X-Built,
Congrats on achieving stability at 3.6ghz. That's great news
After going through a few more unsuccessful rounds of the screen freezing in OCCT, I dialed in your settings and passed the standard 30 minutes test!
In my experience, passing this usually means clear sailing to Prime95 stability, as I've never found OCCT to pass when Prime fails within four to eight hours. This gives me great confidence, as even if Prime does fail, all that should be needed now is some slight vCore tweaking. It's the home stretch!
Here are my settings for 3.6ghz, OCCT Stable:
CPU: 3600mhz (400x9)
FSB: 1600mhz (400x4)
RAM: 800mhz (400x2)
RAM timings: 5-5-5-15-2T
PCI-E freq: 100mhz (stock)
Auto-Disable: Disable
vCore: .3000 (the next step is to find the lower bounds of stability.)
vDIMM: 2.1
FSB: 1.45
SB: Auto
GTL Ref: 65
FSB Terminator: 25
All other voltages: Auto
Speed Spectrums: Disabled
Interestingly enough, the last unstable settings were similar: FSB was at 1.4v while FSB Terminator was at 50. These previous settings caused the same freezing issue within 5 minutes of the OCCT Test. This certainly adds weight to my suspicion that the freezing issues were caused by incorrectly "tuned" NB voltages. Bumping NB voltage just .25 and reducing FSB Term to 25 did the trick.
My next step is to see how low I can go on vCore while maintaining all other voltages. I should be able to cut down a few notches, based upon my experience with this chip. With that finished, I'll do a 12 hour Prime run and call it a day for 3.6ghz. Then I'll likely want to get my Vista environment running on this rig before I try for 3.8-4.0 stable.
This is very good news we're having today.
With the earlier 4.05ghz benchmark and our success at 3.6ghz stable, I'm far more inclined to recommend this board as an able overclocker. That's very exciting, as this will be the first non-reference Intel nForce board (680i or 780i) that works well out of the box and provides for ample overclocking (even if OCing isn't as easy yet as on the reference boards.) Given that the solid caps and the advanced PWM system should provide for greatly increased reliability over the long term when compared to the reference boards, I'd say the P7N is indeed a winner!
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