Overclocked 5Ghz Sandy Bridge datacentre build out...

DamoTourettes said:
IPC is inter process communication - something that is completely irrelevant to us as we're running a single threaded app. Also, the 12MB of cache is of interest, but only in instances where we're utilising more than one core for each instance of our application - i.e. 4 cores - 3 x our application, 1 dedicated core for OS.

As for stability, I'm running Intel Burn Test/Linpack for at least 8 hours.
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The Core i7 processors I mentioned are dual cores running at 4.66GHZ with more L3 cache per core than a normal Core i7 quad or six core processors. Of course Turbo is probably active too meaning it is most likely that the actual clockspeed is slightly higher too.

BTW,8 hours testing ONLY??

I test my overclocks for 24 hours at least. You do realise that even then all the stability testing is telling you is that the overclock is stable for the tested time period under load.

Do you intend to repeat the stability testing at 1 month,2 month,3 month,6 month and 12 month time points to ensure the CPUs are entirely stable still??
 
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In fact why doesn't the OP just wait for Sandy Bridge E?? Single core performance is meant to be better than SB and since it lacks an IGP clock headroom is probably better too(even though I still think overclocking in this case is mad).
 
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Maybe an idea to help with possible instability is to have at least 2 boxes installed all identical, if it's possible to flip the load over to the other box every day you can then test the downed box regularly for any issues.

CPU's can degrade when pushed hard, it'd be good to catch it as early as possible.
 
CAT-THE-FIFTH said:
In fact why doesn't the OP just wait for Sandy Bridge E?? Single core performance is meant to be better than SB and since it lacks an IGP clock headroom is probably better too(even though I still think overclocking in this case is mad).
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Funny you should mention that - it's precisely what we're going to do. I think the SB-E chips are going to be exactly what we're after - both from a cores as well as chip memory perspective... :)
 
Out of curiosity, did you eventually go for the Noctua NH-D14? Since you were going to install your setup in a DC, what case did you eventually go for? Surely it did not fit in 1U right?

Cheers,
M
 
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