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Unstable at 2.5 GHz?

post #1 of 11
Thread Starter 
Alright i had my A64 3000+ running at 2.4 and decided to bump it up to 2.5, so i did, and i raised the voltages to 1.425(1.4 Stock) and boot into windows and everything is fine, I validate it with CPU-Z, I run SuperPi 1M, and it runs but then i open Speedfan and temps are about 45C so there good, now i open Orthos and start it to check if full load temps are O.K and It Freezes, I know its not my memory since it was running at 208, and ive had it at 210, so what could it be? Do i need more volts?
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Forever Young
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post #2 of 11
Definitely more voltage.
post #3 of 11
Thread Starter 
So maybe 1.45, or even more than that?
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Forever Young
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post #4 of 11
Well that stock speed for the 3000+ is what, 1.8 or 2.0?

Regardless, yes, try 1.45 to 1.5. Your safe zone is 1.55v and below. Anything higher than that is ridiculous.
post #5 of 11
Thread Starter 
stock is 2.0
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post #6 of 11
What I did is I shot for a certain speed (2.8) and just raised my Vcore, by the smallest increment, which I think was .125 or something) until it was stable on a stress test.

You definately want the voltage to be the lowest possible (Volts = higher temps, and too much voltage can damage the CPU regardless of temps)
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post #7 of 11
Thread Starter 
So if i up it to 1.45 volts, I should be stable?
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post #8 of 11
do you have access to a soundcard?

I'm thinking that your mobo is doin too much to be able to properly support overclocking ( if I'm not mistaken, you have onboard video).An independent soundcard might be the cheapest way to take some of the load off your motherboard.
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post #9 of 11
Thread Starter 
No i dont but i could get one for like $30, and my speakers werent on so would that still have an effect on the OC?
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post #10 of 11
You really don't have to worry about the onboard... I don't even know why that was brought up. The onboard sound takes up very little resources and it's really only noticable in games. The onboard graphics is its own processor that uses RAM from the system.

All you need to worry about is your FSB, voltage, HT multi, RAM divider, and temps.
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