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My QMD folder lost its OC

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Max0r

Member
Joined
Oct 18, 2005
Location
Chicago Burbs
Due to some WEIRD problem i'm running at stock settings. Was doing 225 ppd, lets see @ 3.4 GHz 800 FSB 200 RAM. Let's see 2.26 GHz 533 FSB 133 RAM.

edit: my bad, 533/133 fsb and 166 RAM.
 
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Are you sure it was really running at 3.4 when you were timimg QMDs? I ask because 225 ppd is almost exactly what it should put out at 2.26 GHz, 2.26 x 95ppd/GHz = 214.7ppd. The 95ppd/GHz figure comes from a lot of folks not just me. Silver built a 2.26 GHz cellyd, oc'd to 3.4 GHz with some tight ram timings and got 435ppd, 128ppd/GHz. On QMDs, celeron Ds are memory bandwidth bound until FSB goes over ~750 effective. At this point memory bandwidth exceeds ~4000mb/sec and production improves dramatically. A 50% oc results in 100% increase in production. If you've got everything working right, these are the results you'll see.
 
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It is funny you mention that because here's something freaky. The point production is exactly the same now! SuperPI 1 MB is running a helluva lot slower, but QMD production is same?!?!? Weird! Here's a thread where I posted screenshots of up to 3.5 GHz 206 MHz memory...

http://www.ocforums.com/showpost.php?p=4064752&postcount=36

Oh ya forgot to mention, this is all on one stick of RAM not running tight timings, just ValueSelect. I will have another one in a couple weeks for dual channel capabiltiies. Maybe that's been holding this proc back.. bringing it to its knees.
 
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