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Intel Xeon E3-1265LV2 / 2.5 GHz Processor Turbo restricted.


rokkzz
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Hi Guys

 

Have an Intel Xeon E3-1265LV2 / 2.5 GHz Processor installed in the Gen8 , however when I stress test/Bench mark, the processor max's out at 3092MHz however it is rated to turbo clock at 3.5.

 

Also appears to happen to forum member "shonk"  although his are not at 100% load appears to stop turbo clock at 3092MHz, as per screen shot below.

 

When on idle the processor sits a 2194MHz.

 

Will go into bios to see if there is any efficiency setting restricting the processor. Any other ideas?

 

Thanks

Shane

 

 

 

 

 

 

Untitled.jpg

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I believe Turbo boost will only hit the highest speed on a single core. If all cores are active the Turbo boost runs slower. If you have a benchmark that would only run one core it may hit 3.5Ghz:

http://www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-technology.html?wapkw=turbo+boost+technology

 

Turbo Boost starts on page 60:

http://www.intel.com/content/dam/www/public/us/en/documents/design-guides/xeon-e3-1200v2-lga1155-thermal-guide.pdf

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Thanks Guys, very informative information.

 

So based on that and this attached screen shot, for the MHz to reach high 3.4's ........I take it would have been from individual core bench/stress test for the temp high Mhz achieved?

 

Thanks again

 

 

Figure16.jpg

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I believe Turbo boost will only hit the highest speed on a single core. If all cores are active the Turbo boost runs slower. If you have a benchmark that would only run one core it may hit 3.5Ghz:

http://www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-technology.html?wapkw=turbo+boost+technology

 

Turbo Boost starts on page 60:

http://www.intel.com/content/dam/www/public/us/en/documents/design-guides/xeon-e3-1200v2-lga1155-thermal-guide.pdf

 

 

thanks 

schoondoggy

 

 

 

says it all here in your first link  

 

"Due to varying power characteristics, some parts with Intel® Turbo Boost Technology 2.0 may not achieve maximum turbo frequencies when running heavy workloads and using multiple cores concurrently."

 

Will read into the second link now.

 

 

Even with this minor restriction, amazing little chip , consider it beats my gaming machine in performance with factory clock ( i2700K )  with half the power.

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