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xmp or manual setting?

post #1 of 10
Thread Starter 
What you guys prefer using XMP setting or Manual setting for ram?
since both of this setting are pretty much exact same, is any difference for using xmp or manual setting?
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post #2 of 10
XMP. If your stable at XMP settings then switch to manual and tighten the timings.

(Just note that XMp are Overclocked settings. This means your ram isnt necessary stable )
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post #3 of 10
XMP doesn't overclock, it sets the memory to the rated timings & voltage. Problem with XMP is that it usually overvolts the QPI/VTT, sometimes much more voltage than necessary.
    
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post #4 of 10
Quote:
Originally Posted by FtW 420;12131232 
XMP doesn't overclock, it sets the memory to the rated timings & voltage. Problem with XMP is that it usually overvolts the QPI/VTT, sometimes much more voltage than necessary.

lachen.gif

XMP are factory over clocked specifications.


Extreme Memory Profile

According to "DDR3" no ram is supposed to pass 1.5V (SPD settings)

And you cannot reach XMP clocks with out increasing the voltage..
And that is overclocking..
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post #5 of 10
So when you buy 2000Mhz memory & XMP overclocks it to 2000Mhz at the rated timings that is your idea of overclocking?

lachen.gif
    
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post #6 of 10
Quote:
Originally Posted by FtW 420;12132685 
So when you buy 2000Mhz memory & XMP overclocks it to 2000Mhz at the rated timings that is your idea of overclocking?

lachen.gif

When you buy a video card that has a higher clock rateing then nvidia specifics its not overclocked?


You dont get it do you. If its out of spec it is over clocked.

Every single DDR3 IC is rated to run at a specific timing (usually 9) at 1.5V

If you go under 9 or past 1.5V you are overclocking the IC. It dosnt matter is intel gave it a name AKA XMP.
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post #7 of 10
I do get it, when you buy a card with a factory overclock it is overclocked, but isn't that the stock speed of the card you bought? Some people overclock beyond that.

Memory usually has several JEDEC specs, but same as the video card, if you buy 1600Mhz 8-8-8 24 2t @ 1.65V memory & you run it at that speed & timings, you're running at it's max rated stock speed.
If the 1600Mhz memory specs are from 1.5 to 1.65 volts it isn't necessarily being run out of spec as soon as you step it up to 1.52V at 1066 9-9-9 27 27 2t.

Maybe I'm just all new at this overclocking stuff...
    
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post #8 of 10
To answer your question I prefer to apply manually because you get to learn your system and what is required for stable operation and what timings you can or can't use. Sometimes the XMP doesn't work as it should anyway especially if you are increasing BCLK or FSBs etc. Choose your own frequencies, multipliers then try and tighten timings.
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post #9 of 10
Quote:
Originally Posted by FtW 420;12133945 
Memory usually has several JEDEC specs, but same as the video card, if you buy 1600Mhz 8-8-8 24 2t @ 1.65V memory & you run it at that speed & timings, you're running at it's max rated stock speed.
If the 1600Mhz memory specs are from 1.5 to 1.65 volts it isn't necessarily being run out of spec as soon as you step it up to 1.52V at 1066 9-9-9 27 27 2t.
.

Those jedec specs are there that way you can adjust the RAm to suite the CPU. its not there as different "OC" settings.


Take a word from intel
Quote:
Originally Posted by Intel.com 
Intel® Extreme Memory Profile (Intel® XMP) is a performance-packed expansion of the standard DDR3 memory specification, enabling a robust, overclocking solution designed to take advantage of the mega-gaming features built into Intel® technology-based PCs. If you like to overclock and squeeze every possible ounce of performance from your PC, then memory based on Intel® XMP is the solution you need to destroy your enemies and save the universe without breaking a sweat.

Even intel said it. Its a over clock setting.

if you look up the IC on the chips you will see they arent rated for the timings in the XMP.
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post #10 of 10
This thread is funny :lachen:I see you newbies have no idea who FTW is rolleyes.gif

@OP-Set your BIOS up manually and you will achieve better results
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