It's not yet ready, I think :-).
Where courage, motivation and ignorance meet, a persistent idiot awakens.
Yes it's the limit it's 222Mhz !!! After it's the bug simply
Because i have make the WR base Clock of i7 since 1 week ....
http://img383.imageshack.us/img383/4...k248mhzey6.jpg
I could git 221 MHz 1M stable with the Rampage 2 Extreme, 220 MHz with the MSI Eclipse, 222 MHz with Biostar X58 and 200 with the EVGA X58. Remember, that all boards had some issues and with a new wave of BIOS updates, it could be very different. Why boards are not being tested carefully any longer by the manufacturers is a riddle to me. =/
Currenty trying to convince the Renaissance to post again, which it did exactly once with the 3rd CPU I tried =(
オタク
"Perfection is a state you should always try to attain, yet one you can never reach." - me =)
Crunch with us, the XS WCG team
The XS WCG team needs your support.
A good project with good goals.
Come join us,get that warm fuzzy feeling that you've done something good for mankind.
Intel DX58SO = 180 MHz Prime stable for me, worst board I tried so far =)
オタク
"Perfection is a state you should always try to attain, yet one you can never reach." - me =)
Crunch with us, the XS WCG team
The XS WCG team needs your support.
A good project with good goals.
Come join us,get that warm fuzzy feeling that you've done something good for mankind.
The Intel board Madshrimp had wasn't any good either ...
Where courage, motivation and ignorance meet, a persistent idiot awakens.
Just imagine if these things get to 250 bclock after some BIOS tweaks!
That's almost scary isn't it?
Do you remember the rumors about only high end CPUs of the Nehalem architecture will be overclockable, that was spread a while ago? Just a wild guess, but I have the feeling the 4 GHz QPI limit is some kind of a purposely put limit. I am having a hard time to believe 4 CPUs on 4 completely different boards fail at about the same BCLK limit. Maybe I am doing something seriously wrong or it is no coincidence (low end OC limit?) =)
With the Biostar X58 I can boot right at 222 MHz BCLK, run 8M (didn't try more, Prime crashed) and using SetFSB anything above 222 MHz is not even stable in idle. The only thing with a similar behaviour were low end C2D chips with really hard FSB walls. Cold helped to push that wall further, which seems not to be the case for Nehalem CPUs.
Just a wild guess, but I would love to hear some scientific explanation for this "issue" that almost everybody seems to face.
オタク
"Perfection is a state you should always try to attain, yet one you can never reach." - me =)
Max for me on Air
4400 on air is quite nice , Anyone know what max mhz 3d stable is? Since the release date .
Last edited by vanovich; 11-25-2008 at 03:02 PM.
Gigabyte X38T-DQ6/2x1gb xtreme/2x2900xt
E6850@ 4500
1000w psu/vapo Ls/2x74gb raptor raid.
And a Prime run at 4.2
Using regular old Ballistix DDR3, not the fancy tri-channel stuff...1.76 VDIMM
Mine will Post up to 4.7GHz no problem but anything close to 4600MHz and over it just falls apart once the HDD starts spinning. After 215BCLK it is a no go also.
Here are some initial runs. Still waiting on a pot to see what it can do under cold. For some reason I think this chip might do OK....
Some quick 3Dmarks and a 32M to show before RE2 went berserk and started feeding my hardware about .3 volts over what was set in BIOS
I did not try to max out CPU for 3D or 32M but I doubt it will go much higger than this on air.
3D03-122K
3D05
I didn't even take screenshots of 06 but here is the link for info. purposes.
3D06-26502-4.2GHz(IIRC)
I will have to redo Vantage as I never got it validated but it was also around 4.2GHz....22.5k IIRC.
32M 8m31sec@4290MHz Ram@1.9v
It will be very interesting to see what results come from this but I am more interested in what Fr3ak talked about in regards to the "BCLK wall".
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