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Old 06-21-09   #21 (permalink)
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It may only be in a newer BIOS version too.
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Old 06-21-09   #22 (permalink)
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i mean. this NCC? what does it stand for. ive searched on google and nothing. and is it in the bios or on nvidia control panel.
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Old 06-21-09   #23 (permalink)
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wow eh, 4+ ghz on air cool,

good chip
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Old 06-21-09   #24 (permalink)
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Hopefully by today I should have something to show. Right now I'm at 3.9ghz with 1.47v and load temps don't seem too bad. So far the highest that I have seen are 45°C. The problem is that the last couple of bumps have needed a lot more vcore, 4.0ghz isn't looking to good right now.

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Old 06-21-09   #25 (permalink)
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Hopefully by today I should have something to show. Right now I'm at 3.9ghz with 1.47v and load temps don't seem too bad. So far the highest that I have seen are 45°C. The problem is that the last couple of bumps have needed a lot more vcore, 4.0ghz isn't looking to good right now.
Are you using Vista 64-bit? I think you are at the limit for 64-bit.
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Old 06-21-09   #26 (permalink)
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i mean. this NCC? what does it stand for. ive searched on google and nothing. and is it in the bios or on nvidia control panel.
It's actually called NvCC which stands for Nvidia Clock Calibration. It's a form of ACC for the Nvidia nForce 980a only. But from what I've read it uses a separate micro code from ACC that does not allow unlocking.

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Old 06-21-09   #27 (permalink)
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Are you using Vista 64-bit? I think you are at the limit for 64-bit.
There's an overclocking limit due to OS? I don't know if that's true or not, but you are right about the limit. 230x17= 3.91ghz, which is pretty much my max, somewhat stable clocks. I have booted over 4ghz but not stable.

Right now I'm trying to work things out using a 16x mulit to try and increase the reference clock. I just don't know how much voltage is safe for the cpu/nb. I'm still trying to figure that out. If I can do 245x16, I'll be happy.

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Old 06-21-09   #28 (permalink)
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I don't believe in the OS limit. With the Brisbanes you could increase stability by adjusting the memory sub timings for a higher OC. I wonder if the 550 has the same trait.
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Old 06-21-09   #29 (permalink)
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Yes it is a known fact that you can gain a bit more overclock by using a 32-bit system
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Old 06-21-09   #30 (permalink)
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Quote:
Originally Posted by richierich1212 View Post
Yes it is a known fact that you can gain a bit more overclock by using a 32-bit system
Actually its more of a rumor.

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