memory speed isue

marrio1981 · Mar 26, 2013

hello!
when i bought the pc i currently run(year ago), i bought MoBo and GSkill Ripjaws DDR3 1600 CL9 2x2GB that showed in BIOS @ 1600 without touching anything. month ago i order at same pc shop on internet another memory kit just like the other one.3 days ago i noticed in bios that memory is set @ 1333. memory sticks labels are all the same, no diference just like they wouldn´t be any diference. CPU-z says another thing : http://valid.canardpc.com/2745519
why is this happening?
thanks all for helping and answering!

mclovits · Mar 26, 2013

You should be able to manually set your RAM speed in the BIOS to 1600. CPU-Z is reporting the correct speed, basically DDR (Double Data Rate) = 1600MHz while the actual speed of the RAM is 800MHz. It's kinda hard to explain but don't worry, you're speed is normal.

marrio1981 · Mar 26, 2013

mclovits :

ok i understand nothing is to worry about
but what about this: Slot 1 : 2048MB (12800) , Slot 2 : 2048MB (10700), those numbers, why are they difernet 12800-10700?

wanderer11 · Mar 26, 2013

You should have the sticks separated a slot. Slot 1 & 3, or 2 & 4 for dual channel. If you use 1 & 2 you are in single channel mode most likely. Read your mobo manual to make sure. Also, you need to enable xmp in order to get the rated 1600 MHz, 1333 is the default.

marrio1981 · Mar 26, 2013

wanderer11 :

i have 4 ramm sticks
and cpu-z shows 12800 in slot 1 and 3 , 10700 in slot 2 and 4

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