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qpi/vtt question

This is a discussion on qpi/vtt question within the Gigabyte Intel Motherboard / CPU forums, part of the Intel motherboards / CPU category; What will you guys consider the max safe voltage on the qpi/vtt for 24/7 in a well ventilated case. Would ...

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Old 11-02-2011, 09:03 AM   #1 (permalink)
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qpi/vtt question
What will you guys consider the max safe voltage on the qpi/vtt for 24/7 in a well ventilated case.

Would give me your settings so I can compare.

Thank you very much.
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Old 11-02-2011, 10:00 AM   #2 (permalink)
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depends on cpu families

bloomfield i7 9xx series 1.35-1.45v cpu vtt 24/7
lynnfield i7 8xx series <1.35v not sure on that one
gulftown i7 980x series <1.35-1.4v as per http://i4memory.com/f55/intel-core-i...-ratios-23430/

So generally I'd keep it between 1.2-1.35v and within 0.50v of vdimm.
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Old 11-02-2011, 10:45 AM   #3 (permalink)
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Well......the rams will not run at that low qpi/vtt.....so I farted around with the rig and I would like to know what you think about these numbers...any good?
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Old 11-02-2011, 12:09 PM   #4 (permalink)
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for 24/7 with i7 980x uncore to mem frequency ratio has been lowered from 2.0x to 1.5x as per http://i4memory.com/f55/intel-core-i...-ratios-23430/ so lower uncore frequency = less cpu vtt required. All is outlined at http://i4memory.com/f55/intel-core-i...-ratios-23430/
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Old 11-02-2011, 02:45 PM   #5 (permalink)
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OK if I lower the uncore to mem frequency ratio will I get the same numbers (performance)?

Thank you for your advise.
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