For those with Intel Penryn's 45nm (Mobile CPU)

Message boards : Number crunching : For those with Intel Penryn's 45nm (Mobile CPU)

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Message 66809 - Posted: 8 Jul 2010, 4:54:11 UTC
Last modified: 8 Jul 2010, 4:55:48 UTC

Been running my T8300 CPU OC'ed by 500MHz. Rock solid stable. (I can run @ 3.0GHz, but not very stable in the long run).

Got huge performance boost: https://boinc.bakerlab.org/rosetta/show_host_detail.php?hostid=1247398



Runs not hotter than 65C full load. Around 75C when running full GPU (Collatz) and CPU (Rosetta) load (Both share the same heatsink in my laptop).

With this OC, the only mobiles that beat it are the high ends i5s and the i7s. Pretty neat, huh?

So just putting this out there for those with the same CPU architecture, you have A LOT of overclocking potential. Might give it a try.
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mikey
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Message 66814 - Posted: 8 Jul 2010, 11:11:31 UTC - in response to Message 66809.  
Last modified: 8 Jul 2010, 11:11:50 UTC

Been running my T8300 CPU OC'ed by 500MHz. Rock solid stable. (I can run @ 3.0GHz, but not very stable in the long run).

Got huge performance boost: https://boinc.bakerlab.org/rosetta/show_host_detail.php?hostid=1247398



Runs not hotter than 65C full load. Around 75C when running full GPU (Collatz) and CPU (Rosetta) load (Both share the same heatsink in my laptop).

With this OC, the only mobiles that beat it are the high ends i5s and the i7s. Pretty neat, huh?

So just putting this out there for those with the same CPU architecture, you have A LOT of overclocking potential. Might give it a try.


VERY NICE! Now for the tough questions...how many more credits are you getting by oc'ing than not oc'ing? How many more units are you going thru while oc'ing versus not oc'ing?
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Message 66822 - Posted: 8 Jul 2010, 18:35:24 UTC - in response to Message 66814.  
Last modified: 8 Jul 2010, 18:37:58 UTC

VERY NICE! Now for the tough questions...how many more credits are you getting by oc'ing than not oc'ing? How many more units are you going thru while oc'ing versus not oc'ing?


Never took a note of it. But it never even got close to the 1K RAC mark. Now it passed it and reaches ~1100 RAC when running all day and all night.


How did you determine the stability of the OC?


No crashes, playing games for hours no problems, and no validation errors. (Except for the common WU that fails after 3 secs of execution).
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Message 66824 - Posted: 8 Jul 2010, 20:01:28 UTC

try and run this atleast 50 time and tell if it is stable
http://www.xtremesystems.org/forums/showthread.php?t=197835
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Message 66825 - Posted: 8 Jul 2010, 21:11:51 UTC - in response to Message 66824.  

try and run this atleast 50 time and tell if it is stable
http://www.xtremesystems.org/forums/showthread.php?t=197835


Only ran 20 runs.



Temps went pretty high up, higher than when rosetta and collatz running together (sharing same heatsink)! 80C
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Message 66917 - Posted: 15 Jul 2010, 7:34:06 UTC

Chilean, it is nice to know that mobile core 2 duo's can be overclocked. However, I can't get SetFSB to work with my P8400 2.26ghz 533fsb. How did you find out the correct clock gen setting for your cpu? Trial and error?
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Message 66919 - Posted: 15 Jul 2010, 12:50:58 UTC - in response to Message 66917.  

Chilean, it is nice to know that mobile core 2 duo's can be overclocked. However, I can't get SetFSB to work with my P8400 2.26ghz 533fsb. How did you find out the correct clock gen setting for your cpu? Trial and error?


There was a forum with my laptop model... and had a guide on how to undervolt and overclock using the a certain PLL that works with ASUS... try google'ing your laptop model.
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Message boards : Number crunching : For those with Intel Penryn's 45nm (Mobile CPU)



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