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I've never overclocked before so forgive me for not understanding most of it. With the help of Derek, thank you again :biggrin:, I have my RAM running good. What I would like to do is OC my system to get its max performance. Not exactly sure what needs to be done or where to start so I am open to suggestions. Heres my PC spec:

 

Asus P5N32-E SLI PLUS

Intel E6600 2.4GHz

2GB Corsair Dominator DDRII 800 (PC 6400)

BFG 8800GTS OC 2E 640MB

 

I think thats all that is needed.

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This is fine for testing BUT I would go the aftermarket cooler route.

 

Download Prime95:

 

http://www.mersenne.org/gimps/P95V255.ZIP

 

Extract into a folder. Run CoreTemp. It is the best program for testing the thermal output of your Core 2 processor. Run Prime95. Choose In Place Large FFT's. Let it run for 5 minutes. What is the temperature of the cores?

 

Download CPU-z:

 

http://www.cpuid.com/download/cpu-z-141.zip

 

What is the revision and stepping of your CPU?

 

Research this thread. Follow the same instructions. You will find yourself at 3.0Ghz which is a start for stability testing and will give you a view on your CPU's propensity for thermal output.

 

http://www.houseofhelp.com/v3/showthread.php?t=63433

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This is the cooler I bought for my CPU: ARCTIC COOLING Freezer 7 Pro

 

I cant run CoreTemp because of the driver issue, even when turning off the security function.

 

My Revision is B2 and my Stepping is 6.

 

Will read the thread and run the tests then give you the results. If its not too dumb of a question what does the revision and stepping mean?

 

EDIT: I am also moving my old PC desk or buying a new one to get better air flow.

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Stepping and revision show the newness of the processor revisions. Newer revisions often means that more errata have been dealt with, etc. That gives a bit of a guide as to the overclocking of the CPU.

 

Work to the 3.0Ghz and test with Prime95 for stability. You should make 3.2Ghz with that setup and an Arctic 7 Freezer Pro. Not my choice but certainly far better than the stock cooler and easy to install.

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I got CoreTemp to work. From the temps I am getting now, I am not going to start to OC until I get my cooler.

 

Tjunction: 85C

Core #0: 37C

Core #1: 39C

 

What was the other value you needed before? The APICID?

 

Edit: While running Prime95 my temps reached 56C on both cores.

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The VID is 1.1875v. So I should still be able to overclock without damaging my system and it will run cooler than the norm when I get the new fan? I like that.

 

Edit: I forgot to add, I noticed that one core runs at 2.4GHz with a 9 multiplier while the other is running at 1.6Ghz with a 6 multiplier. Is it supposed to be like that?

 

Edit 2: I did some more research and saw that my motherboard was overclocked, and stable, at 472FSB, Northbridge 1.5v, and CPU Voltage 1.5V.

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That's the lowest VID I have seen in a desktop Core 2 Duo. I have seen them at 1.1v for notebook Core 2 Duo's but my L629B is 1.225. I wish you hadn't thrown out the box as I wonder if your processor is a "B" fab as well. The "B" fabs do run warmer, and need better cooling but they run with far less voltage.

 

Test it. Leave your FSB at stock but change your CPU Core Voltage to 1.20. Run Prime95 for a few hours. No "A" fab will make 1.20v at 2.4Ghz and Prime95. If that doesn't work, try 1.225v.

 

Results?

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If that is the correct VID and you have a "B" fab, then I suggest a Tuniq Tower as you very likely can reach 3.6GHz stable. The AC Freezer 7 will never handle that. When you take the stock heatsink off, look at the IHS (Integrated Heat Spreader) and note the FPO/Batch number. For example:

 

http://www.bit-tech.net/content_images/2006/11/intel_core_2_extreme_qx6700/kentsfield_conroe_top.jpg

 

See the L623Axxx? You will have something like that. Please post what you have when you remove the stock cooler.

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Ok I got the number, almost with a cost lol. I hate putting those dam CPU fans in, stupid snap things never work. Had to take everything out to get it on. When I got back it said my CPU had changed and only reconized the one core running at 1.6Ghz. Anyway I got it back working and here is the number.

 

L644G231

 

My CPU-Z version is 1.41.

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Would the Artic Cooler fan be enough or should I get the one you suggested?

 

Edit: Just got the blue screen :(. I dont know why. I ran Memtest all night after the changes and there were no errors. Im assuming its something I did, but didnt do anything wrong.

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It happened again so I defaulted the BIOS to rule that out. If it doesnt blue me again I will change them back.

 

Edit: Defaults are running fine. After I replaced the CPU it must not have liked it. I will readd the settings.

 

Edit 2: According to Memtest I am running stable and the settings I had before. No blue screens yet.

Should I continue with starting to overclock?

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Ok I will try that tomorrow. In my BIOS I can only change the FSB after it is multiplied, right now 1066, so should I just set it at 1332 (333x4)? Im pretty sure that is correct but let me know please.

 

Edit: I set it to 1332, 3.0Ghz. I then ran Prime95 for about five minutes. It reached 67C and it is idle at around 47C. This seems to hot to be stable over a long period correct?

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Ok I will try that tomorrow. In my BIOS I can only change the FSB after it is multiplied, right now 1066, so should I just set it at 1332 (333x4)? Im pretty sure that is correct but let me know please.

 

Edit: I set it to 1332, 3.0Ghz. I then ran Prime95 for about five minutes. It reached 67C and it is idle at around 47C. This seems to hot to be stable over a long period correct?

 

Your load temps are within the maximal parameters. With that overclock the problem is not the load temps although you would see a rise by ~5 - 10C within a few hours of priming with the stock cooler and that will be far too hot. The problem is a hot idle and a minimal temperature drop delta.

 

The temperature drop delta is not taken into account when running stress testing or a CPU running synthetically at full bore. With a good cooler, you will not reach as high a thermal when running real system intensive applications.

 

So basically, the temperature drop delta is the length of time it takes for the temperature of the CPU to drop. For example, in gaming and application use, you do not make use of the CPU 100% of the time. There are points where data is being transferred, CPU use drops in multiple environments, multiplexing needs time to revive a stream, etc... During these times, the processor cores load drops and so does the thermal output of the cores. On a stock cooler, the time between the drops and the loads is marginalized by the coolers inability to release the thermal output and thus the CPU does not benefit nearly as much. With a cooler such as a Thermaltake BigTyphoon, Tuniq Tower and Thermalright Ultra-120 xTreme, you will not have thermal issues. Thermalright has fixed an issue with their new released edition, and this is one of the best coolers around at the moment. It has a drop delta that is rapid and the CPU will benefit greatly from such a cooler. But even the Arctic Freezer is better than stock and with a 3.0/3.2Ghz overclock, it works decently. For the money you spent on this system, I don't think it is a good idea to cheap out by $20.00 or so. Be good to your CPU...

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Is the VID supposed to change? My changes from 1.1875 idle to 1.35 under load. So I should actually set my CPU voltage to 1.35?

 

Edit: I have my CPU voltage at 1.2V at 2.7GHz, 1200FSB, and under load I am around 46C. Will up it and keep testing.

 

Edit 2: I got up to 2.8GHz, then tried 2.9 and BSOD so I increased the CPU voltage to 1.25V. Ran Prime95 with two threads. First one came up with an error after second test but second thread ran all 8 tests in 12min succesfully. I dont have a stress.txt file but here is the error found in the results.txt file.

 

[Mon Oct 08 15:58:50 2007]

FATAL ERROR: Final result was 11DC525E, expected: E1CE3C1A.

Hardware failure detected, consult stress.txt file.

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Are you sure you mean VID? You will find VID in Core Temp. What does Core Temp show as a VID on startup?

 

You need to raise your Core Voltage when you get those errors. Please go into the control panel and set down your system parameters so I don't have to jump around threads or guess what you have for a system.

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Yes it is the VID. It switches randomly from 1.1875 to 1.3500 and vice versa. Upped the core voltage a little so will test with Prime95 again.

 

Edit: Forgot to mention I added my specs, sorry about that was going to before but forgot. I set the CPU voltage to 1.275V running at 2.9GHz, 1289FSB and passed Prime95 with two threads. Im going to see how low I get set my voltage to cut down on some heat. It stayed around 52C under 100% load, but cooler is always better :).

 

Edit 2: Guess all I needed was one setting up from 1.25V. Am running at the same GHz and FSB at 1.25625V. Passed the In Place Large FFT torture test, used for all testing, with two threads for the eight tests at 1024K. Temps run mainly around 50C under 100% load.

 

Edit 3: Got it running at 3.0GHz, FSB 1333, at 1.29375V. Should I run the In Place Large FFT torture test until it finishes? Ive only been running the first 8 tests at 1024K.

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Yes it is the VID. It switches randomly from 1.875 to 1.3500 and vice versa.

 

Those are strange numbers. I can't see an issue though. Test with Large FFT's for 8 hours. That means you are quite stable. As long as you go no higher than 3.0Ghz, you will not need to go with more than the Arctic Freezer 7. What does CPU-z give you for your Core Voltage on load?

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I might try 3.2 when I get the AC Freezer. CPU-Z says 1.36V under load. Which is wierd to me because it shouldnt go any higher than what I set it to in the BIOS correct?

 

Edit: I forgot to mention that i am running at 52C under load with the latest settings I showed.

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