Why is my ram speed lower than it should be?

2nd of December 2012 1

Why is my ram speed lower than it should be?

Question by Abszs K: Why is my ram speed lower than it should be?
I got two different memory modules for my computer:
4GB Patriot Signature (1x4GB) DDR3 PC3-10666C9 1333MHz Single Channel Module
2GB Patriot Signature (1x2GB) DDR3 PC3-10666C9 1333MHz Single Channel Module

they are both the same speed and have the same timings and my motherboard can also support up to 1333 MHz. when i went on my uefi bios (asrock h61m-s motherboard), it said
ram: ddr3-1066MHz AUTO.
there is an option to set it to 1333 but will that mess up my system or damage my ram

Best answer:

Answer by Aaron U.
You have to manually adjust your RAM in BIOS to run at its rated specs. All motherboards set RAM to a lower speed by default. That’s why you have to change it yourself. No, adjusting your RAM manually won’t mess anything up. Simply change the option from ‘Auto’, to 1333MHz.

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1 great comment(s) for this post

  1. Axey 11:03 am 2/12 of 2012

    It won’t do any damage.

    Worst case scenario, your computer won’t boot or you might find your system a little unstable, if this is the case, set it back to it’s old setting.

    If the computer won’t boot or post, you can take the CMOS battery out for 10 seconds to reset the BIOS to factory default settings.

    Go nuts, fiddle with it.

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