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HELP! Unstable OC suddenly is stable?

post #1 of 2
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A couple months ago I ran Intel burn test on my sig rig with these settings.

CPU - 200x19 = 3.8ghz @ 1.475v (vdroop under load: 1.456)
A second attempt - 3.8ghz @ 1.5 (1.488 24/7 actual voltage, but no vdroop )

Both of these were unstable in Intel burn test within 4 loops.

Now, even the 1.475 which vdroops to 1.456 is ROCK solid through as many runs as I want at 3.8ghz.

Here is a complete list of everything that has changed since my first attempt.

1. The thermal paste had break-in time, because the temps did drop about 4-5c. This was all it took to be stable (my current load temp @ 1.475v, 3.8ghz is 46c compared to the original 50-51)

2. I updated my BIOS to version F5a.

3. I got a new video card (upgrading from 5570 to 6950)

4. I installed cold cathode lighting.

5. I installed an IDE drive.

6. Stopped using MSI afterburner

7. I disabled PCI spread spectrum.
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The Butthurt Box
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post #2 of 2
bios updates cause that, caused me to be able to bench at 4.5ghz on 1.37v stable, but i downclocked it for 24/7 to be safe
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Orange Angel
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