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ADATA 1333MHz DDR3 RAM running at only 667MHz

Hello,
In my new build I installed one ADATA premier 4GB 1333MHz DDR3 RAM but when I checked its clock in Speecy and CPU-Z it showed only 667 MHz.
What could be the reason?
Specs:
AMD Phenom II X4 955 BE (supports upto 1333MHz RAM)
ASUS M5A88-M motherboard
5 answers Last reply Best Answer
More about adata 1333mhz ddr3 running 667mhz
  1. Best answer
    The DRAM Frequency number as reported by CPUZ needs to be multiplied by x2 (e.g., 667*2=1333). This is due to DDR (Dual Data Rate). In simplest of explanations, the modules are running at a raw 667MHz, but due to DDR techniques, you are getting a data rate of 1333MHz.


    Edit:
    http://en.wikipedia.org/wiki/DDR3_SDRAM#JEDEC_standard_modules
    JEDEC standards explained in chart form
  2. So it means everything is working fine and i should not worry about it?
  3. psm360 said:
    So it means everything is working fine and i should not worry about it?


    Exactly. Everything is A-OK
  4. Thanks psaus
  5. Best answer selected by psm360.
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