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Thread: X3350 Arrival

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  1. #11
    Xtreme Enthusiast
    Join Date
    Mar 2008
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    750
    Quote Originally Posted by Crankybugga View Post
    What voltage you need for stable 3.6 and 3.8Ghz?
    Id would think 1.5v is too high for 24/7 air cooled rig.?
    3.6GHz: 1.22V
    3.8GHz: 1.32V

    Quote Originally Posted by karl_eller
    I'd watch that vCore if I was you. The 45nm CPUs (at least the Wolfdales, and I doubt Yorkfields are much different) have a habit of dying if given much more than about 1.45v actual for 24/7 use. I personally wouldn't want to be using more than about 1.4v actual with a 24/7 rig.
    Thanks for the reminder. Someone said the same thing to me when I bumped my E8400 to 4.65GHz the other day. I'm just posting a validate for 4.00GHz to show that there's really... no such thing as a 480FSB wall for this CPU. Of course it's not a matter of VCore, since I can also boot into Windows at 4.00GHz with 1.35V (just found out). The problem is that the strain on the motherboard at 500FSB is too great for it to maintain stability over long-term use, so 4.00GHz is really unrealistic, and not just for the vCore it requires.

    I'm currently running 3.80GHz still, and it's stable enough at 1.32V. There's very little difference between 3.80GHz and 3.60GHz, though. Probably 1.1 seconds in SuperPI 1M and that's it.

    P.S.: And this chip is showing weird signs... of voltage requirement. It required 1.344V to prime stable for over 4 hours just yesterday. Now if it's degraded, it should require more, right? Today, it's requiring only 1.320V to prime stable for 7 hours straight. Slapping a Big Typhoon over it cooled it down drastically, too, and now I'm hovering at 20C-55C in normal office works and gaming sessions. Also to note that 475FSB no longer required me to boost the PLL and FSB termination voltages. I can leave them at stock now, and instead, just bump the northbridge voltage to 1.55V and it's rock solid. I have a Thermaltake Extreme Spirit II on my northbridge chip so I'm not afraid of temperature... but... that's just plain weird. Just yesterday, it required 1.64V PLL and 1.40V FSB Term to stay stable at 3.80GHz!
    Last edited by RunawayPrisoner; 03-25-2008 at 02:57 PM.

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