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Running 1.65v 1600 @ 1.5v??

Last response: in Memory
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April 10, 2012 1:36:55 AM

Hello All,

I had an issue a few days ago where my Ram is rated at 1600 Mhz@1.65v. The problem is that a lot of people say sandy bridge proc should not be ran with 1.65v ram. I did some messing around in my BIOS and got my ram to run at 1600@1.5v.

My question is, will I be ok doing this, and should I run some type of tests to make sure it's stable? If need be I will reduce it back to 1333 which runs automatically at 1.5v but I did pay for 1600 I would like to us it...

Thanks in advance

More about : running 65v 1600

a c 146 } Memory
April 10, 2012 2:05:25 AM

People already answered your question in your other post.

Read the warranty disclaimer. It will work, but there is a large number of the failure @ that speed.
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April 10, 2012 2:09:34 AM

nikorr said:
People already answered your question in your other post.

Read the warranty disclaimer. It will work, but there is a large number of the failure @ that speed.


Sorry if I can't make out the conflicting advice..
Is it the speed or the voltage that's causing high failure rates?
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a c 146 } Memory
April 10, 2012 2:15:59 AM

The voltage is what memory controller have the hard time.

And secondly, the frequency is above the specs, but it is less of the problem.
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Best solution

a c 146 } Memory
April 10, 2012 2:16:38 AM

Purchase the warranty protection and be OK.
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a b } Memory
April 11, 2012 7:17:31 AM

Don't do it since memory is rated for 1.65V only after it failed testing at 1.50V. Manufacturers never intend to make 1.65V DRAM chips and will not sell such parts under their own branding but instead distribute them unmarked.
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April 11, 2012 7:37:01 AM

bryanl said:
Don't do it since memory is rated for 1.65V only after it failed testing at 1.50V. Manufacturers never intend to make 1.65V DRAM chips and will not sell such parts under their own branding but instead distribute them unmarked.


I can't say I agree, this is a popular kingston hyperx brand..
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April 12, 2012 8:08:33 AM

Best answer selected by robertris2.
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a b } Memory
April 12, 2012 6:52:41 PM

bryanl said:
Don't do it since memory is rated for 1.65V only after it failed testing at 1.50V. Manufacturers never intend to make 1.65V DRAM chips and will not sell such parts under their own branding but instead distribute them unmarked.

robertris2 said:
I can't say I agree, this is a popular kingston hyperx brand..

Do you have documentation or even a citation showing any non UTT DDR3 chip specified for 1.65V nominal? The catalogs at Samsung, Hynix, and Micron appear to list nothing requiring a voltage above 1.50V.

I don't believe Kingston buys completed chips any more but instead cuts completed wafers, meaning those chips weren't fully tested and graded by their manufacturers.
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