What is the frequency of the RAM in my system?

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epikness

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Oct 17, 2017
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I recently upgraded my computer's ram from 8gb to 16gb, and I'm not sure whether the frequency of both of the sticks are 1866MHz. I got this computer pre-built, and supposedly, the frequency of the ram stick that was already in there was 1866MHz, so I bought another DDR3 8gb 1866MHz ram stick and put it in. Now, I'm not sure however if the ram stick already in there was 1866MHz. I've included 3 screenshots of the CPU-Z numbers.

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Solution
B
DRAM Frequency of 666.6 MHz as shown in the first CPU-Z screenshot indicates the frequency of the clock going to all of the memory. But as the memory is double data rate (DDR3), the memory runs at twice the clock frequency. So the memory is running at 2 x 666.6 MHz = 1333.2 MHz (MT/s).

The system is running the memory at lower frequency in order to ensure compatibility between the memory modules, because different brands of memory are being used.

If wanting the memory to run at higher frequency (higher than 1333 MT/s), then manual adjustment of memory voltage, frequency and timings within BIOS would have to be attempted. But there's no guarantee of success though due to differences in the memory modules used.
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brispuss

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Dec 27, 2014
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DRAM Frequency of 666.6 MHz as shown in the first CPU-Z screenshot indicates the frequency of the clock going to all of the memory. But as the memory is double data rate (DDR3), the memory runs at twice the clock frequency. So the memory is running at 2 x 666.6 MHz = 1333.2 MHz (MT/s).

The system is running the memory at lower frequency in order to ensure compatibility between the memory modules, because different brands of memory are being used.

If wanting the memory to run at higher frequency (higher than 1333 MT/s), then manual adjustment of memory voltage, frequency and timings within BIOS would have to be attempted. But there's no guarantee of success though due to differences in the memory modules used.
 
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Solution
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epikness

Reputable
Oct 17, 2017
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4,510


Thanks for your help! I bumped up my ram speed to 1866 MHz, and it works perfectly!
 
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