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1600mhz RAM running at 667mhz

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March 24, 2013 7:34:26 AM

I just installed a new motherboard (an ITX) and I open speccy to see my PNY 1600mhz RAM running at 667mhz? What can I do to tune it back up to 1600? Thank you for all of your contributions



I'm sure my RAM is 1600mhz and I'm sure my motherboard can support 1600mhz
a c 86 V Motherboard
a b } Memory
March 24, 2013 7:42:23 AM

Your RAM isn't 1600 MHz, it's 1600 MT/s. Since we're talking Double Data Rate, that's equivalent to an 800 MHz clock.

It's very common for the BIOS/UEFI to default 1600 MT/s RAM to 1333 MT/s. Simply go in there and select the XMP profile for 1600 MT/s.
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March 24, 2013 7:44:59 AM

Sakkura said:
Your RAM isn't 1600 MHz, it's 1600 MT/s. Since we're talking Double Data Rate, that's equivalent to an 800 MHz clock.

It's very common for the BIOS/UEFI to default 1600 MT/s RAM to 1333 MT/s. Simply go in there and select the XMP profile for 1600 MT/s.


okey dokey, I'll try that! Thanks
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a b V Motherboard
a b } Memory
March 24, 2013 8:42:03 AM

A lot of Ram advertised as 1600 Mhz will run at 1600 but will by default run at 1333 which is DDR Double data rate so if you half that you get the 667 that you are getting reported.
Usually you will need to set it in the Bios to run at 1600.

Mactronix :) 
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