.35 and ran 2 instances of prime95 overnight, load temps were averaging 62c.

Decided to go higher to 1500 fsb to get 3.375, prime95 failed on 1 of my cores within a few seconds. Increased my vcore to 1.4 and same thing happened. Kept increasing my vcore to 1.5 until prime95 would run past the 1min mark. Left it running for 5mins before shutting down due to temps reaching 75c. Decided to go back down to 1425 fsb (3.206Ghz) and vcore 1.35, and now this is not stable can't run prime95 or orthos without it failing within a few seconds.

Can't get stable until increasing core back to 1.4.

Why can i not get back my previous oc?