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Safe overclock

post #1 of 9
Thread Starter 
My rig is in my specs, my ram is DDR2 800 4-4-4-12 timings it says on the box, and my conroe 6400 cpu is at 34-36c idle, Can anyone tell me the exact overclock levels, All I want is a light overclock, so if someone could give me some safe numbers to set everything at Ill give u a hug, maybe even a cookie with rep spinkles
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Little Smoky
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post #2 of 9
Get TAT or Core Temp for the temps. Make sure they stay around 60C tops in those programs (ok, maybe 65C).

With that set up, you can have more than a mild OC. You can ROCK it

- Put RAM at DDR2 533 speed (1:1 with CPU)
- Default volts for now
- work your way up with the FSB.... see how far that gets you. Keep an eye on those temps.
- on stock volts... I might say, 2.8GHz or so should be attainable.

If that all works, post your results, and we'll start with overvolting and such (for now, I keep the RAM a little low to be sure it won't cause trouble)
    
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post #3 of 9
Thread Starter 
Nice info thanks! So lowering the speed of the ram to those slow speeds, wont that kill performance, and defeat the purpose of buying expensive fast ram?
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Little Smoky
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post #4 of 9
No.

The point is the following: The DDR2 800 RAM will likely hit speeds around 1000MHz (when lucky). However, first yuo want to see how far you can get with yuor CPU. Then, go down a bit, and try RAM at DDR2 667 speeds.

For example, if you have RAM at DDR2 533 speeds, and you hit an FSB or 400MHz, your effective RAM speed will be 533/266*400= DDR2 800 speeds (hey, guess what, that's stock speed for the RAM).

You probably can end up with a combination of an FSB of 350MHz, and RAM set at DDR2 667 in BIOS. This will end up in an effective RAM speed of 350/266*667 = DDR2 877 speeds (thus a nearly 10% overclock on the RAM).

At these FSB's, setting RAM at 800 won't work, since at 350MHz FSB, the RAM speed will be 350/266*800 = DDR2 1053. With luck, a good kit might be able to achieve that, but don't count on it.
    
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post #5 of 9
Yea, that sounds about right. So its 50-55c max for AMD's and 60-65c for Conroe's?
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Turismo
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post #6 of 9
Yeah.. But make sure you use TAT or Core Temp to measure. If yuo use speedfan or something like that, there can be an easy 10C difference
    
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post #7 of 9
Between TAT and speedfan/AI Booster, there can more even more difference, like around 20c. Its because TAT is on the cpu itself or something, and thats why temps on that are high at stock speeds. Most have 50-55c 100% load at stock speeds using TAT. And that doesnt leave a lot of headroom. Maybe we should say something like: 75c on TAT, and 60c on speedFan (NOT real values tho)
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Turismo
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post #8 of 9
You should be able to OC nicely.

Get TAT, and use only that for temp readings. Though, while other programs will be off, they should be consistantly off. As in ASUS probe should always read 10-15C below what TAT will say. The difference is that TAT and the other programs are not reading the same sensor. I would not let TAT go above 65C, your not going to break anything yet, but for 24/7, you should be running <60C at full load.

Get Orthos so you can test you OC's for stability. Let it run overnight, 6-8 hours is usualy enough.

P5B deluxe bios screens maximum overclocking

Check this out. You should basicly mimick these settings. However, you have a P5W(975) which is not as good for big FSB like the P5B(965) is, and the E63/64 like lots of FSB.
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post #9 of 9
Thread Starter 
Im just worried Ill set things to low or something, and lose performance, cause im a noob lol, and this morning when I flipped on the power to my pc it runs at full blast then shuts off (prior to me even pushing the power button) then I just flip on the power and it runs fine, kinda weird
Little Smoky
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Little Smoky
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Intel E8400 Wolfdale 3.0GHz Gigabyte GA-EP45-UD3P EVGA GTX 260 896MB G.Skill 4GB DDR2 1000 
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